1
Testbank PE4P PE4PART ARTA Introduction to Power Engineering 010100020021000D Which of the following is not a definition of a power plant? a) b) c)
d) e)
Any one or more boilers in which steam or other vapour is generated at more than 103 !a "1# psi)$ Any one or more boilers containing li%uid and having a woring pressure e&ceeding 1100 !a "1'0 psi)$ Any one or more boilers containing li%uid and having a woring temperature e&ceeding 121 degrees (elsius "2#0 degrees ahrenheit)$ Any one or more boilers in which steam or other vapour is generated at less than #* !a "+ psi)$ Any engine run from one or more boilers containing li%uid and having a woring pressure e&ceeding 1100 !a "1'0 psi)$
010100020021000D ,arly government involvement in certification of power engineers became more important for the following reasons e&cepta) b) c) d) e)
efficiency labour mobility safety pollution technological advancements
010100020021000( Which of the following is not characteristic of increased automation in power plants? a) b) c) d) e)
computerised control stations increased mechanisation manual flame checing continuous monitoring of processes continuous monitoring of costs
010100020021000A .!ower plant. means a) b) c)
d)
any one or more boilers in which steam or other vapour is generated at more than 103 !a "1# psi)$ any one or more boilers in which steam or other li%uid is generated at more than 103 !a "1# psi)$ any one or more boilers containing li%uid and having a woring pressure e&ceeding 1/200 !a "1'0 psi)/ and a temperature e&ceeding 121 degrees ( "2#0 degrees )$ any one or more boilers containing li%uid and having a woring pressure e&ceeding 1/200 !a "1'0 psi)/ and a temperature not e&ceeding 121 degrees ( "2#0 degrees )$
2
e)
any one or more boilers containing li%uid and having a woring pressure not e&ceeding 1/100 !a "1'0 psi)/ and a temperature e&ceeding 121 degrees ( "2#0 degrees )$
010100020021000( !ower engineers are a) b) c) d) e)
safety code officers in a power plant automatically$ %ualified to perform any welding obs in a power plant$ silled worers who operate and maintain the e%uipment in a power plant$ %ualified to perform any electrical obs in a power plant$ %ualified to mae design changes in a power plant$
010100020021000D n the early days/ owners of power plants hired worers/ who started out doing manual labour and through ac%uired e&perience they were promoted to obs with gradually increasing levels of sill$ a) b) c) d) e)
%ualified highly educated trained unsilled college trained
010100020021000 n order to produce greater efficiency/ higher boiler pressures were used and this led to due to employing of un%ualified operators in a power plant$ a) b) c) d) e)
economic gains serious accidents higher efficiency safer woring conditions less labour disputes
010100020021000 Which of the following is not a common wor schedule for power engineers? a) b) c) d) e)
4ear round employment 5easonal lay6offs ,ight hour days 7welve hour days 8otating day and night shifts
010100020021000A When oil mi&es with water in the boiler the resultant effect isa) b) c)
serious foaming accumulation of very hard scale resulting in tube burnout accumulation of soot
3
d) e)
decrease in water level shifting and loosening of baffles
010100020021000( 7he holder of a (ertificate of (ompetency/ the classification of which authori9es him or her to act as a engineer/ may setch/ construct/ install/ operate/ repair/ and give advice on all things pertaining to any in which that person is employed$ a) b) c) d) e)
welding shop automotive shop power plant fish plant hydro plant
010100020021000, !ower engineers can usually e&pect to wor a) b) c) d) e)
straight straight straight straight rotating
+ hour day shifts$ 12 hour day shifts$ + hour night shifts$ 12 hour night shifts$ shifts$
010100020021000, n a power plant/ the power engineer may function as a supervisor who directs others in the operation on a shift$ a) b) c) d) e)
simple and economical welding and electrical administrative and cooperative production and receiving safe and efficient
010100020021000( (ommittees which establish standards are composed primarily of which of the following elements? a) b) c) d) e)
only e&perts from the industry and government one government appointed standards board e&perts from the industry/ professional and insurance groups and all levels of government only multi6:ational power corporations one independent safety and standardisation board
010100020021000D Which of the following certificates of competency %ualifies the holder to tae charge of the general care and operation of any power plant as chief steam engineer/ and to supervise the engineers in that plant and tae charge of a shift in any power plant as shift engineer? a) b) c)
7hird (lass ,ngineer;s (ertificate of (ompetency uilding
4
d) e)
irst (lass ,ngineer;s (ertificate of (ompetency ireman;s (ertificate of (ompetency
010100020021000A Which of the following duties is a holder of a ourth (lass ,ngineer;s (ertificate of (ompetency not %ualified to perform? a) b)
c)
d)
e)
7ae charge of a shift in a power plant having a capacity of more than 10/000 W/ as shift engineer$ 7ae charge of the general care and operation of a power plant consisting of one or more coil type drumless boilers having an aggregate capacity not over #/000 W/ when only in use for the purpose of subterranean thermal flooding in oil fields/ as chief engineer$ 7ae charge of the general care and operation of a power plant having a capacity of not more than 1/000 W as chief steam engineer/ and to supervise the engineers in that plant$ 7ae charge of a shift in a power plant consisting of one or more coil type drumless boilers having an aggregate capacity of not more than 10/000 W/ when used only for underground thermal flooding in oil fields/ as shift engineer$ 7ae charge of a shift in a power plant having a capacity of not more than #/000 W/ as shift engineer$
010100020021000, Which of the following is re%uired in order to progress to a higher certificate? a) b) c) d) e)
,&perience only ,ducation only =old the ne&t lower level certificate only oth education and the ne&t lower level certificate ,ducation/ e&perience/ and the ne&t lower level certificate$
010100020021000D 7he A< is an organisation who;s primary concern isa) b) c) d) e)
lowering of lowering of increase in lowering of increase in regulation
maintenance costs through standardisation production costs through increased automation safety awareness through public education insurance costs through standardisation e%uipment %uality through tougher government
010100020021000 n the early days/ the following two agencies got involved in the certification of both power plant operators and e%uipment due to the many accidents that were caused by employing un%ualified operators and improper use of e%uipment in power plants-
5
a) b) c) d) e)
owners and governments insurance underwriters and governments educational institutions and owners governments and educational institutions owners and insurance underwriters
010100020021000D >n%ualified individuals operating a power plant or pressure plant ris the of the plant and the general public$ a) b) c) d) e)
health comfort resources safety economy
010100020021000( n Alberta/ the 5afety (odes Act established the following classes of !ower ,ngineer;s certificates "
A/ / (/ and D 1/ 2/ 3/ and irst/ 5econd/ 7hird/ and ourth
010100020021000D A ourth (lass !ower ,ngineer;s certificate of competency %ualifies the holder to tae charge of a shift in a power plant having a capacity of not more than W/ as a shift engineer$ a) b) c) d) e)
+/000 @/000 */000 #/000 '/000
010100020021000A A ourth (lass !ower ,ngineer;s certificate of competency %ualifies the holder to tae charge of a shift in a power plant consisting of one or more coil type drumless boilers having an aggregate capacity of not more than W/ when used for the sole purpose of underground thermal flooding in oil fields/ as shift engineer$ a) b) c) d) e)
10/000 20/000 30/000 0/000 #0/000
010100020021000,
6
A ourth (lass !ower ,ngineer;s (ertificate of (ompetency %ualifies the holder to tae charge of the general care and operation of a power plant having a capacity of not more than W as chief steam engineer/ and to supervise the engineers in that plant$ a) b) c) d) e)
#/000 /000 3/000 2/000 1/000
010100020021000, A ourth (lass !ower ,ngineer;s certificate of competency %ualifies the holder to tae charge of the general care and operation of a power plant consisting of one or more coil type drumless boilers having an aggregate capacity of not more than W/ when used for the sole purpose of underground thermal flooding in oil fields/ as chief steam engineer$ a) b) c) d) e)
1/000 2/000 3/000 /000 #/000
SI Units 010100020021000, Which of the following is a symbol for a unit of thermodynamic temperature? a) b) c) d) e)
m mol g cd
010100020021000 A mole refers to a %uantity ofa) b) c) d) e)
7ime Amount of substance Buminous intensity ,lectric current Bength
010100020021000D 7he basic unit of mass in the 5 system is a) b) c) d)
newtons cubic metres pounds ilograms
7
e)
cubic centimetres
010100020021000( 7he basic unit of length in the 5 system is a) b) c) d) e)
newtons cubic metres metres elvin mole
010100020021000( 7he basic unit of time in the 5 system is a) b) c) d) e)
metre ilograms seconds ampere elvin
010100020021000D 7he basic unit of electrical current in the 5 system is a) b) c) d) e)
metre ilograms seconds ampere elvin
010100020021000, 7he basic unit of thermodynamic temperature in the 5 system is a) b) c) d) e)
metre ilograms seconds ampere elvin
010100020021000( 7he symbol for the basic unit of electrical current is a) b) c) d) e)
m g A s
010100020021000, 7he symbol for the basic unit of time is a) b) c) d) e)
m g A s
8
010100020021000 7he symbol for the basic unit of mass is a) b) c) d) e)
m g A s
010100020021000D Which of the following is a symbol for a unit of luminous intensity? a) b) c) d) e)
m mol g cd
010100020021000(
mega micro ilo hecto milli
010100020021000A
centigram megagram milligram ton ilogram
010100020021000
giga mega ilo hecto deca
010100020021000A
giga mega ilo hecto deca
9
010100020021000D
centi deci nano micro milli
010100020021000
deci centi milli micro nano
010100020021000D
giga mega ilo hecto deca
010100020021000D (onvert 2/3'# cm into ilometres$ a) b) c) d) e)
2$3'# m 0$0023'# m 23$'# m 0$023'# m 23'$# mg
010100020021000, ind the volume of a rectangular prism 3 m long/ # m wide and 2 m high$ a) b) c) d) e)
30 3 cubic metres 30 s%uare metres 30 metres 30 cubic metres
010100020021000A f a bo& has side lengths of 3$# m/ '$2 m and 1$+ m respectively its volume isa) b) c) d) e)
3@$0' cubic metres 3/@0' cubic metres 3@$0' cubic feet 3@$0' cubic centimetres 12# cubic metres
10
010100020021000( 7he unit of area in the 5 system is a)
m 3
b)
m
c)
m
2
d)
m
e)
m
#
010100020021000( 7he is the base unit of volume in 5$ a)
m
b)
m
c)
m
2
3 d)
m
e)
m
# 010100020021000A n the 5 system force is e&pressed as a) b) c) d) e)
newtons pounds ilograms newton metres Coules
010100020021000, n the 5 system capacity "volume) is e&pressed as a) b) c) d) e)
ms litre per second oule watt litres
010100020021000( >nits of volume in the 5 system are 1$ tonnes 2$ cubic metres
11
3$ $ #$ '$ a) b) c) d) e)
litres 3 dm millilitres ilograms
1/ 2/ 2/ 2/ 1/
3/ 3/ 3/ 3/ /
/ # #/ ' '
010100020021000, 7he unit of pressure used in the 5 system is a) b) c) d) e)
ilogram s%uare metre ilooules g s%uare centimetre dyne ilopascal
010100020021000D A pascal is e%ual to a) b) c) d) e)
1 1 1 1 1
oule g s%uare cm g s%uare m : s%uare m dyne s%uare cm
010100020021000
1 1 1 1 1
g s%uare m : s%uare m bar m s W
010100020021000( 7he unit of power in the 5 system is the a) b) c) d) e)
g pascal watt newton6metre Coule
010100020021000(
1 1 1 1
oule newton6metre oulesecond amperesecond
12
e)
1 newtonsecond
010100020021000 7he unit of wor in the 5 system is the a) b) c) d) e)
watt oule newton6metresecond pascal newtonsecond
010100020021000A
one one one one *'
newton6metresecond gs%uare metre wattsecond W watts
010100020021000D 7he base unit for speed in the 5 system is a) b) c) d) e)
one one one one one
newton6metresecond metrehour metreminute metresecond metre2 hours
010100020021000( 7he base unit for acceleration in the 5 system is2 a)
metre hour 2
b)
metre minute
c)
metre second
2 2 d)
metre 12 hour
e)
metre day
2 010100020021000( 7he base unit of mass density in the 5 system is2 a)
gm
b)
gm
3
13
3 c)
gm
d)
:m
e)
:m
3 2
010100020021000A An alternate unit for force in the 5 system is 2 a)
g m s
b)
: s
2
2 c)
: m s
d)
g s
e)
m s
2
2 010100020021000D 7he base unit for energy in the 5 system is a) b) c) d)
:ms :s gms :m 2
e)
:m
010100020021000D
1 litre 10 litres 100 litres 1/000 litres 10/000 litres
010100020021000A 1@$@0 mhr is in ms$ a) b) c) d) e)
#$# ms 331$* ms 10 ms 0 ms 1$# ms
14
010100020021000D
1/000 pascals 100 pascals 10 pascals 100 pa 10 pa
010100020021000 1# miles is e%ual toa) b) c) d) e)
1/'0@ m 2/13# m 2@/2'0 m #/2** m */#0@ m
010100020021000A 10 m is e%ual to miles$ a) b) c) d) e)
'$21# #$21# 1$'0@ 1'0@ 3$2+
010100020021000( 12 in is e%ual to cm$ a) b) c) d) e)
2#$0 3#$+ 30$+ 3@$3* 32$+0
010100020021000D 1# s%uare cm is e%ual to s%uare inches$ a) b) c) d) e)
13$@#0 10$*#0 2$@#3 2$32# 2$#@0
010100020021000A 20 cubic feet is e%ual to cubic metres$ a) b) c) d) e)
0$#'# 0$0'1 0$1' 0$02+ 0$3#3
010100020021000A
15
2+ s%uare feet is e%ual to s%uare metres$ a) b) c) d) e)
2$#@0 1$0*# 0$1## 3$*0 $30
010100020021000, 3 3 1#0 cm is e%ual to in $ a) b) c) d) e)
1@$1# 20$1# 1'$3@ 3#$3 @$1#
010100020021000 20 litres is e%ual to imperial gallons$ a) b) c) d) e)
2$2 $ +$+ #$ 2$2*2
010100020021000( 10 gallons is e%ual to litres$ a) b) c) d) e)
22 #$' ++ 22$*2
010100020021000 1# g is e%ual to lb$ a) b) c) d) e)
30 33 # *# @0
010100020021000, 1/000 lbs is e%ual to gs$ a) b) c) d) e)
#0 #$ 00 $# #
010100020021000( 1$* psi is e%ual to !a$
16
a) b) c) d) e)
1/000 100 101$3 10 1*
010100020021000 '/200 !a is e%ual to appro&imately psi$ a) b) c) d) e)
1/000 @00 +00 '+@ 1/#1
010100020021000( 2 !a is the same asa) b) c) d) e)
0$1# psi 0$0'@ bar 0$02 bar '$+@# lbs%uare inch 1$#1 psi
010100020021000D f a rectangle has two sides measuring ' m in length and two sides measuring 2 m in length what is the area in s%uare metres? a) b) c) d) e)
1$11# s%uare metres 1+ s%uare metres 12@ s%uare metres 12 s%uare metres $+*'+ s%uare metres
010100020021000A Area E B & W/ if B E 1# cm F W E 2 m/ then Area E ? 2 a)
3/000 cm 2
b)
300 cm
c)
30 cm
d)
300 m
2 2
2 e)
30 m
17
010100020021000 Golume E B & W & =$ f B E 10 cm/ W E 120 mm/ F = E # m/ then Golume E ? a) b) c) d) e)
'00 litres '0 litres '0 cubic metres '00 cubic metres '00 cubic centimetres
010100020021000,
1 s%uare cm 10 s%uare cm 100 s%uare cm 1/000 s%uare cm 10/000 s%uare cm
010100020021000( 100 s%uare cm is e%ual to a) b) c) d) e)
1 s%uare m 0$1 s%uare m 0$01 s%uare m 0$001 s%uare m 10 s%uare m
010100020021000A 3
1/000 litres 3
b)
1 yard
c)
10/000 millilitres
d)
10 dm
3 3 e)
10 cm
010100020021000D
10 millilitres 1 dm 1 mm 1 millilitre 1 mms
18
Basic Arithmetic Operations 020100020021000, Add 1/*+# H 3' H 2@1 a) b) c) d) e)
2/221 1/@12 2/102 1/112 2/112
010100020021000A 5ubtract * from 101 a) b) c) d) e)
2* 3* 30 33 2
030#00020033000 (alculate1)
IIIIII 6 IIIII
E
2)
IIIIII 6 IIIII
E
3) IIIIIII 6 IIIIII E $5>577>7<:5 :>J1"100000/@@@@@@/1) :>J2"10000/@@@@@/1) :>J3"100000/@@@@@@/1) :>J"10000/@@@@@/1) :>J#"1000000/@@@@@@@/1) :>J'"100000/@@@@@@/1) $5
7<:5 A:51E:>J16:>J2K A:52E:>J36:>JK A:53E:>J#6:>J'K $8,5>B75 .Answer 1 E./A:51-3/0$0 .Answer 2 E./A:52-3/0$0 .Answer 3 E./A:53-3/0$0 030#00020033000 (alculate1)
IIIIII H IIIII
E
2)
IIIIII H IIIII
E
3) IIIIIII H IIIIII E $5>577>7<:5 :>J1"100000/@@@@@@/1) :>J2"10000/@@@@@/1) :>J3"100000/@@@@@@/1)
19
:>J"10000/@@@@@/1) :>J#"1000000/@@@@@@@/1)
:>J'"100000/@@@@@@/1) $57<:5 A:51E:>J1H:>J2K A:52E:>J3H:>JK A:53E:>J#H:>J'K $8,5>B75 .Answer 1 E./A:51-3/0$0 .Answer 2 E./A:52-3/0$0 .Answer 3 E./A:53-3/0$0
010100020021000D Jultiply @ by + a) b) c) d) e)
*22 */#32 */232 *#2 *'0
010100020021000 Divide /03# by 1# a) b) c) d) e)
33# 2'@ 12* 32' 103
010100020021000D Jultiply 3'#$2 by @2$1 a) b) c) d) e)
33/'0#$+31 33/'3+$'@ 32/#3+$#0 33/'3+$'0 33/*@1$21@
00#00020033000 (alculate1)
II & II
E
2)
II & III
E
3) I$II & II$II E $5>577>7<:5 :>J1"12/@@/1) :>J2"22/@@/1) :>J3"12/@@/1) :>J"112/@@@/1) :>J#"1$22/@$@@/0$01)
20
:>J'"12$01/@@$@@/0$03) $57<:5 A:51E:>J1L:>J2K A:52E:>J3L:>JK A:53E:>J#L:>J'K $8,5>B75 .Answer 1 E./A:51-3/0$0 .Answer 2 E./A:52-3/0$0 .Answer 3 E./A:53-3/0$0001
00#00020033000 (alculate the following1)
IIII III
E
2)
IIIIIII IIII
E
3) IIIII III E $5>577>7<:5 :>J1"1001/@@@@/1) :>J2"101/@@@/1) :>J3"1000001/@@@@@@@/1) :>J"1001/@@@@/1) :>J#"10001/@@@@@/1) :>J'"101/@@@/1) $57<:5 A:51E:>J1:>J2K A:52E:>J3:>JK A:53E:>J#:>J'K $8,5>B75 .Answer 1 E./A:51-3/$01 .Answer 2 E./A:52-3/$01 .Answer 3 E./A:53-3/$01
020100020021000( Add "6#') H 3@ a) b) c) d) e)
@# 1* 61* 6@# 62'
010100020021000( Jultiply "621$') by "6#$2) a) b) c) d) e)
1/1'0$'# 61/1*0$'2 1/1*0$*2 1/1*0$'2 61/1'0$'#
010100020021000A Divide "63*+) by 1
21
a) b) c) d) e)
62* 1'$2 631$'1 2@ 20$0#
020100020021000 2 5olve the e&pression- "63) a) b) c) d) e)
2 6 M#1+"6# H 3)N H M11 6 "62) N
1# 22 2# 1+ 1*
020100020021000 5olve the e&pression2 3 M"3$2) 6 "6) N M"*#1#) 6 "610 H 1#)N H "61@3) a) b) c) d) e)
6#3$@3 6'$33 *+$*3 6'0$0@ 12$0*
00#00020021000 ,valuate"III 6 III) H "III & I) H I $5>577>7<:5 A"00/+00/10) "100/3@0/10) ("100/200/10)
E
D"2/@/1) ,"1/@/1) $57<:5 A:5E"A6)H"(LD)H,K $8,5>B75 .Answer E./A:5-3/$02 00#00020021000 ,valuateIII I 666 & II & 6 E 3 I $5>577>7<:5 A"30/120/3) "2/+/2) ("1/@/1) D"2/+/2) $57<:5 A:5E"A3)L(L"D)K
22
$8,5>B75 .Answer E./A:5-3/$02 00#00020021000 ,valuate"II H II 6 I) H "II 6 I 6 I) $5>577>7<:5 A"1/30/1) "1/30/1) ("1/@/1) D"1/30/1) ,"1/@/1) "1/@/1) $57<:5 A:5E"AH6()H"D6,6)K $8,5>B75 .Answer E./A:5-3/0$0
E
00#00020021000 ,valuate"II 6 *) 6 O"I & I)"I & I)P 6 I & I $5>577>7<:5 A"*/#'/*) ("1//1) D"2/+/1) , Q"1/@/1) ="1/@/1) $57<:5 ,EDK E(K A:5EA6*6""(LD)",L))6"QL=)K $8,5>B75
E
.Answer E./A:5-3/0$0 00#00020021000 (alculateII H III H "I H II & I 6 II)I H III E $5>577>7<:5 :>J1"10/20/1) :>J2"100/200/1) :>J3"1/@/1) :>J"10/@0/10) :>J#"2/+/2) :>J'"10/20/2) :>J*"2/+/2) :>J+"100/300/1) $57<:5 A:5WE:>J1H:>J2H":>J3H:>JL:>J#6:>J'):>J*H:>J+K $8,5>B75 .Answer E ./A:5W-3/$01
23
00#00020021000 ,valuateII & II & II & II 66666666666666666 E II & II & II $5>577>7<:5 A"3/@@/3) "10/@0/10) ("20/+0/2) D"2/'0/2) ,"#/0/#) "3/#/3) Q"#/10/#) $57<:5 A:5E"ALL(LD)",LLQ)K A:58E:7"A:5H$#)K $8,5>B75 .Answer E./A:58-3/$01 00#00020021000 5olve the following problem"Answer as a decimal) "I H II)M"I H II)"I H II)N $5>577>7<:5 1"#/+/1) :1"1/#/1) D1 2"2//1) :2"1/#/1) D2 3"1/#/1) :3"1/#/1) D3 $57<:5 D1E:1H1K
E
D2E:2H2K D3E:3H3K A:5WE"1H:1D1)"2H:2D2)"3H:3D3)K $8,5>B75 .Answer E./A:5W-3/$01 030#00020021000 ,valuate"II H II 6 I) H "II 6 I 6 I) $5>577>7<:5 :1"10/@@/1) :2"10/@@/1) :3"1/@/1) :"10/@@/1) :#"1/@/1) :'"1/@/1) $57<:5
E
24
A:5E":1H:26:3)H":6:#6:')K $8,5>B75 .Answer E ./A:5-0/$01 030#00020021000 ,valuateIIII & I & II E $5>577>7<:5 :1"100/@@0/10) :2"2/@/1) :3"2/@/1) :"2/@/1) :#"2/@/1) $57<:5 A:5E:1:2L:3L::#K $8,5>B75 .Answer E./A:5-3/$001 0303000200200022 RK10 RK 5olve1)
M"3 H 6 2)N H M'0"' & #)N
2)
2" & #)2" 6 2)
Answers1) E 2) E
Fractions, Decimals, and Percentages 010100020021000D Which of the following is an improper fraction? a) b) c) d) e)
3*3@ ' 3 '#100 32 12
010100020021000( Which of the following is a mi&ed number? a) b) c) d) e)
323' 1@# 3 1# '2 3#*
0#030002000001'K21#K'+*K212K (onvert the following mi&ed numbers to improper fractions$ ",nter your answer in this style 2 23 E +3)
25
1)
' #'
E
2)
1#
E
3)
@ #*
E
)
10 12
E
020100020021000, ,valuate the following a) b) c) d) e)
3+ H 23 6 12 to lowest terms$
122 '12 '2 '13 132
020100020021000A ,valuate the following 310 & #2 6 23 to lowest terms$ a) b) c) d) e)
112 1120 #'0 33'0 3'
00#00020021000 ,valuateII & II & II & II 66666666666666666 E II & II & II $5>577>7<:5 A"3/@@/3) "10/@0/10) ("20/+0/2) D"2/'0/2) ,"#/0/#) "3/#/3) Q"#/10/#) $57<:5 A:5E"ALL(LD)",LLQ)K A:58E:7"A:5H$#)K $8,5>B75 .Answer E./A:58-3/$01 0303000200++0001K1#K1+K1+K+2#K1 23112K'+ 2#K#1 3*K ,valuate the following fractional problems$ "8educe to lowest terms) 1)
3+ & 3 & +@
E
2)
12 & 3* & 11#
E
3)
3+ & 23 & # & #+
E
26
)
310 & #' & 1@ & 3
E
#)
211' & 123# & 32#
E
')
2*3# & #1' & 1#3
E
*)
2 12 & * 3# & 3 3#
E
+)
23 & + * & 1 2*
E
010100020021000 n lowest terms 0$0 is e%ual toa) b) c) d) e)
1# 12# 10 10 100
010100020021000( 1@12 is e%ual toa) b) c) d) e)
2 @$' 1$#+3 '$@31 *
00#000200000 (hange the following fractions to decimals1)
II E
2)
II E
3)
II E
) II E $5>577>7<:5 A1"1/3/1) A2"3/#/1) 1"3/3/1) 2"'/*/1) (1"#/'/1) (2"+/@/1) D1"*/+/1) D2"@/@/1) $57<:5 A3EA1A2K 3E12K (3E(1(2K D3ED1D2K AE:7"A3L1000H$#)1000K E:7"3L1000H$#)1000K
27
(E:7"(3L1000H$#)1000K DE:7"D3L1000H$#)1000K $8,5>B75 .Answer 1 E./A-3/$01 .Answer 2 E./-3/$01 .Answer 3 E./(-3/$01 .Answer E./D-3/$01 00#000200**000 (onvert the following common fractions to decimal numbers$ 1)
II
E
2)
III
E
3)
IIIII
E
)
III
E
#)
IIIII
E
')
III
E
*) IIIIIII E $5>577>7<:5 :>J1"2/@/1) D,J1"2/@/1) :>J2"2/@/1) D,J2"11/@@/1) :>J3"11/@@/1) D,J3"101/@@@/1) :>J"11/@@/1) D,J"2/@/1) :>J#"11/@@/1) D,J#"101/@@@/1) :>J'"11/@@/1) D,J'"2/@/1) :>J*"101/@@@/1) D,J*"101/@@@/1) $57<:5 A:51E:>J1D,J1K A:52E:>J2D,J2K A:53E:>J3D,J3K A:5E:>JD,JK A:5#E:>J#D,J#K A:5'E:>J'D,J'K A:5*E:>J*D,J*K $8,5>B75 .Answer 1 E./A:51-3/$01 .Answer 2 E./A:52-3/$01 .Answer 3 E./A:53-3/$01 .Answer E./A:5-3/$01 .Answer # E./A:5#-3/$01 .Answer ' E./A:5'-3/$01 .Answer * E./A:5*-3/$01
010100020021000A @#R of '3 litres of gasoline e%ualsa)
#@$+# litres
28
b) c) d) e)
#@@ litres 0$''3 litres ''$32 litres @# litres
010100020021000, '2R of +#/3'2 e%ualsa) b) c) d) e)
22/@32$' 13$*'+ #/2@2$@2 13*/'+0$'# #2/@2$
010100020021000A An elastic is stretched by +'R to a length of #$+ m$ (alculate the original length$ a) b) c) d) e)
3$11+ 0$0'* $@++ 2$@03 +$'*#
m m m m m
010100020021000D '3 is what percent of 2'0? a) b) c) d) e)
1$2*R 2$2R 0$2R 2$23R $12R
0#0#00020033000 (hange the following fractions to percentagesdecimal places)
1)
I 66666 I
E
6666666666 R
2)
I 66666 I
E
6666666666 R
I 3) 66666 E 6666666666 R I $5>577>7<:5 A1"1//1) A2"#/+/1) 1"2/#/1) 2"'/+/1) (1"/*/1) (2"3/@/1) $57<:5 A3E"A1A2)L100K
"8ound to 3
29
3E12L100K (3E(1(2L100K AE":7"A3L100H$#))100K E:7"3L100H$#)100K (E:7"(3L100H$#)100K $8,5>B75 .Answer 1 E./A-3/$01 .Answer 2 E./-3/$01 .Answer 3 E./(-3/$01 00#000200++000 (onvert the following fractions into percentages$ 1)
IIII
E R
2)
IIII
E R
3)
IIII
E R
)
IIII
E R
#)
IIII
E R
')
IIII
E R
*)
IIII
E R
+)
IIII
E R
$5>577>7<:5 :>J1"2/20/1) D,J1"2#/0/1) :>J2"2/20/1) D,J2"2#/0/1) :>J3"10/20/1) D,J3"2#/'0/1) :>J"30/#0/1) D,J"'0/@0/1) :>J#"2/10/1) D,J#"12/20/1) :>J'"2/'/1) D,J'"+/12/1) :>J*"2/20/1) D,J*"2#/30/1) :>J+"2/20/1) D,J+"22/30/1) $57<:5 A:51E:>J1D,J1L100K A:52E:>J2D,J2L100K A:53E:>J3D,J3L100K A:5E:>JD,JL100K A:5#E:>J#D,J#L100K A:5'E:>J'D,J'L100K A:5*E:>J*D,J*L100K A:5+E:>J+D,J+L100K $8,5>B75 .Answer 1 E./A:51-3/$01 .Answer 2 E./A:52-3/$01 .Answer 3 E./A:53-3/$01 .Answer E./A:5-3/$01 .Answer # E./A:5#-3/$01 .Answer ' E./A:5'-3/$01 .Answer * E./A:5*-3/$01 .Answer + E./A:5+-3/$01
30
0#03000200++0001@20K3K110K320K1*#0K3@#0K11F1K111200K (onvert the following percentages into fractions$ "8educe to lowest terms) 1)
@#R
E
2)
*#R
E
3)
10R
E
)
1#R
E
#)
3R
E
')
*+R
E
*)
100R
E
+)
##$#R E
0#0#00020021000 A steam line will increase in length by I$IIR when heated to operating temperature$ Determine the original length of the line/ if it increased in length by II$I cm when heated$ "8ound your answer to 3 decimal places)$ Answer E cm $5>577>7<:5 !8(7"1/3/0$01) 578("#/10/0$1) $57<:5 BQ7=E578(L100!8(7K $8,5>B75 .Answer E./BQ7=-3/$01
Ratio and Proportion 010100020021000, What is the ratio between a mass of 3' g and @2+ B? a) b) c) d) e)
232 to @ #$' 0$0++ B $#@ :one of the above
010100020021000 What is the ratio between *# B and 1$# B in lowest terms? a) b) c) d) e)
*# to 1# #0 to 1 0$2 # to 1 :one of the above
31
010100020021000 What is the ratio between a mass of /#00 g and 1#0 g? a) b) c) d) e)
20 30 0 #0 ##
to to to to to
1 1 1 1 1
010100020021000A What is the ratio between the lengths of two pipes that are 1#0 m and 100 m? a) b) c) d) e)
1$# 2$# 3$# $# #$#
to to to to to
1 1 1 1 1
010100020021000D What is the ratio between the areas of two obects that are 2# s%uare metres and # s%uare metres? a) b) c) d) e)
2 3 # '
to to to to to
1 1 1 1 1
010100020021000 What is the ratio between the temperatures 1# degrees ( and # degrees (? a) b) c) d) e)
2 3 # '
to to to to to
1 1 1 1 1
010100020021000, What is the ratio between the volumes 2 cubic metres and 3 cubic metres? a) b) c) d) e)
# ' * +
to to to to to
1 1 1 1 1
010100020021000, ind the last "&) term of the proportion a) b) c) d)
2 3 10 11
+- E 2'-&
32
e)
13
010100020021000( ind the second "&) term of the proportion a) b) c) d) e)
1 2 3 #
010100020021000, ind the first "&) term of the proportion a) b) c) d) e)
&-1+#0 E 2#-3*
@#0 10#0 11#0 1200 12#0
010100020021000D ind the third "&) term of the proportion a) b) c) d) e)
21-& E 3#-#
2*-1# E &-3'0
#0 ##0 '#0 '+ *#'
010100020021000A A certain chemical mi&ture should be in the ratio of parts A/ ' parts / and 2 parts ($ f a 1# g batch is to be mi&ed/ what %uantities in gs of A/ / and ( should be used in the batch? a) b) c) d) e)
A A A A A
E E E E E
#/ / #/ $#/ 3$#/
E E E
*$#/ and ( '/ and ( E '/ and ( E E '$#/ and E #$#/ and
E 2$# # ( E ( E '
010100020021000D n the following e&pression -+--2- which term"s) is"are) the e&treme"s)? a) b) c) d) e)
+ only oth + and 2 only and oth 2 and
010100020021000A n the e&pression +-&--1'-+/ & e%ualsa) b)
1'
33
c) d) e)
2$# 32 1'
010100020021000 A chemical mi&ture should be in the ratio of @ parts A/ 2 parts and # parts ($ A ' g batch is to be mi&ed$ What %uantity of A is re%uired? a) b) c) d) e)
#2$3' g 3' g 20 g + g 2$2# g
010100020021000( (oncrete must be mi&ed with the ratio of # parts cement/ 3 parts gravel and parts water$ f ' tons of concrete is to be mi&ed how much gravel is re%uired? a) b) c) d) e)
2$ tons 2$# tons 1$# tons 2 tons 1/+'# tons
010100020021000A !ublic swimming pools re%uire 3 parts chlorine li%uid and 2 parts salt water to every 100 parts water to ill bacteria$ =ow much chlorine li%uid is re%uired in a /000 B pool? a) b) c) d) e)
11$2@ B *'$1@ B 100 B 3/+0@$#2 B +@$23 B
010100020021000D f mass is inversely proportionate to cost then a) b) c) d) e)
as as as as as
mass mass cost mass cost
increases increases decreases increases increases
cost will double cost will increase directly mass will decrease cost will decrease the mass will double
010100020021000, A gear wheel '# cm in diameter revolving at 22# rmin drives a wheel +# cm in diameter$ What is the speed of the second gear? a) b) c) d)
3$' rmin 1#0 rmin 20'$3@ rmin @*$# rmin
34
e)
1*2$0' rmin
010100020021000 A gear has 1/000 teeth and revolves at #0 rmin$ gear has 32 teeth$ =ow fast does it turn? a) b) c) d) e)
7he driven
12$2 rmin 1/#'2$# rmin '0@$+ rmin '0 rmin 3@0$2 rmin
010100020021000, f 1# tonnes of coal cost S3'0/ what will 2* tonnes cost at the same rate per tonne? a) b) c) d) e)
2## 3# '2# *23 '+
010100020021000, f 2# worers can do a piece of wor in 30 days/ in how many days can 3# worers do the same wor? a) b) c) d) e)
20$00 1+$00 20$2# 1@$1# 21$3
010100020021000A f bell metal is 2# parts copper to 12 parts tin/ what is the weight of each in a bell weighing 1+#0 g? a) b) c) d) e)
copper copper copper copper copper
E E E E E
1/2#0 1/1#2 1/0#0 1/3#0 1/23#
g g g g g
and and and and and
tin tin tin tin tin
E E E E E
'00 ##0 #'# '2# '#0
g g g g g
010100020021000, A gear wheel 330 mm in diameter and revolving at a speed of 200 rpm drives a wheel 1#0 mm in diameter$ What is the speed in rpm of the second gear? a) b) c) d) e)
@1 100 330 00 0
010100020021000D A supply fan is driven by an electric motor by means of
35
G6belts$ 7he pulley on the motor shaft is @0 mm in diameter and rotates at 1/+00 rpm$ 7he diameter of the pulley on the fan shaft is 300 mm$ What is the speed of the fan in rpm? a) b) c) d) e)
2/000 1/+00 @00 #0 #0
010100020021000( A driving gear has '0 teeth and turns at *#0 rpm$ 7he driven gear has @0 teeth$ What is the speed of the driven gear in rpm? a) b) c) d) e)
1/12# 1/000 #00 #0 00
Equations and ransposition 020100020021000( 2 A E "!i)r is the same as2 a)
1 E A"!i)r 2
b)
A
E "!i)r
c)
s%r"A!i) E r 2
d)
"A!i)
E s%r"r)
e)
s%r"A) E "!i)r
020100020021000, n the e%uation 3' E 12 H "1#t) 6 '/ t e%ualsa) b) c) d) e)
3 62$2 1$* 62$+ 2
020100020021000 n the e%uation 3 & s%r"t) E 3@/ t e%ualsa) b) c)
13 1'@ 2'
36
d) e)
s%r"13) @
020100020021000D 5olve the following e%uation for b/ 2 Mb 6 "% H s)N % E s a) b) c) d) e)
s%r"10s H %) s%rM6%s "% H s)N s%r"2s) s%rM%s H "% H s)N s%r"+s 6 %)
020100020021000D 5olve the following e%uation for m/ a) b) c) d) e)
y E mt H c
mt 6 y y "t H c) ym 6 c "y 6 c) t y 6 t 6 c
020100020021000D 5olve the following e%uation for r/ a) b) c) d) e)
3 M"!i)r N 3 E G
cubed rootM"!i)G 3N G "!i) !i 3G cubed rootM3G "!i)N 3G
020100020021000 2 5olve s E ut H 12 at a)
s%rMs 6 "at 2)N
b)
Ms 6 "at
c)
2 "sat)
for u
2 2N t
2 d)
s 6 12 at
e)
s H 12 at
6 t
020100020021000A 5olve the following e%uation for A/
a)
2 "2b% ) 6 B
2 b E "% +) "AHB)
37
b)
2 "b2% ) 6 B
c)
s%r"b+%) 6 B
d)
2 "b2% ) 6 B
e)
2 "b2% ) 6 B
020100020021000, 5olve the following e%uation for r/
a)
'y sa
b)
@ # 'y 6sa
c)
@ # 'y 6 "b s)
d)
'a
e)
@ # 'y sa
@ # s E "'y a r)
61 s
020100020021000( 5olve the e%uation
a)
2 s%r"v b%rwy9)
b)
2 v b%rwy9
c)
Ms%r"wy9b%)Nv
2 2 r v b%wy9
2 d)
wv
e)
2 s%r"v bwy9%r)
010100020021000D f y H + E 1/ then y a) b) c) d) e)
3 # ' *
E 1
for r$
38
010100020021000( f y 6 # E 3/ then y E a) b) c) d) e)
' * + @ 10
010100020021000 f 3 y E '/ then y E a) b) c) d) e)
1 2 3 #
010100020021000( f ' y E 2/ then y E a) b) c) d) e)
1 2 3 #
010100020021000 f 3 y H E 10/ then y E a) b) c) d) e)
1 2 3 #
010100020021000D f y H # 6 * E 2 y H '/ then y E a) b) c) d) e)
1 2 3 #
010100020021000D f 13 y H 12 E * y H 3'/ then y E a) b) c) d) e)
1 2 3 #
020100020021000,
39
f # y E 2#0 2 y/ then y E a) b) c) d) e)
1 2 3 #
020100020021000( 2 f y 2y E '/ then y E a) b) c) d) e)
1 2 3 #
020100020021000( f + E s%r"y)/ then y E a) b) c) d) e)
12 1 1' 1+ 20
020100020021000 2 2 f y E "# & 22) / then y E a) b) c) d) e)
10$# 110 120 1/200 12/100
00#0002002000 5olve for .:.-
1)
I & I & : & I II E 6666666666666 IIIII
Answers1) E 2) E $5>577>7<:5 :>J1"2/@/1) :>J2"2/@/1) :>J3"2/@/1) :>J"11/@@/1) :>J#"11/@@/1) :>J'"11/@@/1)
2)
II & II IIIII$IIIIII E 66666666666 : s%uared
40
:>J* :>J+ $57<:5 :>J*E:>JL:>J#:>J1LL2K :>J+E:>J1L:>J2L:>J3L2$#K A:51E:>J'L:>J+:>J1:>J2:>J3K A:52E":>JL:>J#:>J*)LL0$#K $8,5>B75
.Answer 1 E./A:51-3/$01 .Answer 2 E./A:52-3/$01
010100020021000( (onvert 32 degrees to (elsius/ if degrees ( E #@ "degrees 6 32)$ a) b) c) d) e)
' 1+ 0 100 @0
010100020021000A (onvert 212 degrees to (elsius/ if degrees ( E #@ "degrees 6 32)$ a) b) c) d) e)
100 1#0 200 2#0 300
010100020021000, (onvert 1/000 degrees to (elsius/ if degrees ( E #@ "degrees 6 32)$ a) b) c) d) e)
100 2#0 #0 #30 #3+
010100020021000A (onvert 60 degrees to (elsius/ if degrees ( E #@ "degrees 6 32)$ a) b) c) d) e)
60 630 620 610 61#
010100020021000 (onvert #0 degrees (elsius to ahrenheit/ if degrees E @# degrees ( H 32$
41
a) b) c) d) e)
1+ 122 130 1#0 1##
010100020021000( (onvert 100 degrees (elsius to ahrenheit/ if degrees E @# degrees ( H 32$ a) b) c) d) e)
23+ 220 212 1+0 120
010100020021000( (onvert 63# degrees (elsius to ahrenheit/ if degrees E @# degrees ( H 32$ a) b) c) d) e)
61$+ 610 631 620 63#
010100020021000D (onvert 6'0 degrees (elsius to ahrenheit/ if degrees E @# degrees ( H 32$ a) b) c) d) e)
6#0$ 6#$# 62$# 6*'$0 6*2$2
010100020021000( f ( E #@ " 6 32)/ then E a) b) c) d) e)
#@ #@ @# @# @#
( H 32 ( 6 32 ( H 32 "( H 32) "( 6 32)
020100020021000 f A E 12 b & h/ then h E a) b) c) d) e)
12 2 A 12 2 A 2 b
A A b
b b b A
42
020100020021000D 2 f A E "!i) r / then r E a)
s%r"A & !i)
b)
"A !i)
2
2 c)
"A & !i)
d)
s%r"A !i) 2
e)
"!i A)
020100020021000, f , E & 8/ then 8 E a)
, &
b)
,
c)
", )
2 2 d)
", & )
e)
,
!ength, !ines, and Simple Plane Figures 010100020021000 A fathom is which type of measurement? a) b) c) d) e)
5urveyors measure :autical measure ,nglish measure 5 measure mperial measure
010100020021000, 320 rods is e%ual toa) b) c) d) e)
1 ilometre 1 cable @+' nots 3@ furlongs 1/*'0 yards
010100020021000(
43
(onvert # miles/ ' yards/ @ feet to metres$ a) b) c) d) e)
2+*$+# m +/32'$#3 m +/0#$@# m #3@$'' m '/2+3$2 m
010100020021000( 100 m E ft$ a) b) c) d) e)
300 310 32+ 3#0 3'0
010100020021000A *# mm E in$ a) b) c) d) e)
3 # ' *
010100020021000D 100 m E miles$ a) b) c) d) e)
0 #0 '0 '2 '#
010100020021000D #0 ft is m$ a) b) c) d) e)
12$2 13$3 2$3 1#$2 1'$*#
010100020021000, 1#0 m is yd$ a) b) c) d) e)
1# 1 #0 100 1'
010100020021000, 2# cm is in$
44
a) b) c) d) e)
#$# '$2 *$#' +$23 @$+
010100020021000D 7he following is a property of perpendicular linesa) b) c) d) e)
they they they they they
are always vertical form less than a 30 degree angle form more than a 110 degree angle form right angles form acute angles
010100020021000A Which of the following statements about parallel lines is false? a) b) c) d) e)
they they they they they
can cross can run hori9ontally never cross can run vertically are always the same distance apart
010100020021000D Bines which are e&actly the same distance apart at all points are said to be to each other$ a) b) c) d) e)
perpendicular tangential e%ual parallel coincide
010100020021000A Bines at right angles to each other are said to be to each other$ a) b) c) d) e)
perpendicular tangential e%ual parallel coincide
010100020021000, When two straight lines meet or cross each other/ they form $ a) b) c) d) e)
parallel lines tangential lines perpendicular lines e%uilateral lines an angle
45
010100020021000, What type of triangle has three sides of e%ual length? a) b) c) d) e)
scalene obtuse isosceles right triangle e%uilateral
010100020021000 7he sum of the angles of a triangle isa) b) c) d) e)
3'0 degrees 1+0 degrees 30 degrees '0 degrees @0 degrees
010100020021000A n a triangle/ if the three sides are of e%ual length/ it is aan triangle$ a) b) c) d) e)
e%uilateral isosceles right scalene obtuse
010100020021000 AAn triangle has two side of e%ual length and a third side that is longer or shorter$ a) b) c) d) e)
e%uilateral isosceles right scalene obtuse
010100020021000( n a triangle/ if one of the angles is @0 degrees/ this is aan triangle$ a) b) c) d) e)
e%uilateral isosceles right scalene obtuse
010100020021000D AAn triangle has no two sides or angles e%ual and no right angle$ a) b) c) d) e)
e%uilateral isosceles right scalene obtuse
46
010100020021000, AAn triangle contains an angle greater than @0 degrees$ a) b) c) d) e)
e%uilateral isosceles right scalene obtuse
010100020021000D f a %uadrilateral has angle measurements of +# degrees/ 3' degrees and 110 degrees the last angle e%ualsa) b) c) d) e)
3'0 degrees @0 degrees 1+2 degrees 12@ degrees 1+0 degrees
010100020021000D 7he following %uadrilateral has no sides parallela) b) c) d) e)
7rape9oid 8homboid 8hombus 7rape9ium 5calene triangle
010100020021000( A 8hombus has one side measuring ' m$ the other 3 sides? a) b) c) d) e)
What are the lengths of
mpossible to find with the above information ' m/ 3 m/ 3 m ' m/ ' m/ ' m ' m/ 12 m/ 12 m # m/ 2 m/ + m
010100020021000 Tuadrilaterals are figures that have straight sides$ a) b) c) d) e)
3 # ' +
010100020021000D 7he following obects are %uadrilaterals 1) 2) 3)
s%uare triangle trape9oid
47
) a) b) c) d) e)
1/ 1/ 1/ 1/ 2/
rhombus 2/ 2/ 2/ 3/ 3/
3/ 3
010100020021000, When all the angles of a %uadrilateral are added together their sum is degrees$ a) b) c) d) e)
@0 120 1+0 320 3'0
010100020021000A A is a four sided figure with all four sides of e%ual length and all angles right angles$ a) b) c) d) e)
s%uare rhombus rectangle trape9oid rhomboid
010100020021000, A is a four sided figure with the opposite sides parallel/ but the angles are not right angles$ a) b) c) d) e)
s%uare rhombus rectangle trape9oid rhomboid
010100020021000 A is a four sided figure in which the four sides are of e%ual length but the angles are not right angles$ a) b) c) d) e)
s%uare rhombus rectangle trape9oid rhomboid
010100020021000D A is a four sided figure having only two sides parallel$ a) b) c) d)
s%uare rhombus rectangle trape9oid
48
e)
rhomboid
010100020021000, A is a four sided figure having no two sides parallel$ a) b) c) d) e)
s%uare rhombus rectangle trape9oid trape9ium
010100020021000 A is a four sided figure in which all the angles are right angles but opposite sides are e%ual and adacent sides are une%ual$ a) b) c) d) e)
rhombus rectangle trape9oid rhomboid trape9ium
Areas and "olumes o# Solids 010100020021000( What is the surface area of a cylinder with a diameter of cm and height of ' cm? "include the areas of the ends) a) b) c) d) e)
*#$ s%uare cm 2#$1 s%uare cm 100$# s%uare cm ++$0 s%uare cm 1/+@2$# s%uare cm
0#0#000200#1000 ind the total surface area of a closed cylinder having a diameter of II m and II mm and a length of II m and II mm$ "8ound the answer to 3 decimal places) Answer E s%uare metres $5>577>7<:5 D1"1/10/1) D2"10/@0/#) B1"11/1#/1) B2"10/@0/#) $57<:5 D3ED1H"D21000)K B3EB1H"B21000)K A1E3$1LD3LB3K A2E2L$*+#LD3LL2K A7EA1HA2K
49
$8,5>B75 .Answer E./A7-3/$01 0#0#00020021000 (alculate the diameter of a circle having an area of III s% cm"8ound the answer to 3 decimal places) Answer E cm $5>577>7<:5 A"100/@00/02) $57<:5 DE5T8"A$*+#)K $8,5>B75 .Answer E./D-3/$01 0#0#00020021000 Determine the area of a circle having a radius of III$I cm"8ound the answer to 3 decimal places) Answer E s%uare metres $5>577>7<:5 8"1#/00/$#) $57<:5 AE3$1L8LL210000K $8,5>B75 .Answer E./A-3/$01
010100020021000D A cylinder has a surface area of 1# s%uare metres "including the areas of the ends) and a diameter of @# cm$ What is the height of the cylinder in metres? a) b) c) d) e)
##$1 #$#1 ##$#1 $##1 /##1
010100020021000A A cylinder has a surface area of 10 s%uare metres "including the areas of the ends) and a diameter of *# cm$ What is the height of the cylinder in metres? a) b) c) d) e)
3$+'@ 3+$'@ 3+'$@ 0$3+* 3/+'@
010100020021000 A cylinder has a surface area of 2# s%uare metres "including the areas of the ends) and a diameter of 100 cm$ What is the height of the cylinder in metres? a) b)
*$#*+ *$#*+
50
c) d) e)
*#$*+ *#*$+ 0$*#+
010100020021000( f the diameter of a cylinder is 1$# m and the height is 223 cm/ what is the surface area in s%uare m? "nclude the areas of the ends) a) b) c) d) e)
1$03 10$3 1$03 10$3 0$10
010100020021000D f the diameter of a cylinder is 2$3 m and the height is 33 cm/ calculate the surface area in s%uare metres$ "nclude the areas of the ends) a) b) c) d) e)
3/2$3 32$3 3$23 32$3 0$32
010100020021000, f the diameter of a cylinder is 0$+* m and the height is @+ cm/ calculate the surface area in s%uare metres$ "nclude the areas of the ends) a) b) c) d) e)
3/+'*$# 3+'$*# 3+$'*# 0$3+'+ 3$+'*#
010100020021000, ind the surface area of a sphere with a radius of 3 m$ a) b) c) d) e)
#2$2 s% metres 2+$2' s% metres 3*$'+ s% metres *$1 s% metres 113$0 s% metres
010100020021000A (alculate the surface area of a sphere in s%uare cm if the radius is ' cm$ a) b) c) d)
#2$3+@ /#23$+@ $#23+@ #$23+@
51
e)
0$#23@
010100020021000( (alculate the surface area of a sphere in s%uare cm if the radius is * cm$ a) b) c) d) e)
'/1#*$#2 '1$#*#2 '1#$*#2 '$1#*#2 0$'1#*#
010100020021000D (alculate the surface area of a sphere in s%uare cm if the radius is # cm$ a) b) c) d) e)
0$311' 3$11#@ 31$1#@ 31$1#@ 3/11$#@
010100020021000 (alculate the surface area of a sphere in s%uare cm if the radius is cm$ a) b) c) d) e)
2/010$'2 201$0'2 20$10'2 2$010'2 0$2010'
010100020021000A A cylinder has a surface area "including the areas of the ends) of 1+0$' s% cm and a diameter of # cm$ What is the height of the cylinder? a) b) c) d) e)
@$0 cm 2+$3 cm 11$# cm #$0 cm 0$3 cm
010100020021000A A sphere has a surface area of 1/2#' s% cm$ diameter? a) b) c) d) e)
What is its
20 cm 10 cm 31 cm 1#* cm 100 cm
010100020021000A What is the surface area of a pressure vessel in the form of a cylinder with each end in the form of a hemisphere/ if the
52
overall length is 12 m and the diameter is 3 m? a) b) c) d) e)
113$0@ s% m 11$3 s% m +$+2 s% m @+$@ s% m 10'$3 s% m
0#0#0002002000 (alculate the area of a rectangle with sides of II cm by II cm- "8ound the answers to 3 decimal places) 1) give the area in s%uare centimetres 2) give the area in s%uare inches Answers1) E s%uare centimetres 2) E s%uare inches $5>577>7<:5 B"#/#0/2) W"/30/1) $57<:5 A1EBLWK A2EA1L$1##K $8,5>B75 .Answer 1 E./A1-3/$01 .Answer 2 E./A2-3/$01
010100020021000D What is the total surface area in s%uare cm of a closed cylinder that is 12 cm high and 3 cm in diameter? a) b) c) d) e)
0$12*23 1$2*23 12$*23 12*$23 1/2*2$3
010100020021000 ind the lateral area in s%uare m of a steam pipe #0 cm in diameter and 2$# m in length$ a) b) c) d) e)
$32 3$@3 $@1 0$20 $12
010100020021000( ind the amount of insulation re%uired in s%uare m to completely cover a chlorine storage sphere having a diameter of + m$ a)
+0$2+
53
b) c) d) e)
02$12 201$0'2 100$#31 #0$2'#
010100020021000D (alculate the area of insulation in s%uare m re%uired to cover a boiler drum which is e%uipped with hemispherical heads$ 7he diameter of the drum is + cm and m in length from one end to the other$ a) b) c) d) e)
2#$#' 12$**3 11$**3 10$##' #$2*+
010100020021000D What is the volume of a cylinder with a diameter of @ m and a height of 1# m? a) b) c) d) e)
10'$0 cubic metres 3/+1*$0 cubic metres 23+$' cubic metres @#$3 cubic metres 1/#@0$ cubic metres
010100020021000 A cylinder with a diameter of # m and a height of + m is half full of li%uid$ What volume does the li%uid occupy? a) b) c) d) e)
1#*$1 cubic cm *+$# cubic cm 3@$3 cubic cm 1@$' cubic cm 1#$* cubic cm
0#0#0002002000 (alculate the volume of a cylindrical tan II m in diameter and II m in length$ Qive the answers in cubic metres and cubic decimetres$ "8ound to 3 decimal places) Answers1) E cubic metres 2) E cubic decimetres $5>577>7<:5 D"1/12/1) B"#/20/1) $57<:5 >1E$*+#L"DLL2)LBK >2E1000L>1K $8,5>B75 .Answer 1 E./>1-3/$01 .Answer 2 E./>2-3/$2
54
0#0#00020021000 (alculate the volume of a cylinder which has a diameter of III cm/ and a height of I$II m$ "8ound answer to 3 decimal places) Answer E cubic metres $5>577>7<:5 D"10/00/2) ="$0#/+/$01) $57<:5 GE$*+#L"D100)LL2L=K $8,5>B75 .Answer E./G-3/$02
0#0#00020021000 ind the height of a cylinder where the area of the end is I$I s%uare metres and the volume is III$I cubic metres$ "8ound the answer to 3 decimal places) Answer E m $5>577>7<:5 A"1$#/@/$#) G"20/2'0/$#) $57<:5 =EGAK $8,5>B75 .Answer E -./=-3/$01 010100020021000D ind the volume in cubic metres of a cylindrical tan that is 2 m in diameter and 1 m long$ a) b) c) d) e)
1 2 3 #
010100020021000( ind the volume in cubic metres of a cylindrical tan that is ' m in diameter and 12 m long$ a) b) c) d) e)
13@$2@3 23@$2@3 33@$2@3 3@$2@3 #3@$2@3
010100020021000A ind the volume in cubic metres of a cylindrical tan that is 3 m in diameter and 1' m long$ a) b) c)
113$0@+ 213$0@+ 313$0@+
55
d) e)
13$0@+ #13$0@+
010100020021000 ind the volume in cubic metres of a cylindrical tan that is m in diameter and 1* m long$ a) b) c) d) e)
113$'2@ 213$'2@ 313$'2@ 13$'2@ #13$'2@
010100020021000, ind the volume in cubic metres of a cylindrical tan + m in diameter and 1# m long$ a) b) c) d) e)
3#3$@+ #3$@+ ##3$@+ '#3$@+ *#3$@+
010100020021000D What is the volume of a sphere with a radius of ' m? a) b) c) d) e)
113$0 cubic cm 1#0$*2 cubic cm */23$#' cubic cm @0$32 cubic cm *#$3' cubic cm
010100020021000D f the radius of a sphere is # cm/ the volume in cubic cm is a) b) c) d) e)
0$#23 #$232 #2$32 #23$2 #/232
010100020021000, f the radius of a sphere is + cm/ the volume in cubic cm is a) b) c) d) e)
0$21 2$1 21$ 21$ 2/1
010100020021000A f the radius of a sphere is * cm/ the volume in cubic cm is
56
a) b) c) d) e)
1/3* 13$* 1$3* 1$3* 0$13*
010100020021000( f the radius of a sphere is 2 m/ the volume in cubic metres is a) b) c) d) e)
0$33# 3$3@ 33$@ 33$@ 3/3@
010100020021000D f the radius of a sphere is 3 m/ the volume in cubic m is a) b) c) d) e)
0$113 1$131 11$31 113$1 1/131
010100020021000 What is the volume in cubic m of a sphere with a radius of metres? a) b) c) d) e)
2/'+1 2'+$1 2'$+1 2$'+1 0$2'+
010100020021000D What is the radius of a sphere in cm if the volume is @$#' cubic cm? a) b) c) d) e)
0$0022+ 0$022*@ 0$22*@ 2$2*@ 22$*@
010100020021000 f the volume of a sphere is 2/123 cubic cm/ its radius in cm is a) b) c) d) e)
@ + * ' #
010100020021000D f the volume of a sphere is *#' cubic cm/ its radius in cm
57
is a) b) c) d) e)
2$'# 3$'# $'# #$'# '$'#
010100020021000( Which of the following e%uations correctly e&presses the volume of a hemisphere?
a)
3 G E " L !i L r )3
b)
3 G2 E " L !i L r )3
c)
3 G E "2 L !i L r )3
d)
32 G E " L !i L r )3
e)
G2 E "23) !i L r
2
010100020021000A A pressure vessel is in the form of a cylinder with each end in the form of a hemisphere$ 7he vessel operates at 1/100 !a$ f the overall length is 12 m and the diameter is 3 m/ what is the volume of the pressure vessel? a) b) c) d) e)
#'$## cubic metres 113$1 cubic metres 1@*$@2 cubic metres **$*# cubic metres +$+ cubic metres
0#0#00020021000 (alculate the height of a rectangular bo& which has a length of II cm and a width of II cm$ 7he volume of the bo& is IIII cubic cm$ "8ound the answer to 3 decimal places) Answer E cm $5>577>7<:5 B"20/0/#) W"10/20/1) G $57<:5 =E10K GE=LBLWK $8,5>B75 .Answer E./=-3/0$01 0#0#00020021000
58
(alculate the height of a rectangular bo& II cm long/ II cm wide and a volume of IIIII cu cm$ "8ound to 3 dec$ places) Answer E cm $5>577>7<:5 B"0/*0/2) W"10/3#/1) G $57<:5 =E2#K GE=LBLWK $8,5>B75 .Answer E./=-3/0$01 0#0#00020021000 (alculate the height of a rectangular tan filled with water holding IIIII litres$ 7he length of the tan is I$I m and the width is I$I m$ "8ound to 3 decimal places) Answer E m $5>577>7<:5 ("10000/#0000/#00) B"2//$2) W"1/2/$2) $57<:5 GE(1000K =EG"BLW)K $8,5>B75 .Answer E./=-3/$01 0#0#00020021000 (alculate the height of a cylindrical tan filled with water having a mass of IIII$I g$ 7he diameter of the tan is I$I m$ "8ound the answer to 3 decimal places) Answer E m $5>577>7<:5 J"1#00/2@00/$#) D"1/#/$2) $57<:5 GEJ1000K =EG"$*+#LDLL2)K $8,5>B75 .Answer E./=-3/$01 0#0#000200#2000 (alculate the mass of water in g and tonne contained in a rectangular tan with the following inside dimensionswidth of II$I height of II$I length of II$I
metres metres metres
"8ound answers to 3 decimal places) Answers1) E g
59
2) E tonne $5>577>7<:5 W"$/10/$2) ="2/20/$2) B"/12/$2) $57<:5 JEWL=LBL1000K 7EJ1000K $8,5>B75 .Answer 1 E./J-3/$01 .Answer 2 E./7-3/$01 010100020021000( 7he diameter of a cylindrical fuel tan is 2 m and its height is 10 m$ 7he volume of the tan in cubic metres is a) b) c) d) e)
0$31 3$12 31$2 31$2 3/12
010100020021000D 7he diameter of a cylindrical fuel tan is m and its height is 12 m$ 7he volume of the tan in cubic metres is a) b) c) d) e)
0$1#1 1$#1 1#$1 1#1 1/#11
010100020021000A 7he diameter of a cylindrical fuel tan is # m and its height is 1# m$ 7he volume of the tan in litres is a) b) c) d) e)
2@/#2# 2@/#2$# 2/@#$2# 2@$#2# 2@$#2#
010100020021000, A tan was three6fourths full of water$ After running off 1/000 litres it was one6fifth full$ 7he capacity of the tan in litres is a) b) c) d) e)
1/333$333 #/000 '/333$333 3/'''$''* 1/+1+$1+2
010100020021000( A cast iron ball has a 32 cm radius and a mass of *$21 grams per cubic cm$ 7he mass in g is
60
a) b) c) d) e)
@$+@'3 @+$@'3 @+@$'3 @/+@'$3 @+/@'3
010100020021000A A cast iron ball is * cm in diameter and has a mass of *$21 grams per cubic cm$ 7he mass of the ball in g is a) b) c) d) e)
1$2@# 12$@# 12@$# 1/2@# 12/@#0
010100020021000, A steel tube has an outside diameter of 1# cm/ an inside diameter of 13 cm/ and is 3$* m long$ 7he volume of the steel contained in the tube in cubic cm is a) b) c) d) e)
1$'2*3 1'$2*3 1'2$*3 1/'2*$3 1'/2*3
010100020021000D A positive displacement pump has a 1# cm diameter cylinder and a stroe of 30 cm$ =ow much water in litres will it discharge in 10 minutes if it maes @' stroes per minute? a) b) c) d) e)
#$0+@ #0$+@ #0+$@ #/0+@$ #0/+@
Introduction to Basic $echanics 010100020021000D Which of the following e&les is not an e&le of a dynamic body? a) b) c) d) e)
a body that is accelerating a body that is decelerating a body that is orbiting at a constant velocity around a planet a body moving at a uniform velocity along a straight line a body colliding with another body and deflecting in a new direction
010100020021000(
61
Which of the following is an e&le of a static body? a) b) c) d) e)
a body that is accelerating a body that is decelerating a rigid body that is at rest a body that is moving at a uniform velocity along a straight line a body colliding with another body and deflecting in a new direction
010100020021000D Any action on a body which tends to change its si9e/ shape or its state of motion is defined asa) b) c) d) e)
displacement acceleration volume force mass
010100020021000, 7he 5 unit for mass is2 a) b) c) d) e)
ms m : C g
010100020021000 Attraction to the centre of the earth is calleda) b) c) d) e)
centrifugal force gravity mass friction distance
010100020021000( 5i& g would be a measure of an obect;sa) b) c) d) e)
weight volume mass length time
010100020021000D What is the force of gravity e&erted on a person whose mass is *# g? a) b) c) d)
*$# *# 1'# *3#$*#
: C : :
62
e)
*#0 :
010100020021000 Jass may be measured in a) b) c) d) e)
C g elvin Cg :m
010100020021000A n the 5 system/ the unit of force is the a) b) c) d) e)
newton JC g force wor done in Cs :m
010100020021000, What is the force of gravity e&erted on an obect having a mass of # tonnes? a) b) c) d) e)
$@0# @$0# @0$#0 @0$#0 @/0#0
: : : g :
010100020021000( 7he unit of force used in the 5 system is the a) b) c) d) e)
ilogram Coule :ewton Watt :ewton metre
010100020021000D 7he 5 unit for weight is a) b) c) d) e)
g lb ip :ewton g m
010100020021000( 7he rate of change of velocity isa) b) c) d) e)
mass force acceleration weight displacement
63
010100020021000 ms is the 5 unit fora) b) c) d) e)
acceleration velocity force mass weight
010100020021000A 7he unit of acceleration in the 5 system is 2 a)
ms
b)
ms
c)
2 m s
d)
ms
e)
mh
010100020021000, 7he change of position "in metres) per unit is a) b) c) d) e)
acceleration displacement volume force velocity
010100020021000 orce acting in a direction at right angles to a surface/ divided by the surface area/ is defined asa) b) c) d) e)
acceleration pressure weight surface area friction
010100020021000( 7he 5 unit for pressure is a)
:
b)
:m
c)
!a
d)
:m 3
64
e)
:m
010100020021000D A force of 120 : is e&erted uniformly over an area of 0$2 s%uare metres$ What is the pressure? a) b) c) d) e)
2 !a 20 !a '0 !a '00 !a ' !a
010100020021000D Which of the following statements is true if a person pushes with a force of 300 : on a roc and the roc does not move? a) b) c) d) e)
300 : of wor was done 300 C of wor was done 1#0 C of wor was done no wor was done 0$3 C of wor was done
010100020021000, 8ate of doing wor is defined asa) b) c) d) e)
any energy inetic energy potential energy wor power
010100020021000D 7he ability to do wor due to an obect;s motion is defined asa) b) c) d) e)
power potential energy force inetic energy weight
010100020021000 7he unit of measure of wor as used in the 5 system is a) b) c) d) e)
:ewtons Coules ilowatts foot pounds Coule metres
010100020021000D A mass of 00 g is moved a hori9ontal distance of 30 m due to a force of 300 :$ 7he amount of wor done is a) b)
@/000 C 12/000 C
65
c) d) e)
12/000 C @/000 C 3/000 C
010100020021000( 7he unit of measure of power used in the 5 system is a) b) c) d) e)
:ewtons Coules ilowatts wor Coules:ewton
010100020021000, A mass of 00 g is moved a hori9ontal distance of 20 m due to a force of #00 :$ 7he amount of wor done is a) b) c) d) e)
+/000 10/000 1/000 +/000 10/000
C C C C C
010100020021000A A mass of '00 g is moved a hori9ontal distance of 0 m due to a force of 00 :$ 7he amount of wor done is a) b) c) d) e)
1'/000 C 2/000 C 2/000 C 1/'00 JC 1'0 JC
010100020021000, 7he unit of measure of energy used in the 5 systems is a) b) c) d) e)
wor tor%ue ilowatt :ewton Coule
010100020021000D f a force of 200 : is moved a distance of 1# m in 1# seconds/ what power is developed? a) b) c) d) e)
3/000 W 1/#00 W 1/000 W 200 W 1#0 W
010100020021000A energy is the ability of a body to do wor by virtue of its position$
66
a) b) c) d) e)
!otential inetic Ja&imum Jinimum asic
010100020021000 energy is the ability of a body to do wor due to its motion$ a) b) c) d) e)
!otential inetic Ja&imum Jinimum asic
010100020021000A J & Q & = is the e%uation for energy$ a) b) c) d) e)
!otential inetic Ja&imum Jinimum asic
010100020021000 2 12 & J & G is the e%uation for energy$ a) b) c) d) e)
!otential inetic Ja&imum Jinimum asic
Forces and $oments 010100020021000D Which of the following statements about force is false? a) b) c) d) e)
orce is the push e&erted on a body$ orce may mae a body move$ orce is the pull e&erted on a body$ :o force is re%uired to stop a body$ orce may mae a body stop$
010100020021000 Which of the following is the 5 unit for force? 2 a)
ms
b)
:
67
2 c)
ft lbss
d)
g
e)
C
010100020021000( or a pivot or lever/ the product of orce multiplied by a perpendicular distance from the point of rotation/ is defined asa) b) c) d) e)
weight mass turning moment potential energy power
010100020021000, Joments are measured ina) b) c) d) e)
m C : W :m
010100020021000D 7he unit of measure for a of force is the newton metre$ a) b) c) d) e)
pressure ilogram Coule moment second
010100020021000 A force of 320 : acts at a perpendicular distance of m from a point$ What will be the turning moment produced? a) b) c) d) e)
+0 :m 1/2+0 :m 1/2+0 : 1/2+0 C 1/2+0 :m
010100020021000, f a system is in e%uilibrium then which of the following statements is true? a) b) c)
7he system will rotate clocwise 7he system will rotate counter clocwise 7he system will not rotate because no force is being e&erted
68
d) e)
7he system rotates under the largest force 7he system will not rotate because the moments in the system balance each other out
010100020021000A A bar is pivoted on the left end and a force is applied downwards on the right end$ 7he rotation of the bar will be a) b) c) d) e)
clocwise counter6clocwise neutral upward downward
010100020021000 A bar is pivoted on the right end and a force is applied downwards on the left end$ 7he rotation of the bar will be a) b) c) d) e)
clocwise counter6clocwise neutral upward downward
010100020021000 A # m long bar is pivoted on the left end and a force of 10 : is applied downwards on the right end$ 7he moment of force is a) b) c) d) e)
#0 :m counter6clocwise #0 :m clocwise 2 :m counter6clocwise 2 :m clocwise # :m clocwise
010100020021000( A 1# m long bar is pivoted on the right end and a force of # : is applied downwards on the left end$ 7he moment of force is a) b) c) d) e)
3 :m counter6clocwise 3 :m clocwise *# :m counter6clocwise *# :m clocwise *# : counter6clocwise
010100020021000D A # m long bar is pivoted on the right end and a force of 10 : is applied upwards on the left end$ 7he moment of force is a) b) c) d) e)
2 :m counter6clocwise 2 :m clocwise #0 :m counter6clocwise #0 :m clocwise #0 :m clocwise
010100020021000,
69
A 12 m long bar is pivoted on the right end and a force of 1#0 : is applied upwards on the left end$ 7he moment of force is a) b) c) d) e)
12$# :m 2# :m 1+0 :m 1/+00 :m 1$+ :m
010100020021000A A bar is pivoted on the right end and a force is applied upwards on the left end$ 7he rotation of the bar will be a) b) c) d) e)
clocwise counter6clocwise neutral upward downward
010100020021000 A bar is pivoted on the left end and a force is applied upwards on the right end$ 7he rotation of the bar will be a) b) c) d) e)
clocwise counter6clocwise neutral upward downward
010100020021000( A * m bar is pivoted at 2 m from the left end$ A force of '0 : is applied downward on the left end and a force of 20 : is applied downward on the right end$ What would be the clocwise and counter6clocwise moments and in which direction would the bar rotate? a)
d)
+0 :m counter6clocwise/ 100 :m clocwise/ counter6clocwise rotation '0 :m counter6clocwise/ 100 :m clocwise/ clocwise rotation 120 :m counter6clocwise/ 100 :m clocwise/ counter6clocwise rotation 120 :m counter6clocwise/ 100 :m clocwise/ clocwise rotation
e)
120 :m counter6clocwise/ 120 :m clocwise/ e%uilibrium
b) c)
010100020021000D A + m bar is pivoted at # m from the left end$ A force of 1# : is applied downward on the left end and a force of 20 : is applied downward on the right end$ What would be the clocwise and counter6clocwise moments and in which direction would the bar rotate? a)
'0 :m counter6clocwise/ *# :m clocwise/ counter6clocwise rotation
70
b) c) d) e)
'0 :m counter6clocwise/ *# rotation *# :m counter6clocwise/ '0 rotation *# :m counter6clocwise/ '0 counter6clocwise rotation '0 :m counter6clocwise/ '0
:m clocwise/ clocwise :m clocwise/ clocwise :m clocwise/ :m clocwise/ e%uilibrium
010100020021000 f a system of forces is in e%uilibrium then which of the following statements is true? a) b) c) d) e)
7he 7he 7he 7he 7he
system will rotate counter6clocwise$ total upward forces E the total downward forces$ system will rotate clocwise$ system will vibrate$ system will rotate temporarily$
010100020021000D f a system of forces is in e%uilibrium then which of the following statements is true? a) b) c) d) e)
7he system will rotate counter6clocwise$ 7he system will rotate clocwise$ 7he system will vibrate$ 7he total forces to the right E the total forces to the left$ 7he system will rotate temporarily$
0#0#0002001000 A lever is supported by a fulcrum placed at the mid6point of the lever$ A II g mass is suspended I$I m from the fulcrum$ What mass must be suspended at a point I$I m on the other side of the fulcrum in order to place the lever in e%uilibrium? "8ound off to 3 decimal places) Answer E g $5>577>7<:5 J1"10/#0/2) B1"1/3/$2) B2"2//$1) $57<:5 J2E"J1LB1)B2K $8,5>B75 .Answer E./J2-3/$01 010100020021000D A lever 1# metres in length is pivoted at one end$ A load of *#0 : is suspended from the other end$ What force must be applied at the midpoint of the lever in order to obtain e%uilibrium? a) b) c)
#0 : 112$# : 1#0 :
71
d) e)
1/#00 : 1/*2# :
010100020021000A A lever is 3 m in length and is pivoted at one end$ A load of +/000 : is suspended from the lever at a point 1 m from the pivot$ What force is necessary at the other end of the lever in order to obtain e%uilibrium? a) b) c) d) e)
2/'''$''* : 1/333$333 : 1'/000 : 2/000 : #/33' :
010100020021000 A lever 10 m in length is pivoted at one end and has a load of @00 g suspended from the other end$ What force must be applied at the mid6point of the lever to obtain e%uilibrium? a) b) c) d) e)
+/+2@ : 1*/'#+ : ++2$@ : /1$ : 22/#00 :
0#0#0002001000 A simply supported beam is II metres long and has a force of III newtons acting at I$I metres from the left hand support$ ind the load on the right hand support$ "8ound off to 3 decimal places) Answer E : $5>577>7<:5 B"3/*/1) J"10/#00/0) B1"1/2$#/$#) $57<:5 82EB1LJBK $8,5>B75 .Answer E./82-3/$02 0#03000200210001'0 R$01K A beam having a length of 20 metres is pivoted at its mid point$ A 200 newton load is located at a point # m from the right hand end of the beam$ A 300 newton load is located at a point + m from the right hand end$ n order for the beam to be in e%uilibrium/ what load is re%uired at the e&treme left end of the beam? Answer E newtons 0#0#00020101000 A crowbar is I metres long and has its pivot II centimetres from one end$ A force of IIIII newtons is applied to the end closest to
72
the pivot$ What effort must be applied to the other end of the crowbar to eep it in e%uilibrium? "8ound to 3 decimal places)
Answer E newtons $5>577>7<:5 B"2/+/1) !"30/+0/10) "2000/10000/1000) $57<:5 ,E"L!100)"B6!100)K $8,5>B75 .Answer E./,-3/$01
Simple $achines 010100020021000, Which of the following statements about simple machines is false? a) b) c) d) e)
7he machine receives energy by means of a single applied force$ 7he machine produces wor by means of a single output force$ Wor output is the product of the load and the distance moved by the load$ Wor input is greater than wor output$ 7he machine receives energy by means of 2 or more applied forces$
010100020021000, Which of the following statements about inclined planes is false? a) b) c) d) e)
A ramp is an inclined plane$ Wor input E wor output H wor wasted A screw is an inclined plane$ Wor is wasted in friction$ :o wor is wasted in producing heat$
010100020021000D A simple machine is one which receives energy by means of a single applied force/ and produces wor by means of $ a) b) c) d) e)
multiple output forces an energy form a distance moved a single output force a mechanical device
73
010100020021000 7he ratio of the load to the effort is calleda) b) c) d) e)
velocity ratio actual mechanical advantage efficiency power wor
010100020021000 A lever is used to move a load of 10 : by applying an effort of 1/000 :$ What is the mechanical advantage of the lever? a) b) c) d) e)
1 10 100 1/000 10/000
0#030002002000# R$01K@ R$1K A crowbar is 2 metres in length and has a fulcrum or pivot located 20 cm from one end$ What load can be lifted by the crowbar/ if a force of #/000 : is applied to the end furthest from the fulcrum? What is the mechanical advantage of the arrangement? Answers1) E : 2) E JA 010100020021000D ind the force necessary to ust move a mass of 2$# g on the end of a 3$' m lever which is pivoted 3 m from the left end$ a) b) c) d) e)
*#$1 : *'$++ : 2*$#0 : 123 : 1/20'$' :
010100020021000A A small hand pump is +#0 mm in length$ 7he fulcrum is attached in one end and the load plunger is located #0 mm from the fulcrum$ An effort force of '00 : is applied downward from the opposite end of the fulcrum$ ind the force e&erted by the load plunger and the mechanical advantage of the lever$ a) b) c) d) e)
10/200 : and 1* 1/020 : and 1* 102 : and 1* 10$2 : and 20 102 : and 20
74
010100020021000( Gelocity ratio is defined asa) b) c) d) e)
7he reaction at the fulcrum to balance the net forces on the system$ 7he ratio of the load to the effort$ 7he ratio of the distance moved by the effort to the distance moved by the load$ 7he ratio of the wor output to the wor input$ A bloc and tacle system$
010100020021000D n a lifting machine/ the effort applied moves a distance of # m while the load moves #0 mm$ What is the velocity ratio? a) b) c) d) e)
0$1 1 10 100 1/000
010100020021000, ,fficiency is a) b) c) d) e)
wor wor wor wor wor
input multiplied by wor output input divided by wor output output plus wor input output minus wor input output divided by wor input
010100020021000D A machine is used to lift a load of 2 : a distance of 3 m and the effort applied is 00 :$ What distance will the effort move if the efficiency of the machine is +0R? a) b) c) d) e)
20$#0 2$0+3 20$+3 1+$*# 1$+*#
m m m m m
010100020021000( A machine is used to lift a load of 12 : and the effort applied is :$ What distance will the load move if the effort moved a distance of + m and the efficiency of the machine is *0R? a) b) c) d) e)
0$#3#* 3$+0@# 1$+''* 0$3+0@ #$3#*0
m m m m m
010100020021000 An effort of 00 : is re%uired to raise a mass of 100 g in a certain machine$ f the mass is raised m while the effort
75
moves 12 m/ find the efficiency of the machine$ a) b) c) d) e)
@3R +2R +0R *#R *0R
010100020021000( An effort of #2# : is re%uired to raise a mass of 120 g in a certain machine$ f the mass is raised # m while the effort moves 1# m/ find the efficiency of the machine$ a) b) c) d) e)
+#R +0R *#R *0R '#R
010100020021000D An effort of 3 : is re%uired to move a mass of 2/000 g in a certain simple machine$ f the mass is raised 1$# m while the effort moves 12 m find the velocity ratio "G8)/ the actual mechanical advantage "JA)/ and the efficiency ",) of the machine$ a) b) c) d) e)
G8 G8 G8 G8 G8
E +/ E 12/ E +/ E +/ E 1$#/
JA JA JA JA JA
E E E E E
0$'*/ '$#/ 0$'*/ '$#/ 0$'*/
, , , , ,
E #$3 R E #$# R E +$3 R E +1$+ R E $* R
010100020021000D A bloc and tacle system has ' pulleys in each of two blocs "12 pulleys total)$ f a downward effort of 2'0 : is re%uired to raise a load of 300 g calculate the efficiency of the system$ a) b) c) d) e)
@$'R 1@$2R 1++$3R @$3R 10+$'R
010100020021000 A bloc and tacle system has 3 pulleys in each of two blocs$ f a downward effort of 100 : is applied and the machine has an efficiency of +3$'R what is the ma&imum mass that can be moved? a) b) c) d) e)
#01$' g #1$1 g #/113$1 g 2#0 g 2#$' g
76
010100020021000( A simple wheel and a&le has a wheel diameter of 2$3 m and an a&le diameter of @2 mm$ f an effort of 2' : is re%uired to raise a mass of 1' g what is the efficiency of the machine? a) b) c) d) e)
2$'R @#$3R 2$1R 20$1R '#$#R
010100020021000, A simple wheel and a&le has a wheel diameter of 3 m and an a&le diameter of 2# cm$ What effort is re%uired to raise +#0 g if the efficiency is +*R? a) b) c) d) e)
+1 : @+' : 100$# : #'3$2 : *@+$* :
0#0#00020021000 A bloc and tacle consists of I pulleys on the upper bloc and I pulleys on the lower bloc$ Determine the load that may be held in e%uilibrium when an effort of III : is applied$ "8ound to 3 decimal places) Answer E : $5>577>7<:5 >!B5"3/@/1) B!B5 ,87"100/@#0/#0) $57<:5 B!B5E>!B561K B!B5HB!B5)K $8,5>B75 .Answer E./B577>7<:5 >!B5"3/@/1) B!B5 B7<:5 B!B5E>!B561K ,87EB!B5)K
77
$8,5>B75 .Answer E./,87-3/$01 0#0#00020021000 A bloc and tacle is used to lift a load of IIII : with an effort of ust over III :$ =ow many pulleys would be used on the lower bloc? Answer E $5>577>7<:5 B7<:5 BB75 .Answer E./(78-3/$0 0#030002002000#00 R$001#K# R$01K A simple wheel and a&le has a wheel radius of '0 cm and an a&le radius of 12 cm$ f an effort of @00 : is applied to the wheel/ what load can be raised by the a&le and what is the mechanical advantage of the arrangement? Answers1) E : 2) E JA 0#0300020020002# RK2#00 R$001#K A simple wheel and a&le has an a&le with a diameter of + cm and a wheel with a diameter of 2 m$ 1) 2)
Determine the mechanical advantage of the system$ Determine the load that may be balanced by a mass of 100 g attached to the wheel$
Answers1) E JA 2) E : 010100020021000A A wheel and a&le has a mechanical advantage of 10$ (alculate the diameter of the a&le if the diameter of the wheel is 30 cm$ a) b) c) d) e)
3 3$333 ' 1# 300
cm cm cm cm cm
0#030002002000*$#00 R $01K'# R $01K A wheel and a&le arrangement has an a&le with a diameter of 2# cm$ A rope is wrapped around the a&le and is supporting a load of 2 tonnes$
78
1) 2)
f the mechanical advantage of the system is 30/ determine the diameter of the wheel$ Determine the effort re%uired to maintain the system in e%uilibrium$
Answers1) E m 2) E :
Scalars and "ectors I 010100020021000A Which of the following is not a scalar %uantity? a) b) c) d) e)
velocity length volume time area
010100020021000, A scalar %uantity hasa) b) c) d) e)
necessary units only numerical si9e of the %uantity only magnitude only both direction and numerical si9e of the %uantity both magnitude and necessary units
010100020021000, Distance isa) b) c) d) e)
always a vector %uantity velocity divided by time measured in a straight line always measured in a circular path a scalar %uantity
010100020021000( A vector %uantity hasa) b) c) d) e)
both numerical si9e and the necessary units of the %uantity both direction and necessary units of the %uantity direction/ magnitude and necessary units of the %uantity magnitude and necessary units of the %uantity magnitude only
010100020021000D Gectors that are all in the same plane are defined as-
79
a) b) c) d) e)
scalar concurrent resultants coplanar antiplanar
010100020021000 A single vector which can replace a system of vectors and has the same effect is called aa) b) c) d) e)
coplanar vector resultant concurrent vector scalar none of the above
010100020021000 ind the resultant of 3 concurrent coplanar forces ofi) '0 : acting 20 degrees east of north ii) 30 : east iii) 1#0 : acting 0 degrees east of south a) b) c) d) e)
20 : east 1'0 : '+ degrees east of south '0 : 0 degrees east of south 10 : 100 degrees east of south 30 : *3$+ degrees east of north
010100020021000, A plane is flying at #' mh at a bearing of '# degrees$ After flying for 3 hours the plane heading is changed to a bearing of @0 degrees$ After flying for a further 1 hour at #' mh what is the plane;s bearing from its original position? a) b) c) d) e)
+1 +' 2 2# *1
degrees degrees degrees degrees degrees
010100020021000A ind the magnitude and direction of the resultant of 3 coplanar forces ofi) 0 : # degrees east of south ii) 10 : west iii) *0 : 3# degrees east of north a) b) c) d) e)
'# : '# degrees east of north 3# : 3# degrees east of south 120 : west 100 : 2# degrees east of south ## : # degrees west of south
010100020021000D
80
ind the magnitude and direction of the resultant of concurrent coplanar forcesi) 10 : 32 degrees east of north ii) 3# : #0 degrees east of north iii) 2# : *2 degrees east of north iv) +# : 0 degrees east of south a) b) c) d) e)
*0 : #' degrees east of north # : degrees east of north 1@' : +* degrees east of south 11 : ** degrees east of south 30 : *2 degrees east of south
010100020021000 Determine the resultant of the following vector systemi) '# m '0 degrees south of east ii) 120 m 30 degrees west of north iii) 30 m 3# degrees east of north iv) *# m south a) b) c) d) e)
120 m *0 degrees east of south 11 m *# degrees west of south '1 m '3 degrees east of south #0 m south @2 m 2 degrees west of south
!inear "elocit% and Acceleration 010100020021000D According to :ewtons laws of motion which statement is false? a) b)
c) d) e)
A body at rest will remain at rest unless acted upon by an e&ternal force$ f a body is acted upon by an e&ternal unbalanced force the body will have an acceleration in the direction and proportional to the magnitude of the force$ or every action there is an e%ual and opposite reaction$ A body in motion will come to rest unless acted upon by an e&ternal unbalanced force$ When one obect e&erts a force on a second obect the second obect e&erts a reactive force of e%ual magnitude and opposite direction on the first obect$
010100020021000 A body moves from !oint A to !oint in a semicircular path$ 7he diameter of the semicircle is 2 m$ (alculate the distance between !oint A and !oint $ a) b) c) d)
'$2+ 3$1 2$0* 1$0
m m m m
81
e)
0$#2 m
010100020021000 A body moves from !oint A to !oint in a semicircular path$ 7he radius of the semicircle is 2 m$ (alculate the displacement between !oint A and !oint $ a) b) c) d) e)
2 m m ' m + m 10 m
010100020021000, A body moves from A due east # m to / then from due north ' m to ( and finally from ( due west + m to D$ (alculate the total distance covered from A to D$ a) b) c) d) e)
11 13 1 1* 1@
m m m m m
010100020021000( A body moves from A due east # m to / then from due north ' m to ( and finally from ( due west # m to D$ (alculate the total distance covered from A to D$ a) b) c) d) e)
m # m ' m * m 1@ m
010100020021000 A vehicle that travels 1#0 m in 3 hours/ a) b) c) d) e)
has a velocity of #0 mh has an average speed of #0 mh has a relative velocity of #0 mh covers a distance of #0 m has a velocity of *#0 mh
010100020021000( An airplane travels #00 m due west in 2 hours$ velocity is a) b) c) d) e)
2#0 ms due west 1'* ms due west '@$ ms due west '@$ ms due east 1000 mh due east
ts average
82
010100020021000( An airplane travels 2#0 m due West for 2 hours$ velocity is a) b) c) d) e)
ts average
1#0 ms West 2#0 ms West 3$*22 ms West '@$ ms ,ast #00 mh ,ast
010100020021000 Gelocity is a) b) c) d) e)
a scalar %uantity a vector %uantity a standard %uantity an average %uantity a ma&imum %uantity
010100020021000, Gelocity may be defined as a) b) c) d) e)
speed linear speed rotational speed speed in a given time speed in a given direction
010100020021000 7he 5 unit for velocity is a)
ms
b)
ms
c)
mhr
d)
ms
e)
2 m s
2
010100020021000A A train starts off from rest and reaches a velocity of 100 mh in + minutes$ f the velocity increases uniformly/ how far will the train travel in the first + minutes? a) b) c) d) e)
'$'* *$3 +$#0 @$2# @$*'
m m m m m
010100020021000D A vehicle starts off from rest and reaches a velocity of +0
83
mh in 12 seconds$ f the velocity increases uniformly/ how far will the train travel in the first 12 seconds? a) b) c) d) e)
1++$+* 1**$*' 1''$*0 133$33 113$33
m m m m m
010100020021000( A vehicle travelling at @0 mh decelerates uniformly to #0 mh in @ seconds$ =ow far will the vehicle travel in this time? a) b) c) d) e)
12# 1#0 1*# 200 22#
m m m m m
010100020021000, Acceleration is measured ina)
m
b)
2 ms
c)
ms
d)
sm 2
e)
ms
010100020021000, Which of the following statements about acceleration is true? Acceleration isa) b) c) d) e)
time velocity force time the rate of change of displacement time force the result of an unbalanced force e&erted on a body
010100020021000, Acceleration may be defined as the rate of change in a) b) c) d) e)
time distance area volume velocity
84
010100020021000A 7he 5 unit for acceleration is 2 a)
ms 3
b)
ms
c)
ms
d)
mh
e)
ms
010100020021000( A car travelling at 1+ mh increases its velocity uniformly to + mh in ' seconds$ What is the acceleration in metres per second s%uared? a) b) c) d) e)
1$12 1$23 1$3@ 1$# 1$#*
010100020021000 A car travelling at @0 mh is brought to rest over a distance of 120 m$ What is the acceleration in metres per second s%uared? a) b) c) d) e)
2$' 62$' 1$3 61$3 62$0
010100020021000D 7he area under a velocity vs$ time graph e%ualsa) b) c) d) e)
distance speed acceleration displacement average velocity
010100020021000, A car travels a total of 3#0 m$ 7he ourney involves a total of 3 hours driving time and # minutes of stop time$ What is the average ourney speed? a) b) c) d)
101$ mh *1$* mh 11'$* mh 10*$* mh
85
e)
@3$3 mh
010100020021000A A plane is flying at '00 mh and reduces its velocity uniformly to *0 mh in 3 minutes$ What is its acceleration? 2 a)
60$+1+ ms
b)
6@$0* ms
2
2 c)
61*'$'* ms
d)
62$2 ms
2
2 e)
63$33 ms
010100020021000, An obect is thrown directly downwards from a height of '0 m with an initial velocity of 11 ms$ What will be its velocity on impact? a) b) c) d) e)
3$# ms 1/2+@$1' ms 2$2 ms 12'$3+ ms 3'$03 ms
010100020021000D An obect is dropped from a height of # m$ velocity be on impact? a) b) c) d) e)
++2$@ 1$# 22$#0 2@$*1 31$*'
ms ms ms ms ms
010100020021000A An obect is dropped from a height of ## m$ velocity be on impact? a) b) c) d) e)
32$+# 3$#* #'$3 '+$*@ *2$12
What will its
What will its
ms ms ms ms ms
010100020021000 A car has an initial speed of 2# mh and in + seconds it accelerates to 110 mh$ What is the distance travelled during the acceleration period?
86
a) b) c) d) e)
2#*# m 1#*# m *#* m #*# m ## m
010100020021000( A car has an initial speed of 3# mh and in *# seconds it accelerates to 120 mh$ What is the distance travelled during the acceleration period? a) b) c) d) e)
23# 1+*# 1'1 1#'* 1'3
m m m m m
Force, &or', Pressure, Power and Energ% 010100020021000D A push or pull e&erted on an obect which may change the obects state of motion is defined asa) b) c) d) e)
wor energy power force pressure
0#0#00020101000 A cylindrical tan with flat ends is I$I metres in diameter and II metres high$ What will the force of gravity be on the tan/ if it has been built with a steel plate having a mass of 21 gs% m? "8ound the answer to 3 decimal places) Answer E newtons $5>577>7<:5 D"$#/3/$#) B"/10/1) $57<:5 WE'*$2LDL"D2HB)K $8,5>B75 .Answer E./W-3/0$01 0#0#00020101000 A cylindrical tan with flat ends is I$I metres in diameter and II metres high$ What will the force of gravity be on the tan if it has been made with plate having a mass of 32 gs% m? "8ound the answer to 3 decimal places) Answer E newtons $5>577>7<:5 D"$#/3/$#) B"/10/1)
87
$57<:5 E@+'$21LDL"D2HB)K $8,5>B75 .Answer E./-3/$0# 010100020021000( n the 5 system/ the unit of force is called the newton ":) and 1 : is e%ual to 2 a)
1 gs
b)
1 g ms 2
c)
1 g ms
d)
2 1 g m s
e)
2 3 1 g m s
010100020021000 Wor is defined asa) b) c) d) e)
A push or pull on an obect which may change its state of motion$ 7he product of the force applied on an obect and the distance through which the force moved$ 7he measure of force per unit area$ 7he ability to apply force$ :one of the above$
0#0#00020021000 (alculate the wor done in pumping IIII litres of water a vertical distance of II metre$ "8ound to 3 decimal places) Answer E 66666666666666666666 C $5>577>7<:5 G7<:5 W<8EGB75 .Answer E./W<8-3/$01 010100020021000( A pump is re%uired to raise '00 litres of fresh water a vertical distance of 120 m$ f the efficiency of the pump is #R/ how much wor must be done on the pump to raise the water? a) b)
1#*0 QC 1#*0 JC
88
c) d) e)
1#*0 C 1#*0 C 1$#* C
0#0#00020021000 A pump has an efficiency of II percent$ (alculate the power re%uired to lift II litres of water per second to a height of II metres$ "8ound to 3 decimal places) Answer E watts $5>577>7<:5 ,(4"#0/+0/1) G7<:5 !B75 .Answer E./!577>7<:5 ,(4"'0/+0/1) G7<:5 !B75 .Answer E./!
3'0 @$0# #++$' *0'$32 '@$
W W W W W
0#0#0002010#000 A boiler has a woring pressure of III psi$ Qive this pressure in- "8ound to 3 decimal places) Answers1) E 66666666666666666666 !a 2) E 66666666666666666666 J!a
89
3) E 66666666666666666666 :m ) E 66666666666666666666 pascals #) E 66666666666666666666 bars $5>577>7<:5 !"100/00/20) $57<:5 !1E'$+@#L!K !2E'$+@#L!1000K !3E'+@#L!K !E'+@#L!K !#E'$+@#L!100K $8,5>B75 .Answer 1 E./!1-3/$0# .Answer 2 E./!2-3/$0# .Answer 3 E./!3-3/$0# .Answer E./!-3/$0# .Answer # E./!#-3/$0# 0#0#00020021000 A pressure of III !a acts upon a II cm diameter piston$ (alculate the total force e&erted upon the piston$ "8ound the answer to 3 decimal places) Answer E : $5>577>7<:5 !855"100/@#0/#0) DAJ"10/30/1) $57<:5 8(,E3$11'L"DAJ100)LL2L!855L2#0K $8,5>B75 .Answer E./8(,-3/$01 0#0#00020021000 A cylinder contains steam at a pressure of IIII !a$ f the cylinder diameter is II cm/ what is the force acting upon the cylinder end? "8ound the answer to 3 decimal places) Answer E : $5>577>7<:5 !855"1000/@@#0/#0) DAJ"10/30/1) $57<:5 8(,E3$11'L"DAJ100)LL2L!855K $8,5>B75 .Answer E./8(,-3/$01
0#0#00020021000 7he diameter of a pump piston is II cm$ A force of III : is applied to the piston rod$ Determine the pressure the pump will develop$ "8ound to 3 decimal places) Answer E !a
90
$5>577>7<:5 DAJ"10/30/1) 8(,"#0/100/#) $57<:5 !855E8(,L3$11'"DAJ100)LL21000K $8,5>B75 .Answer E./!855-3/$01 0#0#00020021000 7he air pressure in a tire is III !a$ 7he internal surface area of the tire is IIII s% cm$ Determine the total force applied by the air to the tire$ "8ound to 3 decimal places) Answer E : $5>577>7<:5 !855"100/@#0/#0) A8,A"#00/1#00/#0) $57<:5 8(,E!855LA8,A10000K $8,5>B75 .Answer E./8(,-3/$01 010100020021000A A piston having an area of $2 m s% is subect to a pressure of '00 !a$ What is the total force e&erted on the piston? a) b) c) d) e)
120 1200 120 1200 12
: : !a !a :
0#0#00020021000 7he pressure gauge on a condenser indicates 6II$I !a$ Determine the absolute pressure in the condenser when the barometric pressure is III$I !a$ "8ound the answer to 3 decimal places) Answer E !a $5>577>7<:5 GA(m"+#/@3/0$1) A!85"@#/101$3/0$1) $57<:5 7!85EA!856GA(mK $8,5>B75 .Answer E./7!85-3/$01 $*$3
7estban$Document$Tuestions for 7estban !,!A87A
6 orce/ Wor/ !ressure/ !ower and ,nergy 0#0#00020021000 7he absolute pressure is III !a/ and the atmospheric pressure is III$I !a$ Determine the gauge pressure$ "8ound the answer to 3 decimal places)
!age 16 11* 2#65,!62001
91
Answer E !a $5>577>7<:5 7!85"100/#00/20) A!85"@#/101$3/0$1) $57<:5 Q!85E7!856A!85K $8,5>B75 .Answer E./Q!85-3/$01 010100020021000 What is the absolute pressure if the gauge pressure in a steam cylinder is 200 !a? "Atmospheric pressure is 101$3 !a) a) b) c) d) e)
301$3 301$3 200$3 200$3 @+$*
!a !a !a !a !a
010100020021000D 1 psi e%uals a) b) c) d) e)
1 ilo pascal 100 !a 1 newtonm s% '$+@ !a 2$2 !a
010100020021000( f three boilers each have a pressure of 130 !a/ the pressure in the steam header will be a) b) c) d) e)
130 130 130 130 3@0
bar gcm s% ilo pascals J!a !a
010100020021000A 7he capacity of a body to do wor is defined as a) b) c) d) e)
energy power pressure force mass
010100020021000, An obect at rest with a mass of '+$# g is at a height of '# m above the earth;s surface$ What is its inetic energy? a) b) c) d)
$# C $3* C 3$2# C 3+$' C
92
e)
none of the above
010100020021000A A body with a mass of ++ g is moving at a velocity of 13$+@ ms$ What is its inetic energy? a) b) c) d) e)
+/++ C 1$22 C 13$+@ C '11$11 C '$@ C
010100020021000 An obect of mass @# g is at a height of 3' m above the ground$ What is its potential energy? a) b) c) d) e)
3$2 C 33$## C 1$*1 C @31$@# C 3+$'2 C
0#0#000200#1000 What is the inetic energy of a car/ having a mass of IIII g and travelling at a velocity of II mh? "8ound the answer to 3 decimal places) Answer E C $5>577>7<:5 JA55"1000/000/#0) GB(7"30/@0/') $57<:5 ,:8EJA55L"GB(7L10003'00)LL22000K $8,5>B75 .Answer E./,:8-3/$01 0#0#000200#1000 7he inetic energy of an automobile/ having a mass of IIII g is III$I C$ ind the velocity of the car in mh$ "8ound the answer to 3 decimal places) Answer E mh $5>577>7<:5 JA55"1000/000/#0) ,:8"200/00/10) $57<:5 GB(7E"2L,:8L1000JA55)LL0$#L3$'K $8,5>B75 .Answer E./GB(7-3/$01 010100020021000, (alculate potential energy possessed by a mass of 100 g located 0 m above ground level$ a) b) c)
000 C 2$# JC @+1 C
93
d) e)
3@2$ C 3@$2 C
010100020021000D What is the inetic energy possessed by a car/ having a mass of 1#00 g and travelling at a velocity of #0 mh? a) b) c) d) e)
30 C 2# C 2# C 1$* C 2+@$ C
010100020021000, A simple machine is re%uired to raise 1 tonne of stone a vertical distance of 30 m$ f the efficiency of the pulley is 100R how much wor must be done on the pulley to raise the stone? a) b) c) d) e)
2@$3 C 30 C 3# C 3$ C 2@$2* C
010100020021000A What force is produced on a circular wall with a diameter of 3 m when 1/100 !a acts upon it? a) b) c) d) e)
*/**#$ : 1## : 31/101 : 10/3'*$2' : */300$33 :
010100020021000A A pump raises '#0 tonnes of sea water a height of ## m in ' hours$ f the pump efficiency is 100R what is the power re%uired to drive the pump? a) b) c) d) e)
1'$2 W 3#0/*0*$# W 1*$' W 1/0*$#1 W '2/+#0$+1 W
010100020021000, A body with a mass of 2 tonnes is moving at 100 mh$ What would be the vertical height that the body could climb before coming to rest? a) b) c) d) e)
2*$+ #$10 1$1 1$1+ 3@$3
m m m m m
94
010100020021000D An obect is allowed to free fall from rest from a height of @ m$ What will be its velocity on striing the ground? a) b) c) d) e)
1$0* 1$00 13$#3 13$2@ 13$00
ms ms ms ms ms
010100020021000, A body is moving 12 ms$ What would be the vertical height that this body could climb to before it comes to rest? a) b) c) d) e)
#$10 #$#0 '$10 *$00 *$3
m m m m m
Friction I 010100020021000 7o start a body moving which of the following must be overcome? a) b) c) d) e)
inetic friction static friction fluid friction rolling friction normal force
010100020021000( n the case of static friction if the downward force between the surfaces is doubled then the friction willa) b) c) d) e)
decrease by half remain constant increase by twice as much be eliminated none of the above
010100020021000D Which of the following statements is false? a) b) c) d) e)
inetic friction is not affected by the body;s speed inetic friction is greater than rolling friction friction is affected by the relative roughness of the two surfaces inetic friction is greater than static fiction force of friction is not affected by the area of the surfaces in contact
95
010100020021000, 7he coefficient of friction is defined asa) b) c) d) e)
the downward force on the two surfaces in contact the force parallel to the surface re%uired to start an obect moving the reaction normal perpendicular to the surface the force parallel to the surface re%uired to eep an obect moving at a constant linear velocity the ratio of the force re%uired to move a body to the normal reaction force
010100020021000A ind the coefficient of friction between a *3 g cubic bo& measuring 3 m and a hardwood floor 1' m long and 20 m wide if a total of 23' : is re%uired to start the bo& moving$ a) b) c) d) e)
0$33 3' : 3$20 3$03 2$0' :
010100020021000D ind the force re%uired to start a 1 ton obect moving along a surface with a coefficient of friction of 0$'2$ a) b) c) d) e)
'20 : '$1 : @/+10 : '/0+2$2 : 1#$+22 :
010100020021000A ind the mass of the refrigerator which is ust started moving by a force of '/3#0 : along a tile floor with a coefficient of friction of 0$30$ a) b) c) d) e)
2/1#*$'' g 21$2 tonnes 1/@0# g 0$0 g 1@$1@ g
0#0#000200@3000 A bloc is held in contact with a hori9ontal surface with a vertical force of IIII :$ 1)
f a hori9ontal force of III : ust causes motion to impend/ calculate the coefficient of static friction$
2)
f a hori9ontal force of III : was re%uired to eep the bloc moving at a uniform velocity/ what is the coefficient of inetic friction?
96
3)
f a hori9ontal force of III : is applied to the bloc and causes motion to impend/ what is the value of the friction force between the surfaces in contact?
Answers "8ound to 3 decimal places)1) E 66666666666666666666 2) E 66666666666666666666 3) E 66666666666666666666 : $5>577>7<:5 :8("1000/@000/100) 57"100/##0/#0) : 87 $57<:5 :E0$@L57K 87E0$+L57K 5(E57:8(K :(E::8(K $8,5>B75 .Answer 1 E./5(-3/$01 .Answer 2 E./:(-3/$01 .Answer 3 E./87-3/$01 0#0#00020021000 (alculate the mass of a bloc if a force of II : is re%uired to eep it sliding on a hori9ontal surface$ 7he coefficient of friction is I$II$ "8ound to 3 decimal places) A:5W,8 E g $5>577>7<:5 8("10/30/1) 8("0$1/0$#/0$01) $57<:5 JA55E8(8(@$+1K $8,5>B75 .Answer E./JA55-3/$01 0#0#00020021000 7he coefficient of friction between a bloc and a hori9ontal surface is I$II$ Determine the mass of the bloc if a force of III : is re%uired to eep it sliding along the surface$ "8ound the answer to 3 decimal places) Answer E g $5>577>7<:5 8("0$1/0$#/0$01) 8("100/@#0/#0) $57<:5 JA55E8(8(@$+1K $8,5>B75 .Answer E./JA55-3/$01
97
Stress and Strain 010100020021000 7he internal resistance developed to counteract an e&ternal force is defined as a) b) c) d) e)
strain stress ultimate strength load deformation
010100020021000D ,&ternal tensile forces acting parallel but not in line produces a) b) c) d) e)
tensile stress compressive stress woring stress shear stress compressive strain
010100020021000D 7he ratio between the ultimate strength and the allowable stress is defined as a) b) c) d) e)
ultimate stress ma&imum allowable load woring stress safety factor elastic limit
010100020021000, A measure of the deformation in a member by a load is defined as a) b) c) d) e)
safety factor tensile stress ma&imum load woring stress none of the above
010100020021000D 7he ability of a material to return to its original shape after the force or load which caused the deformation is removed is called a) b) c) d) e)
stiffness plasticity ductility elasticity toughness
010100020021000(
98
7he ability of a material to resist penetration is called a) b) c) d) e)
elasticity toughness hardness ductility stiffness
010100020021000 7he ability of a material to brea without much deformation occurring before fracture is called a) b) c) d) e)
stiffness brittleness toughness hardness ductility
010100020021000D 7he ability of a material to retain its deformed shape when the load causing deformation is removed is called a) b) c) d) e)
stiffness ductility hardness plasticity elasticity
010100020021000A A round tie bar in a frame wor is subected to a load of '# :$ f the radius of the tie is 1# mm what will the stress be in the tie? a) b) c) d) e)
@1/@#' !a 3'*/+21 !a #$@' !a 22/@+@ !a 2/*#+ !a
010100020021000, A compressive load of 21@ : is resisted by a rectangular strut which has one side measuring +3 mm$ f the stress in the strut is 1'/@0@ !a what is the length of the other side of the strut? a) b) c) d) e)
1$3 mm 0$*# m @$0* m 3$3 mm 0$01' m
010100020021000 A hole 3 cm in diameter is to be punched out of a steel plate + cm thic$ 7he shear stress of the material is '*0 Q!a$ What load is re%uired on the punch?
99
a)
/*3#/#0@ Q:
b)
#/0#1$' J:
c)
1$' L 10
d)
@/03' J:
e)
'3/1' :
13 :
010100020021000 A unit of stress is a) b) c) d) e)
mmm !a gs% cm :m gm s%uared
010100020021000D A titanium bar with a mass of 2 g and a length of 3 m shortens by 0$02 mm under a compressive load of 3/@00 :$ What will be the strain? 63 a)
1$@ L 10 63
b)
'$'' L 10
c)
61$@ L 10
d)
60$00000''''
e)
61$@ L 10
2
63
0#0#00020021000 7he ultimate strength of a round steel rod is III J!a$ f a factor of safety of I$I is re%uired/ what is the ma&imum permissible load for the rod if it has a diameter of I$I cm? Answer E : "8ound to 3 decimal places) $5>577>7<:5 5785"##0/'#0/10) 5(7"3/'/0$#) DAJ"3/@/0$1) $57<:5 BB75 .Answer E ./B
100
What is the factor of safety for a steel hanger having an ultimate strength of III J!a and supporting a load of IIIII :$ 7he steel hanger has a cross sectional area of I$I s% cm$ Answer E "8ound to 3 decimal places) $5>577>7<:5 >578"##0/'#0/10) B7<:5 5(7E>578L100"BB75 .Answer E ./5(7-3/$01 010100020021000( What is the factor of safety for a steel hanger having an ultimate strength of *0000 newtons per s% cm and supporting a load of +*#00 :$ 7he hanger has a cross sectional area of # s% cm$ a) b) c) d) e)
1$2# '$2# + $+
010100020021000A f engineers re%uire a material which would be able to be stretched and reduced in cross section without breaing they would choose a material with which of the following properties? a) b) c) d) e)
ductility brittleness plasticity toughness elasticity
010100020021000( 5tiffness is defined as the ability of a material toa) b) c) d) e)
return to its original shape after the load causing deformation is removed retain its deformed shape when the load causing the deformation is removed resist a change in shape and si9e when a load is applied resist penetration absorb energy before breaing
010100020021000, 7he greatest load that can be applied to a material under its design conditions is called a) b) c)
ultimate stress elastic limit allowable stress
101
d) e)
factor of safety ma&imum allowable load
010100020021000A 7he of a material is the ma&imum stress value that the material can be subected to and still return to its original si9e and shape when the deforming load is removed$ a) b) c) d) e)
elastic limit ma&imum allowable load allowable stress ultimate stress ma&imum allowable stress
Power ransmission 010100020021000 Which of the following statements about belt drive systems is false? a) b) c) d) e)
Binear speed on a point on each pulley will be the same as the linear speed of the belt$ 7ension in the bottom belt is always double that in the top belt$ elt driver pulleys move follower pulleys by means of frictional force between the belt and the pulleys$ 8otational speed will be e%ual if the pulley diameters are e%ual$ A belt system is 100R efficient if there is no slippage$
010100020021000( When two pulleys of different diameters are connected by a belt/ the larger diameter pulley will turn the smaller diameter pulley$ a) b) c) d) e)
the same speed as faster than slower than in the opposite direction to none of the above
010100020021000, Which statement concerning belt trains is false? a) b) c) d) e)
elt trains transmit less power than gear trains of comparable si9e$ elt trains are used to change speeds of pulleys$ elt trains are used to change power transmissions of belts$ !ulleys in a train all rotate in the same direction$ 7rains are connected by a single belt$
010100020021000A A gear wheel with +# teeth rotates at '/#00 rmin and drives
102
another gear at @/+'' rmin$ gear have? a) b) c) d) e)
=ow many teeth does the driven
#' 12@ *' +# '3
010100020021000A Which of the following statements about idler gears is true? a) b) c) d) e)
8everses the gear wheel direction$ (reates slippage$ (hanges the rmin of the driven gear$ Always results in increasing efficiency$ none of the above$
0#0#00020021000 7wo pulleys/ one II cm in diameter and the other II cm in diameter are connected by a belt$ f the speed of the first pulley is IIII rpm/ what is the speed of the second pulley? Answer E rpm "8ound to 3 decimal places) $5>577>7<:5 5!B 5(!B"20/30/2) 8GB $57<:5 5!BE5(!BL1$#K 8GBE30L5(!BK 8GB5E8GBL5!B5(!BK $8,5>B75 .Answer E./8GB5-3/$01 0#0#00020021000 A II cm diameter pulley turns at III rpm and drives/ by means of a belt/ another pulley at IIII rpm$ What is the diameter of the driven pulley? Answer E cm "8ound to 3 decimal places) $5>577>7<:5 5!B"0/'0/2) 8GB 8GB5 $57<:5 8GBE1'L5!BK 8GB5E8GBL2K 5(!BE5!BL8GB8GB5K $8,5>B75 .Answer E./5(!B-3/$01
0#0#00020021000 A II tooth gear turns at III rpm and drives a III tooth gear$ (alculate the rpm of the second gear$
103
Answer E rpm "8ound to 3 decimal places) $5>577>7<:5 5Q8"12/30/2) 8GB 5(Q8 $57<:5 8GBE#L5Q8K 5(Q8E2$#L5Q8K 8GB5E8GBL5Q85(Q8K $8,5>B75 .Answer E./8GB5-3/$01 010100020021000 A 2+ tooth gear turns at 100 rpm and drives a 112 tooth gear$ What is the speed of the follower gear? a) b) c) d) e)
00 2# 31$3' 12#$
rpm rpm rpm rpm rpm
010100020021000, A pulley with a diameter of #0 cm is driven at @'0 rmin$ What will be the linear speed in ms of a point on the rim of the pulley? a) b) c) d) e)
1#0$+ ms #0$2 ms 2/#00 ms '$3 ms 2#$2 ms
010100020021000A A pulley of diameter 2$' m rotates at 10* rmin and drives a follower pulley at 2#@ rmin$ What is the diameter of the follower pulley? a) b) c) d) e)
1$0* m '$3 m 0$@3 m 3$# m #$20 m
010100020021000A 7he tensions in the tight and slac side of a belt are 1000 : and @00 : respectively$ f the power transmission is '## W what is the speed of the belt if there is no slippage? a) b) c) d) e)
#0 ms 3$@' ms 2#$2 ms 0$0# ms 31$' ms
104
010100020021000( n a drive belt system the input to the driver pulley is 2'# W and the output is 211 W$ What is the efficiency? a) b) c) d) e)
121R @3$3R *@$'R +2$R *#$+R
010100020021000, 7he clearance that is necessary between teeth that have to mesh is called a) b) c) d) e)
gap play lashbac clearance baclash
Introduction to hermod%namics 010100020021000( 7he amount of heat to raise the temperature of a unit mass of a substance 1 degree (elsius without changing the state of the substance is defined as a) b) c) d) e)
latent heat saturation temperature specific heat absolute 9ero radiation
010100020021000A 7he flow of heat from molecule to molecule within a substance or from molecules of one body to those of another body in direct contact with it is defined as a) b) c) d) e)
conduction convection specific heat latent heat of fusion absolute pressure
010100020021000 5ensible heat a) b) c) d) e)
is the latent heat plus heat of evaporation causes a rise in temperature cannot be read on a thermometer is the latent heat of fusion does not e&ist in vapours
010100020021000A
105
Absolute pressure is the sum of and pressures$ a) b) c) d) e)
gauge/ atmospheric standard/ deviation minimum/ ma&imum positive/ negative above/ below
010100020021000( 9ero is the temperature at which all molecular movement ceases$ a) b) c) d) e)
!ositive :egative Absolute Jinimum Ja&imum
010100020021000D pressure is the pressure e&erted by the earth;s atmosphere$ a) b) c) d) e)
Absolute Ja&imum Jinimum Atmospheric 5tandard
010100020021000 heat is heat that causes a change of state of a substance without changing its temperature$ a) b) c) d) e)
5ensible Batent 5uper ntense 5aturated
010100020021000A heat is heat that causes a change in the temperature of a substance without changing its state$ a) b) c) d) e)
5ensible Batent 5uper ntense 5aturated
010100020021000 steam is steam that is fully saturated with latent and sensible heat and has no water particles present$ a) b) c)
Wet saturated Dry saturated 5uper heated
106
d) e)
5ensibly heated ntensified
010100020021000( heat is the amount of heat re%uired to raise the temperature of a unit mass of a substance 1 degree (elsius without changing the state of the substance$ a) b) c) d) e)
5ensible Batent 5pecific 5uper 5aturated
010100020021000D Which of the following statements about the laws of thermodynamics is false? a) b) c) d) e)
=eat and wor are mutually convertible =eat supplied E increase in internal energy H wor done =eat will flow from a hot substance to a colder substance 8efrigeration re%uires no e&ternal wor supply none of the above
010100020021000 7he first law of thermodynamics states that heat and wor are a) b) c) d) e)
not convertible mutually convertible sometimes convertible mildly convertible mutually fusible
010100020021000D n the first law of thermodynamics/ heat supplied E increase in internal energy H $ a) b) c) d) e)
energy supplied energy absorbed wor in wor done wor supplied
010100020021000, 7he second law of thermodynamics states that unaided/ heat will only flow from $ a) b) c) d) e)
a a a a a
cold substance to a hotter substance warm substance to a hotter substance hot substance to a hotter substance cold substance to a colder substance hot substance to a colder substance
010100020021000 n the second law of thermodynamics/ if it is re%uired to transfer heat from a cold substance to a hotter substance "as in refrigeration) then must be supplied$
107
a) b) c) d) e)
internal energy e&ternal wor higher temperature lower temperature moderate temperature
010100020021000, 7he metric absolute temperature at which all molecular motion is said to completely cease is a) b) c) d) e)
62*0 degrees ( 0 degrees ( 0 degrees ( 6'0 degrees 8 0
010100020021000A Which of the following statements about heat is true? a)
b) c) d) e)
f there is a temperature difference between the heat source and a cooler obect in contact with the source/ heat will be transferred to the cooler obect$ =eat can be transferred from cold bodies to hot bodies without using an e&ternal supply of wor$ 5pecific heat is the same for every substance$ 5pecific heat capacity is the same for every state of matter of the same substance$ 1 C is less than 1 :m of wor$
0#0#000200+000 (onvert the following temperatures from degrees (elsius to degrees ahrenheit "8ound to 3 decimal places)Answers1) 2) 3) )
o III ( o III ( o IIII ( o IIII (
o E o E o E o E
$5>577>7<:5 857"610/@@/1) 5(:D"100/@@@/1) 7=8D"1000/1#00/1) 87="1#01/1+00/1) $57<:5 A:51E@#L857H32K A:52E@#L5(:DH32K A:53E@#L7=8DH32K A:5E@#L87=H32K $8,5>B75 .Answer 1 E./A:51-3/$01
108
.Answer 2 E./A:52-3/$01 .Answer 3 E./A:53-3/$01 .Answer E./A:5-3/$01
0#0#000200+000 (onvert the following temperatures from degrees (elsius to elvin "8ound to 3 decimal places)Answerso 1) III ( E o 2) III ( E o 3) IIII ( E o ) IIII ( E $5>577>7<:5 857"620/100/1) 5(:D"100/@@@/1) 7=8D"1000/1#00/1) 87="1#01/2000/1) $57<:5 A:51E857H2*3K A:52E5(:DH2*3K A:53E7=8DH2*3K A:5E87=H2*3K $8,5>B75 .Answer 1 E./A:51-3/$01 .Answer 2 E./A:52-3/$01 .Answer 3 E./A:53-3/$01 .Answer E./A:5-3/$01
0#0#000200+000 (onvert the following from elvin to degrees (elsius "8ound the answers to 3 decimal places)1)
IIII elvin
E
degrees (elsius
2)
IIII elvin
E degrees (elsius
3)
IIII elvin
E degrees (elsius
) IIII elvin E degrees (elsius $5>577>7<:5 1"100/200/1) 2"200/00/1) 3"00/'00/1) "'00/100/1) $57<:5 (1E162*3K (2E262*3K (3E362*3K (E62*3K $8,5>B75 .Answer 1 E./(1-3/$01
109
.Answer 2 E./(2-3/$01 .Answer 3 E./(3-3/$01 .Answer E./(-3/$01 0#0#000200+000 (onvert the following temperatures from degrees (elsius to elvin "8ound the answers to 3 decimal places)1)
IIII degrees (elsius E elvin
2)
IIII degrees (elsius E elvin
3)
IIII degrees (elsius E elvin
) IIII degrees (elsius E elvin $5>577>7<:5 (1"6100/0/1) (2"0/100/1) (3"100/300/1) ("300/1200/1) $57<:5 1E(1H2*3K 2E(2H2*3K 3E(3H2*3K E(H2*3K $8,5>B75 .Degrees elvin-./1-3/$01 .Degrees elvin-./2-3/$01 .Degrees elvin-./3-3/$01 .Degrees elvin-./-3/$01 010100020021000 A bimetal thermometer consists of a) b) c) d) e)
a filament that is compared to the obect being measured two dissimilar metals welded together two dissimilar wires connected to a battery two copper wires connected together two silver wires and a ground strap
0#0#00020021000 (alculate the heat re%uired to raise the temperature of III litres of water from II to IIII degrees (elsius$ Answer E C "8ound to 3 decimals) $5>577>7<:5 J"100/3#0/#) 71"#/#0/#) 72 8"1/@/1) $57<:5 7DE"0L8)K 72E71H7DK =E7DL$2LJK $8,5>B75 .Answer E./=-3/$01
110
010100020021000 When the temperature of an obect is raised/ its increase in area is proportional to its a) b) c) d) e)
initial length and final temperature initial area and temperature rise volume and initial temperature initial length and temperature rise colour and shape
0#0#0002001000 ind the %uantity of heat re%uired/ to raise the temperature of II litres of water from II to IIII degrees (elsius$ Answer E C "8ound to 3 decimal places) $5>577>7<:5 J"2/30/1) 71"#/2#/#) 72 8"1/@/1) $57<:5 7DE"*#L8)K 72E71H7DK =E7DL$2LJK $8,5>B75 .Answer E./=-3/$00#
010100020021000 ind the %uantity of heat re%uired to raise the temperature of '$3 g of glass from ' degrees ( to 210 degrees ( if the specific heat capacity of glass is '*0 Cg $ a) b) c) d) e)
++'$ C +'1$2 C 2#$3 C @11$* C *#$3 C
010100020021000 f a 2+' m steel bar is increased from 2 degrees ( to 3@0 degrees (/ how much does the bar e&pand? "7he coefficient of linear e&pansion of steel is 0$000012degrees ()$ a) b) c) d) e)
@$++ m 1$33 m 2$@3 m *$23 m 1#$* m
010100020021000( Which of the following statements is true? a) b)
Water will only e&pand when its temperature is increased$ Bi%uids will not contract when their temperatures lower$
111
c) d) e)
(oefficients of e&pansion for li%uids change in value as the temperature changes$ n general coefficients of e&pansion of solids are greater than those of li%uids$ 5olids generally contract when their temperatures rise$
010100020021000D When the temperature of an obect is raised/ its increase in length is proportional to its a) b) c) d) e)
initial length and initial temperature cross6sectional area and temperature volume and temperature rise initial length and temperature rise elasticity and its ductility
0#0#00020021000 (alculate the amount of e&pansion occurring when a steel rail III metres in length is heated from III to IIII degrees (elsius$ Answer E m "8ound to 3 decimal places) $5>577>7<:5 B"00/@#0/#) 71"6#0/6#/#) 72 8"1/@/1) $57<:5 7DE"'0L8)K 72E71H7DK ,E7DLBL$000012K $8,5>B75 .Answer E./,-3/$01 010100020021000( 7he coefficient of e&pansion of metals a) b) c) d) e)
is a constant for all non6ferrous metals has the units .cm. per .m. is greater for aluminum than steel is the same for all metals re%uires a component of latent heat
0#0#00020021000 (alculate the amount of e&pansion occurring/ when a steel pipe III m long is heated from II to IIII degrees (elsius$ Answer E $5>577>7<:5 B"10/#00/#) 71"#/@#/#) 72 8"1/#/1) $57<:5 7DE"100L8)K 72E71H7DK ,E7DLBL$000012K $8,5>B75
m
"8ound to 3 decimal places)
112
.Answer E./,-3/$01 0#0#00020021000 (alculate the heat re%uired to raise the temperature of a II g bloc of cast iron from II to IIII degrees (elsius$ Answer E C "8ound to 3 decimals) $5>577>7<:5 J"#/@#/#) 71"#/@#/#) 72 8"1/@/1) $57<:5 7DE"#0L8)K 72E71H7DK =E7DL$#LJK $8,5>B75 .Answer E./=-3/$01 010100020021000 7he transfer of heat involving the movement of a fluid is defined as a) b) c) d) e)
conduction convection radiation refrigeration super heating
010100020021000( 7he transfer of heat through emission of electromagnetic waves is defined as a) b) c) d) e)
conduction convection radiation refrigeration molecular agitation
010100020021000A 8adiation from the furnace fire a) b) c) d) e)
travels in straight lines is present in oil firing but not fuel gas firing radiates through the superheater tube walls radiates through the water in the water walls re%uires a transfer medium
010100020021000 :atural convection is a method of heat transfer where the movement of the fluids is due solely to the a) b) c) d) e)
surface pressure difference in densities difference in heating time gravitational differences activity of the radiant rays
113
010100020021000( 7he method of heat transfer involves the flow of heat from molecule to molecule within a substance or from the molecules of one body to those of another body which is directly in contact with the first body$ a) b) c) d) e)
convection e&pansion conduction contraction radiation
010100020021000A 7he transfer of heat by involves the movement of a fluid "a li%uid or a gas)$ a) b) c) d) e)
convection e&pansion conduction contraction radiation
010100020021000, refers to the transmission of electromagnetic waves$ a) b) c) d) e)
(onvection ,&pansion (onduction (ontraction 8adiation
hermod%namics o# Steam 010100020021000 n 7able of the 5team 7ables/ the specific volume of steam is in a) b) c) d) e)
column column column column column
1 3 # '
010100020021000 (olumns +/ @ and 10 of 7able of the steam tables deal with which type of energy? a) b) c) d)
internal energy enthalpy entropy specific energy
114
e)
potential energy
010100020021000D n column @ of 7able 1 of the 5team 7ables/ the enthalpy "h ) found in that column is nown as the fg a) b) c) d) e)
sensible heat of fusion latent heat of fusion sensible heat of evaporation latent heat of evaporation sensible heat of enthalpy
010100020021000A n column + of 7able 1 of the 5team 7ables/ the enthalpy "h ) found in that column is nown as the f a) b) c) d) e)
sensible heat latent heat sensible heat of fusion latent heat of fusion latent heat of evaporation
010100020021000( n column 1 of 7able 1 of the 5team 7ables/ the unit used for pressure is in a) b) c) d) e)
Qpa Jpa !a ars !a
010100020021000D 7he unit used for specific volume in the 5team 7ables is
a)
3 m g
b)
3 m g
c)
3 cm g
d)
3 cm g
e)
3 mm g
010100020021000( n the 5team 7ables/ the unit used for hf/ hfg/ and hg is a)
Cg
115
b) c) d) e)
Cg Cg Cg JCg
010100020021000 n the 5team 7ables/ h
in tables 1 and 2 is e%ual to g
a)
h 6 h f fg
b)
h H h f fg
c)
h & h f fg
d)
h h f fg
e)
h
2 2 H h f fg
010100020021000D =ow much energy is re%uired to raise '3 g of ice at 0 degrees ( to saturated steam at 100 degrees ($ 5pecific heat capacity of water is $2 Cg $ 5pecific latent heat of ice is 33# Cg$ 5pecific latent heat of steam is 2/2#* Cg$ a) b) c) d) e)
3#/@0 C 21/**# C #3/10* C 1+@/*#' C 2*3/0@* C
010100020021000( 5team containing water particles in suspension is defined as a) b) c) d) e)
dry steam theoretical steam wet steam latent heat of steam superheated steam
010100020021000, 7o avoid condensation loss in steam a) b) c) d) e)
steam is heated to saturation temperature wet steam is used steam pressure is increased heat is transported via boiling water super heated steam is used
116
010100020021000 5uperheated steam a) b) c) d) e)
is produced in the saturated steam drum temperature is higher than the saturation temperature is almost dry and contains very little moisture cannot be used for soot blowers must have its corresponding pressure increased
010100020021000D =eat which brings about a change of state a) b) c) d) e)
can be sensed by a thermometer is called sensible heat causes a change of temperature is called latent heat is called e&pansive heat
010100020021000 5ensible heat a) b) c) d) e)
is the sum of the latent heat plus heat of evaporation causes a rise in temperature cannot be read on a thermometer is a sensible latent heat of fusion cannot be removed from a solid
010100020021000( Wet steam a) b) c) d) e)
contains only part of the sensible heat of the li%uid contains all the latent heat of vapori9ation contains all the sensible heat of the li%uid and only part of the latent heat of vapori9ation contains all the sensible and latent heat cannot e&ist above atmospheric pressure
010100020021000, 7he steam tables indicate the pressures units in a) b) c) d) e)
:ewtons ilonewtons :ewtonmetres ilooules ilopascals
010100020021000, =ow much heat will be re%uired to convert '# g of water at 1# degrees ( into saturated steam at '#0 !a? a) b) c) d) e)
2/'@*$31 C 2/*'0$3 C '2$@@ C 2+2/32@$2@ C 1*#/32# C
117
010100020021000 What is the sensible heat of 2 g of saturated steam at 1/100 !a? a) b) c) d) e)
##'3$ C 1#'2$'+ C 2/*+1$* C 1+$0@ C *+1$3 C
010100020021000 ind the sensible heat re%uired to raise 1' g of water at 0 degrees ( to the boiling point at @00 !a$ a) b) c) d) e)
#@'$12 C 11/++#$2+ C *2$+3 C 1'$'+ C '/*#2$31 C
010100020021000D f steam at 3*# !a/ having a dryness fraction of @'R/ is produced from saturated water at 3*# !a/ what amount of heat must be supplied per ilogram? a) b) c) d) e)
2/'2'$1+ Cg 2/10$+ Cg 2/0+$# Cg 2/0##$1* Cg 2/000$ Cg
010100020021000, =ow much heat must be supplied to 200 g of water at 20 degrees ( to mae steam at +#0 !a which is +*R dry? a) b) c) d) e)
2/03@$ C 0*/++0 C 1/**$2+ C 2/'2*$@+ C +/#0*$' C
010100020021000D Which of the following is the saturation temperature at '00 !a? a) b) c) d) e)
1'0$#+ 1#+$0 1#+$# 1#+$+# *01$3
degrees degrees degrees degrees degrees
(elsius (elsius (elsius (elsius (elsius
1030002010#00013$'0 R6$0+K21+$1 R61$0K2*''$ R62$0K*2$+3 R63$0K1#0 R$01K rom the steam tables find the following1) 2)
saturation temperature at 00 !a/ latent heat of 1 g of dry saturated steam at 3#0 !a/
118
3) ) #)
enthalpy of 1 g of dry saturated steam at *#0 !a/ sensible heat of 1 g of water at saturation temperature and a pressure of @00 !a/ the absolute pressure/ if the gauge pressure is +$* !a
Answers1) E degrees (elsius 2) E Cg 3) E Cg ) E Cg #) E !a 10#0002002000 eedwater at a temperature of III degrees (elsius is supplied to a boiler operating at IIIII !a$ 1)
(alculate the sensible heat re%uired/ to raise one g of feedwater to the boiling point at that pressure$
2)
(alculate the latent heat re%uired per g of feed water to change the feed water to dry saturated steam at this pressure$
Answers1) E C "8ound to 3 decimal places) 2) E C "8ound to 3 decimal places) $5>577>7<:5 W7,J !8,5 :>J1"10/1#/1) :>J2"2@/*1/1) $57<:5 DJ 7AB,1"21)K7BJ2K DJ 7AB,2"21)K7BJ1K =57E7AB,1"@)K =W7E7AB,2"@)K =Q5E7AB,1"10)K W7,JE7AB,2"2)K !8,5E7AB,1"2)K A:51E=576=W7K A:52E=Q5K $8,5>B75 .Answer 1 E./A:51-3/0$01 .Answer 2 E./A:52-3/0$01 10#00020021000 A boiler produces dry saturated steam at IIIII !a from feed water at III degrees (elsius$ =ow much heat must be supplied per g of feedwater to convert it to steam? Answer E C "8ound to 3 decimal places) $5>577>7<:5 !
119
7 :1"33/'@/1) :2"21/31/1) $57<:5 DJ 7AB,1"21)K7BB75 .Answer E./=-3/0$01 10#0002002000 eedwater at III degrees (elsius is supplied to a boiler operating at IIIII !a$ 1)
=ow much sensible heat is re%uired per g of feedwater to raise the temperature of the feedwater to the boiling point at that pressure?
2)
=ow much latent heat is re%uired per g of feedwater/ to convert it into dry saturated steam at this pressure?
Answers1) E C "8ound to 3 decimal places) 2) E C "8ound to 3 decimal places) $5>577>7<:5 W7,J !8,5 :>J1"20/2@/1) :>J2"3*/*3/1) $57<:5 DJ 7AB,1"21)K7BJ2K DJ 7AB,2"21)K7BJ1K =57E7AB,1"@)K =W7E7AB,2"@)K =Q5E7AB,1"10)K W7,JE7AB,2"2)K !8,5E7AB,1"2)K A:51E=576=W7K A:52E=Q5K $8,5>B75 .Answer 1 E./A:51-3/0$01 .Answer 2 E./A:52-3/0$01 10#00020021000 Determine the volume of I$I g of dry saturated steam at IIIII !a$ "8ound the answer to 3 decimal places) Answer E cubic metres $5>577>7<:5 JA55"1/@$@/0$1) !8,5 :>J1"1+/*0/1)
120
$57<:5 DJ 7AB,1"21)K7BJ1K !8,5E7AB,1"2)K 5GBJE7AB,1"#)K GB75 .Answer E./G577>7<:5 JA55"1/@$@/0$1) !8,5 :>J1"1+/*0/1) $57<:5 DJ 7AB,1"21)K7BJ1K 5GBJE7AB,1"#)K !8,5E7AB,1"2)K GB75 .Answer E./G577>7<:5 JA55"1$1/@$@/0$1) !8,5 :>J1"2+/'+/1) $57<:5 DJ 7AB,1"21)K7BJ1K =11E7AB,1"@)K !8,5E7AB,1"2)K ,:7=EJA55L=11K $8,5>B75 .Answer E./,:7=-3/0$01
10#00020021000 Determine the enthalpy of I$I g of water at III degrees (elsius$ "8ound the answer to 3 decimal places) Answer E C $5>577>7<:5 JA55"1/@$@/0$1) 7J!8 :>J1"11/2/1) $57<:5 DJ 7AB,1"21)K7BJ1K 7J!8E7AB,1"2)K ,:7=E7AB,1"@)K =,A7E,:7=LJA55K $8,5>B75
121
.Answer E./=,A7-3/$01 10#000200+000 Determine the values for steam at IIIII !a/ as1) 2) 3) )
sensible heat of the li%uid latent heat of vapori9ation volume of 1 g of dry saturated steam saturation temperature
Answers "8ound to 3 decimal places)1) E Cg 2) E Cg 3) E cu m ) E degrees (elsius $5>577>7<:5 ! :"#0/'+/1) $57<:5 DJ 7AB,1"21)K7BB75 .Answer 1 E./=-3/0$01 .Answer 2 E./=Q-3/0$01 .Answer 3 E./G577>7<:5 JA55"10/20/1) !8,5 ,:7= :>J1"3@/'1/1) TB74"0$*/0$+#/0$01) $57<:5 DJ 7AB,1"21)K7BJ1K =11E7AB,1"@)K =Q1E7AB,1"10)K !8,5E7AB,1"2)K ,:7=EJA55L"=11HTB74L=Q1)K $8,5>B75 .Answer E./TB74-3/0$01
122
10#00020021000 7he total enthalpy of II g of steam at IIIII !a is IIIIII$III C$ Determine the dryness fraction of the steam$ Answer E R "8ound to 3 decimal places) $5>577>7<:5 JA55"10/20/1) !8,5 ,:7= :>J1"3@/'1/1) 8(7"*0/+#/1) $57<:5 DJ 7AB,1"21)K7BJ1K !8,5E7AB,1"2)K =11E7AB,1"@)K =Q1E7AB,1"10)K ,:7=EJA55L"=11H"8(7100)L=Q1)K $8,5>B75 .Answer E ./8(7-3/0$01 10#00020021000 7he total enthalpy of II g of steam at IIIII !a is IIIIII$III C$ Determine the dryness fraction of the steam$ Answer E R "8ound to 3 decimal places) $5>577>7<:5 JA55"10/20/1) !8,5 ,:7= :>J1"3@/'1/1) 8(7"*0/+#/1) $57<:5 DJ 7AB,1"21)K7BJ1K !8,5E7AB,1"2)K =11E7AB,1"@)K =Q1E7AB,1"10)K ,:7=EJA55L"=11H"8(7100)L=Q1)K $8,5>B75 .Answer E./8(7-3/0$01
10#0002001000 5team enters a turbine at IIIII !a/ dry and saturated$ 7he steam is e&hausted from the turbine at III !a and it is IIR wet$ Determine the %uantity of heat used to do wor in the turbine$ "8ound to 3 decimal places) Answer E Cg $5>577>7<:5 !: !<>7 W<>7"#/2#/1)
123
:"0/'0/1) :1"1+/22/1) $57<:5 DJ 7AB,1"21)K7B7E7AB,2"2)K =QE7AB,1"11)K =7E"1006W<>7)100K =<>7E=7L=Q7K $8,5>B75 .Answer E./A:5W-3/0$01 10#00020021000 Determine the %uantity of heat re%uired/ to raise II$I g of water at III degrees (elsius/ to saturated steam at IIIII !a and II$IR dry$ Answer E C "8ound to 3 decimal places) $5>577>7<:5 JA55"3/20/0$1) 7,J! !8,5 8(7"*0/+#/0$1) :>J1"0/''/1) :>J2"12/21/1) $57<:5 DJ 7AB,2"21)K7BJ1K DJ 7AB,1"21)K7BJ2K =22E7AB,2"@)K =Q2E7AB,2"10)K =W1E7AB,1"@)K 7,J!E7AB,1"2)K !8,5E7AB,2"2)K =,A7EJA55L"=22H=Q2L"8(7100)6=W1)K $8,5>B75 .Answer E./=,A7-3/0$01 10#0002001000 During a boiler test/ a boiler burned IIIIIII$I g of coal with a heating value of IIIII Cg$ 7he boiler generated IIIII g of dry steam at IIIII !a at saturated condition/ from feedwater at III degrees (elsius$ Determine the boiler efficiency$ Answer E R "8ound to 3 decimal places) $5>577>7<:5 (JA5 =7GB"20000/30000/1000) 5JA5"1000/@000/1000) !8,5 7,J!
124
,(4"*0/+#/1) :>J1"#3/*0/1) :>J2"1#/2/1) $57<:5 DJ 7AB,1"21)K7BJ1K DJ 7AB,2"21)K7BJ2K !8,5E7AB,1"2)K 7,J!E7AB,2"2)K =11E7AB,1"@)K =Q1E7AB,1"10)K =W2E7AB,2"@)K =<>7E5JA5L"=11H=Q16=W2)K =7:E=<>7,(4L100K (JA5E=7:=7GBK $8,5>B75 .Answer E./,(4-3/0$01 0#0#00020021000 A boiler supplies IIIII C of heat to the steam when IIIII C of heat are supplied$ Determine the boiler efficiency$ "8ound the answer to 3 decimal places) Answer E R $5>577>7<:5 =<>7"20000/2#000/100) =:"33000/3000/100) $57<:5 ,E"=<>7=:)L100K $8,5>B75 .Answer E./,-3/$01
Basic (oncepts A)out $atter 010100020021000 7he state of matter observed for a particular substance is dependent on its a) b) c) d) e)
si9e and shape temperature and pressure weight and length time and distance pressure and density
010100020021000, Jatter can best be defined as anything that a) b) c) d) e)
is visible with defined dimensions is invisible occupies space has shape has mass and occupies space
010100020021000D can be described in terms of its states/ physical
125
and chemical properties$ a) b) c) d) e)
An element A compound An atom Jatter A molecule
010100020021000( Jatter can e&ist in different physical states$ a) b) c) d) e)
one two three four five
010100020021000 7ransformations between states and properties of a matter are a) b) c) d) e)
impossible possible difficult infre%uent prohibitive
010100020021000( An e&le of an e&tensive property of a substance is a) b) c) d) e)
colour boiling point mass free9ing point density
010100020021000D Which is not an e&le of a physical property of a material? a) b) c) d) e)
its its its its its
colour boiling point odour reactive properties density
010100020021000( An e&le of a physical property is the a) b) c) d) e)
formation of smoe rusting of steel melting point of a substance burning of coal burning of wood
010100020021000D An e&le of a chemical property is the
126
a) b) c) d) e)
formation of steam from water melting point of a metal formation of ice from water formation of rust on a metal melting point of ice
010100020021000A 7he density of water is gml$ a) b) c) d) e)
1 2 3 #
010100020021000 An intensive "physical) property is one that is a) b) c) d) e)
dependent on the not dependent on dependent on the dependent on the dependent on the
amount of matter the amount of matter volume amount of mass amount of pressure applied
010100020021000A An e&tensive "physical) property is one that is a) b) c) d) e)
dependent on the not dependent on dependent on the dependent on the dependent on the
amount of matter the amount of matter volume amount of mass amount of pressure applied
010100020021000A Which of the following involves a chemical change? a)
burning natural gas
b)
melting steel
c)
sublimation of (< 2
d)
evaporation of alcohol
e)
the free9ing of water
010100020021000, Which is an e&le of a physical change in a material? a) b) c) d)
melting evaporation condensation sublimation
127
e)
all of the above
010100020021000A When the composition of a substance is not altered but its state is/ this is called a) b) c) d) e)
physical change chemical change physical property chemical property homogeneous property
010100020021000 An e&le of a physical change is a) b) c) d) e)
specific heat melting of lead burning of coal rust on steel burning of fuel oil
010100020021000D When the composition of a substance is altered and as a result it is no longer the same substance/ this is called a a) b) c) d) e)
physical property chemical property physical change chemical change heterogeneous change
010100020021000( An e&le of a chemical change is a) b) c) d) e)
melting of lead steam to water burning of coal water to ice heat of fusion
010100020021000D f a substance goes through a process that changes its composition so that it is no longer the same substance/ then it is said that the substance has undergone a a) b) c) d) e)
physical change heterogeneous change homogeneous change chemical change physical property
010100020021000, Which of the following represent homogenous mi&tures? a) b)
an emulsion of oil and water flue gas
128
c) d) e)
a mi&ture of sand and water metal alloys b and d
010100020021000( !ure substances are a) b) c) d) e)
homogeneous and heterogeneous homogeneous mi&tures compounds and elements heterogeneous mi&tures varied in composition
010100020021000D Any substance composed of two or more elements which are combined chemically is a a) b) c) d) e)
chemical change physical change mi&ture compound molecule
010100020021000, Any substance which cannot be broen down into other substances or ingredients by chemical means is a) b) c) d) e)
a mi&ture a compound an electron an atom an element
010100020021000 Any substance which consists of different elements or compounds/ or both is a) b) c) d) e)
an atom a mi&ture a solution an element a compound
010100020021000, f there is a material that cannot be separated into any other individual materials by any chemical means/ then it is called a) b) c) d) e)
an atom a compound a mi&ture a molecule an element
010100020021000( A material made up of two or more elements in chemical
129
combination represents a a) b) c) d) e)
chemical change physical change compound mi&ture molecule
010100020021000 Any material made up of distinct elements/ compounds/ or both/ not chemically combined with each other represents a) b) c) d) e)
an atomic structure a mi&ture a molecule an element compound a compound
010100020021000( An e&le of a homogeneous mi&ture is a) b) c) d) e)
emulsion sand and water flue gas soda water acid
010100020021000A An e&le of a homogeneous mi&ture of solid elements is a) b) c) d) e)
metal alloy stainless steel concrete plastic wood
010100020021000A An e&le of a heterogeneous mi&ture is a) b) c) d) e)
sand and water soda water acid flue gas metal alloys
010100020021000, An e&le of a heterogeneous mi&ture is a) b) c) d) e)
acid flue gas metal alloys soda water oil and water emulsion
010100020021000A 7he !eriodic 7able lists all of the nown
130
a) b) c) d) e)
elements mi&tures compounds matter substances
010100020021000( 7he periodic table a) b) c) d) e)
arranges elements in e%ual numbers of columns and rows arranges elements in descending order of atomic number reflects the similar chemical properties of some elements has si&teen distinct groups provides no information besides the chemical symbol of the element
S'etching Fundamentals 010100020021000( n order for a setch to loo lie the obect it represents we a) b) c) d) e)
draw the setch to scale use as much detail as possible mae the setch in proportion use a number of different views use colours throughout the setch
010100020021000, 8elative to setching detail we should a) b) c) d) e)
use as much detail as possible show detail with colour wherever possible use at least three views of the obect show as many sectional views as possible use as little detail as possible
010100020021000 oundation or centre lines of a setch should be a) b) c) d) e)
very bold and e&tended made at the very beginning of the setch made for one view and not e&tended to other views broen lines/ not continuous always done to scale
010100020021000D
are to some scale be very bold must all show the obect outline
131
d) e)
show the main proportion of the setch should show at least three views for proection
010100020021000, A flow diagram uses to represent e%uipment$ a) b) c) d) e)
broen lines thin lines pictures coloured dots symbols
010100020021000D are used to indicate flow direction in a flow diagram$ a) b) c) d) e)
5ymbols 5igns Jarers Arrowheads !oints
010100020021000( n a piping layout/ line setches are used$ a) b) c) d) e)
broen thic single light coloured
010100020021000A n order to show all sides of an obect being setched the number of views re%uired is a) b) c) d) e)
si& three one two eight
010100020021000( When proecting views of an obect/ the ey view is the a) b) c) d) e)
bottom view right side view front view plan view left side view
010100020021000 7he plan view of an obect is actually the a) b)
front view top view
132
c) d) e)
left side view right side view bottom view
010100020021000, 7he three most commonly used views in drawing are a) b) c) d) e)
front/ front/ front/ front/ front/
bac/ side bac/ bottom bottom/ side plan/ bottom plan/ side
010100020021000D Bines used to indicate distance between two points on a setch are called a) b) c) d) e)
obect lines e&tension lines centre lines dimension lines hidden lines
010100020021000A An ellipse is the result of a) b) c) d) e)
viewing a circle obli%uely scribing an arc with a compass using a protractor to scribe an arc scribing an arc of 3'0 degrees cutting round bar6stoc at @0 degrees
010100020021000D A protractor is used to a) b) c) d) e)
measure circles scribe arcs form ellipses measure angles replace tri6s%uares
010100020021000 A drawing instrument commonly used to draw parallel lines is the a) b) c) d) e)
protractor triangle compass rule scribe
010100020021000D 7he verte& is otherwise nown as a) b)
a 30/ '0 degree triangle any angle formed by two lines
133
c) d) e)
the starting point of an ellipse the point of intersection of two lines the plan view of an obect
010100020021000 A pentagon has sides$ a) b) c) d) e)
ten five si& eight more than eight
010100020021000A An octagon has sides$ a) b) c) d) e)
eight si& five ten more than ten
010100020021000A A setch section is used to show a) b) c) d) e)
a necessary detail a particular view of an obect the scale of a setch the material of construction an actual dimension of the setch
010100020021000, 7o show materials of construction in a setch we can use a) b) c) d) e)
colour coding as per the :!A shading cross6hatching but not hatching A5 colour coding section lining
010100020021000( 5ection lines used to indicate specific construction material should generally be drawn at an angle of a) b) c) d) e)
@0 30 # '0 1#
degrees degrees degrees degrees degrees
010100020021000A 7he body responsible for standardi9ing symbols used to indicate materials of construction in a setch is the a) b) c)
American 5tandards Association A:5 5<
134
d) e)
A5J, (anadian 5tandards Association
&riting Fundamentals I * Sentences 010100020021000 When a sentence is easy to understand at its first reading/ we can say it has good a) b) c) d) e)
punctuation clarity conciseness correctness fragmentation
010100020021000( 7he term given to using the minimum number of words to e&press an idea is a) b) c) d) e)
predication clarity conciseness correctness agreement
010100020021000A A sentence is a complete thought and what we say about the subect is called the a) b) c) d) e)
predicate sentence fragment antecedent conunction sentence fusion
010100020021000D 5entences unable to e&press a complete thought/ otherwise nown as a sentence/ are to be avoided$ a) b) c) d) e)
possessive partial run6on fragmented confused
010100020021000, When two or more complete thoughts are punctuated into one sentence the sentence is nown as a a) b) c) d)
fragmented sentence partial sentence possessive sentence confused sentence
135
e)
run6on or fused sentence
010100020021000D 7he part of a sentence which must agree with its antecedent in number/ gender or person is the a) b) c) d) e)
subect antecedent verb pronoun adective
010100020021000( f the subect of a sentence is singular and the verb is plural/ we have what is nown as a a) b) c) d) e)
partial sentence run6on sentence lac of agreement confused sentence fragmented sentence
010100020021000A A more forceful and concise voice term is a) b) c) d) e)
active subective possessive responsive passive
010100020021000D When we wish to avoid blaming a person we should use a) b) c) d) e)
an active voice sentence a recessive voice sentence an aggressive voice sentence a passive voice sentence a neutral sentence
010100020021000( Words which refer to generali9ations/ physical obects and concepts are nown as a) b) c) d) e)
abstract words vague words concrete words generali9ation words passive words
010100020021000 An ideal sentence should be appro&imately a) b)
10 to 1# words long 1# to 20 words long
136
c) d) e)
2# to 30 words long # to 10 words long 30 to 3# words long
010100020021000, (hoose the word below which is the correct representation of a possession word$ a) b) c) d) e)
you;re whose they;re it;s anybody;s
010100020021000 Words which a computer cannot spell6chec are a) b) c) d) e)
antonyms homonyms synonyms pseudonyms harmonyms
010100020021000( A punctuation mar not used with pronouns is the a) b) c) d) e)
colon semi6colon apostrophe hyphen comma
010100020021000A A noun which means .rule. or .law. is a) b) c) d) e)
principle debt principal predicate mandate
010100020021000 A punctuation mar which separates complete thoughts in a sentence is the a) b) c) d) e)
hyphen semi6colon colon period comma
010100020021000A When introducing formal lists in a report/ we normally use a a)
colon
137
b) c) d) e)
hyphen double dash semi6colon semi6colon and comma
&riting Fundamentals II * Paragraphs 010100020021000 A good technical paragraph will contain appro&imately a) b) c) d) e)
two to four sentences four to seven sentences seven to twelve sentences twelve to fifteen sentences fifteen to twenty sentences
010100020021000 (ustomarily/ all good paragraphs have a a) b) c) d) e)
clincher sentence ey sentence spatial opening introductory paragraph summary sentence
010100020021000( When ey information is placed at the beginning of a paragraph the reader may a) b) c) d) e)
glean all possible information from the first sentence be re%uired to read all remaining sentences read more efficiently ignore the information contained in the paragraph not have to mae decisions about what is important
010100020021000, A paragraph development pattern which may be illustrated by a diamond shape will have a) b) c) d) e)
a large number of sentences spatial content a chronological development pattern cellular content a clincher sentence
010100020021000 When paragraph sentences all relate to the same ey idea we say the paragraph has a) b) c) d) e)
coherence unity configuration parallel structure repetition
138
010100020021000A f paragraph ideas are arranged in a logical/ orderly se%uence/ the paragraph will be a) b) c) d) e)
coherent spatial undeveloped parallel in structure transitional
010100020021000D Words used to improve the coherence of a paragraph are termed a) b) c) d) e)
adectives repetitives conunctives transitions prepositions
010100020021000,
transitional e&pressions pronouns repetition comparison and contrast parallel structure
010100020021000A 7he five W;s and = used in an introductory paragraph answer what is commonly called a) b) c) d) e)
the ournalistic %uestions paragraph development paragraph conclusion paragraph chronology article purpose
010100020021000( 7he scope/ origin and purpose of a report should be covered a) b) c) d) e)
in the opening paragraph conclusion in an opening .reference. within the opening paragraph by a summary by a preface
010100020021000A
very few readers will read the complete report essays tend to have a greater variety of readers authoring a report is easier than authoring an essay the essay has much more specific detail
139
e)
a report is of greater length
010100020021000, An acronym used in paragraph development is a) b) c) d) e)
:!A (A
010100020021000( 7he five methods of paragraph development are a) b) c) d) e)
spatial/ comparison/ process/ reasons/ and chronological contrast/ e&les/ process/ comparison/ and reasons process/ reasons F e&les/ contrast F comparison/ spatial/ and chronological renns/ reasons/ process/ comparison/ and contrast deductive/ inductive/ process/ introductory/ and spatial
010100020021000A !ositioning of places or obects during paragraph development is termed a) b) c) d) e)
spatial reasons and e&les comparison chronology contrast
010100020021000( !aragraph development involving similarities and differences between obects/ people or ideas is a) b) c) d) e)
deductive process comparison and contrast inductive reasons and e&les
010100020021000( When developing a paragraph using contrast and comparison/ the similarities and differences should be a) b) c) d) e)
at least at least at least not more not more
five of each two of each three of each than si& of each than four of each
010100020021000 When writing a paragraph on how to mae or do something/ the development is called a)
constructive development
140
b) c) d) e)
process development instructive development illustrative development spatial development
&riting $emos 010100020021000 7he three possible purposes for writing a memo are recording/ acting/ and a) b) c) d) e)
re%uesting informing e&plaining scheduling instructing
010100020021000D Jemos are organi9ed effectively for the benefit of the a) b) c) d) e)
Alberta oiler 5afety (ouncil !lant manager creator of the memo reader
010100020021000 Jemo format is used in written communication a) b) c) d) e)
to present a recommendation or re%uest an action for short correspondence between members within an organi9ation to convey the year;s activities and how the department met its goals to order parts for repairing the office machines as a method of initiating preventive maintenance
010100020021000, A standard memo has a number of main parts or components/ the number being a) b) c) d) e)
# * 3 @
010100020021000A 7he most important part of a memo is the a) b) c) d)
body subect line receiver identification sender identification
141
e)
organi9ation identification
010100020021000( Which of the following is an advantage of using a memo? a) b) c) d) e)
t t t t t
is easy to write$ is distributed %uicly$ provides a written record$ is easy to file$ is very informal$
010100020021000( 7he part of a memo which identifies the content and purpose of a memo is the a) b) c) d) e)
body introduction subect line salutation heading
010100020021000 7he subect line should include a) b) c) d) e)
the main idea of the memo e&pressed in a sentence the main subect and purpose of the memo e&pressed in a phrase the purpose of the memo e&pressed as a complete sentence the name of the receiver the date the memo was written
010100020021000A Jemos that convey routine messages should begin with a) b) c) d) e)
the main point a neutral statement an attention getter a %uestion a reference
010100020021000 When organi9ing a memo/ they should follow a clear middle/ ending/ and a) b) c) d) e)
introduction beginning salutation reference purpose
010100020021000, A memo writer should close his memo by inviting %uestions and a)
thaning the receiver for his time
142
b) c) d) e)
re%uesting a response by some due date or time ending with a %uestion always copying another person leaving a contact number
010100020021000( 7he content of effective memos is written a) b) c) d) e)
in in in in in
paragraphs lists paragraphs and lists telegraphic style point form
010100020021000( 7he middle of a memo provides the a) b) c) d) e)
obectives e&pected action specifics of the topic recommendation purpose
010100020021000,
the length of the memo the purpose of the memo the impact of the memo the importance of the memo hisher interaction with the reader
010100020021000D 7he first step in memo writing is a) b) c) d) e)
deciding who the memo should be directed to establishing the length of the memo deciding who should receive copies of the memo deciding the main purpose of the memo estimating the costs involved
010100020021000A t is important that a memo a) b) c) d) e)
be adapted to the reader simply arouses curiosity not be considered as the final document contain all the necessary details be copied to someone else besides the recipient
010100020021000, When using memo content headings/ the number of lines left above the heading should be
143
a) b) c) d) e)
two none four five three
010100020021000( Gisual cues such as bolding and underlining will mae a memo format a) b) c) d) e)
easier to understand white space more effective more visible to the reader easier to follow have more impact
010100020021000A Jemo white space a) b) c) d) e)
separates information thereby improving readability should be minimi9ed maes the memo more intimidating will necessitate longer paragraphs does not affect memo purpose
010100020021000, When the points in a memo list are se%uential a) b) c) d) e)
closed bullets should be used open bullets should be used asteriss should be used hyphens should be used numbers should be used
010100020021000 A memo paragraph should not e&ceed a) b) c) d) e)
three to four lines eight to ten lines five to eight lines twelve lines five lines
010100020021000( Jemo .rivers of white. are a) b) c) d) e)
appealing to readers the result of unustified margins spaces between words difficult to eliminate the same as ragged margins
010100020021000, Which of the following headings is acceptable in a report? a)
Attention
144
b) c) d) e)
ody Discussion 7heory ntroduction
010100020021000( Which sentence is parallel in construction? a) b) c) d) e)
=e was =e was =e was =e was =e was notes$
a good surveyor/ but very poor at eeping notes$ a good surveyor/ but very poor at notes$ a good surveyor/ but a poor note eeper$ good at surveying/ but poor at notes$ a good surveyor/ but not very good at eeping
Industrial !egislation 010100020021000( 7he first (anadian province to enact boiler and pressure vessel legislation was a) b) c) d) e)
010100020021000A A body which was formed in 1@1@ for the promotion of safety and uniformity in the construction/ installation/ and inspection of boilers and pressure vessels was the a) b) c) d) e)
:ational oard of oiler and !ressure Gessel nspectors >nderwriter Baboratories (anada A5J, (5A :!A
010100020021000( 7he purpose of the 5afety (odes Act and ,ngineer;s 8egulations is to a) b) c) d) e)
help control the power plant personnel help plants operating at high efficiency ensure safe installation and operation of power plants ensure optimum performance of any boiler operating ensure proper e&aminations are conducted
010100020021000 7he main purpose of the 5afety (odes Act is a) b) c) d)
the promotion of efficient combustion the promotion for safety of life and property the prevention of air pollution to promote efficient boiler operation
145
e)
to promote %ualified training for operators
010100020021000, 7he Act and 8egulations do not apply to a) b) c) d) e)
a a a a a
heating plant having power plant having a heating plant having heating plant having power plant having a
a boiler rating of 20 W or more boiler rating of 20 W or less a rating of 2/#00 W or more a boiler rating of 30 W or less boiler rating of 10 W or less
010100020021000, 7he code that regulates mechanical refrigeration is a) b) c) d) e)
A5J, 5ection A5J, 5ection G A5J, 5ection G (5A 6#1 (5A 6#2
010100020021000( 8elative to boilers and pressure vessels/ a code which has not been adopted by all the provinces is a) b) c) d) e)
A5J, through U (5A #1 :!A A:5 $31$# (5A #2
010100020021000A When a fitting is to be registered within a urisdiction a) b) c) d) e)
an application must be made to the (hief nspector drawings must be submitted to the A5J, the manufacturer need not have a %uality control program in place application fees will be waived the (5A must approve the design
010100020021000( 7he province of Alberta currently has various certificates of competency relative to !ower ,ngineering and boiler operation/ the number being a) b) c) d) e)
' + 10 12
010100020021000D
hours
146
b) c) d) e)
the time specified in the union agreement 0 minutes no period of time 1# minute intervals
010100020021000 7he principal reason you should eep a boiler plant log boo or log sheet is to a) b) c) d) e)
satisfy the oiler nspector provide a record of boiler operation and maintenance provide the operator with an alibi when an accident occurs provide proof that the operator visited the boiler room at the time stated satisfy the chief engineer
010100020021000A A ourth (lass ,ngineer;s (ertificate of (ompetency %ualifies the holder to tae charge of a power plant not e&ceeding a) b) c) d) e)
1/000 100 #00 2/#00 #/000
W W W W W
010100020021000( A fitting as defined in the Act means a) b) c) d) e)
a a a a a
stac fan gauge glass feedwater regulator pump
010100020021000D After an initial inspection of a boiler or pressure vessel/ an Alberta identification number preceded by the letter .A. in a / shall be stamped on the boiler or pressure vessel$ a) b) c) d) e)
s%uare rectangle octagon circle he&agon
010100020021000, A candidate for a welder;s performance %ualification card a) b) c)
must have a high school diploma must have successfully completed a vocational course need not be able to write
147
d) e)
re%uires at least three years practical e&perience as a welder must first pass a performance %ualification test
010100020021000, A welder !erformance Tualification test a) b) c) d) e)
may result in the destruction of completed test coupons will last the lifetime of the welder/ if passed is usually not re%uired by welders woring on boilers and pressure vessels is often the most e&pensive of all e&aminations/ inspections/ or both must be completed before the welder obtains his or her performance %ualification card
010100020021000 When applying to write a certificate of %ualification e&amination the candidate/ when applicable/ may have to a) b) c) d) e)
attend a teaching institute as a full6time day student be in possession of the ne&t lower class of certificate enclose an e&amination fee of at least S100$00 pass a medical e&amination pass both a written and an oral e&amination
010100020021000 ,&pected conduct during an e&amination for a certificate of competency is stated in a) b) c) d) e)
(5A #1 the ,ngineers; 8egulations of Alberta Alberta;s 5afety (odes Act (5A #2 the :!A
010100020021000D Definitions such as shift engineer/ chief engineer/ and fireman are found in a) b) c) d) e)
Alberta;s 5afety (odes Act the A5J, code 5ection G (5A #1 Alberta;s ,ngineers; 8egulations municipal codes
010100020021000 =eating boiler means a) b) c) d)
a boiler where steam is produced at a pressure greater than 103 !a a boiler where steam is produced at a pressure of 103 !a or less a boiler where water is heated to a pressure e&ceeding 1/100 !a and a temperature of 121 degrees (elsius a boiler in which only hot water is produced
148
e)
a boiler which does not re%uire a sight glass
010100020021000A 8611 refrigerant belongs to the following group of refrigerantsa) b) c) d) e)
Qroup Qroup Qroup Qroup Qroup
A1 A2 A3 1 2
&+$IS * Part I * (lassication o# (ontrolled Products 010100020021000( !an6(anadian law means urisdiction a) b) c) d) e)
in all areas of the country e&cept municipalities in off6shore areas only in all provinces and territories over federal areas only in foreign countries
010100020021000A Displaying an appropriate ha9ard symbol is a) b) c) d) e)
an important part of the supplier label the responsibility of the employee done only after a decanting process necessary during transportation only necessary no matter how small the %uantity
010100020021000D 7he final component of the W=J5 system is a) b) c) d) e)
the supplier label an J5D5 a worplace label employee training a decanting procedure
010100020021000A A controlled product which is e&empt from W=J5 would be a) b) c) d) e)
materials regulated under the !est (ontrol !roducts Act a compressed gas having a critical temperature of less than #0 degrees ( any li%uid having a flash point of less than 3*$+ degrees ( any product not under control of the 7DQ Act a product prone to spontaneous combustion
010100020021000 7he application of W=J5 is primarily governed by the
149
a) b) c) d) e)
010100020021000, W=J5 contains three basic components1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 2/ 2/ 1/ 1/
employee training governing legislation confidentiality of information supplier and worplace labels material safety data sheets 2/ / 3/ 3/ /
3 # #
010100020021000A ully e&empted materials from the controlled products regulation include1$ 2$ 3$ $ #$ a) b) c) d) e)
2/ 2/ 1/ 1/ 3/
decanted products tobacco and tobacco products wood and wood products e&plosives manufactured articles 3/ / 2/ 3/ /
# # 3 #
010100020021000( (ontrolled products are not covered under W=J5 regulations when subect to a) b) c) d) e)
=a9ardous Jaterials nformation 8eview 8egulation "=J88) (ontrolled !roducts 8egulation "(!8) 7ransportation of Dangerous Qoods 8egulation "7DQ8) =a9ardous !roducts Act "=!A) ngredient Disclosure Bist 8egulation "DB8)
010100020021000 7he Jaterial 5afety Data 5heet is supplied by the a) b) c) d) e)
150
010100020021000D Whether or not a product is deemed to be a controlled product is determined by the a) b) c) d) e)
ngredient Disclosure Bist 7ransportation of Dangerous Qoods 8egulation =a9ardous Jaterials nformation 8eview 8egulation =a9ardous !roducts Act (ontrolled !roducts 8egulation
010100020021000A According to W=J5 Begislation/ ha9ardous waste re%uires 1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 2/ 1/ 2/ 3/
identification maring worer education specific supplier labels J5D5 2/ 3/ / / /
3 # # #
010100020021000, nfectious material is a controlled product of (lass a) b) c) d) e)
A ( D
010100020021000( A (lass .A. product would be a) b) c) d) e)
a li%uid with a flash point of less than 3*$+ degrees ( a solid which ignites readily and burns with a self6sustaining flame a product which is normally a gas below #0 degrees ( any dangerous goods (lassed as $1 under DQ 8egulations diben9oyl pero&ide
010100020021000 An e&le of a (lass .(. o&idi9ing material would be a) b) c) d) e)
charcoal starter cubes butyl hydropero&ide calcium carbide sodium cyanide hydra9ine
010100020021000,
151
Along with the si& classes of controlled products there are related W=J5 ha9ard symbols$ a) b) c) d) e)
' 3 @ * +
010100020021000, A (lass .. Division # ha9ardous material would be a) b) c) d) e)
gasoline diesel fuel reactive flammables compressed hydrogen flammable aerosol
010100020021000 (lass D controlled products has two Divisions which are subdivided because of their a) b) c) d) e)
flammability to&icity e&plosiveness o&idi9ing abilities reactivity
010100020021000 7he common way of e&pressing corrosiveness is a) b) c) d) e)
a neutralising number p= alalinity acidity turbidity
010100020021000D 5ulphuric acid/ such as found in a car battery/ is a strong acid with a p= value near to the value a) b) c) d) e)
* @ 1 0 +
010100020021000A >nder Division 3/ (lass D/ ioha9ardous nfectious Jaterials/ ris Qroup is the ris group$ a) b) c) d)
low moderate high very high
152
e)
non
010100020021000( 7o be classified as a flammable li%uid it must have a flash point of a) b) c) d) e)
more less less more less
than than than than than
3*$+ degrees ( #0 degrees ( 3*$+ degrees ( #0 degrees ( 21 degrees (
010100020021000 7he term B( refers to a #0 a) b) c) d) e)
lethal dose which results in death of #0R of the test population lethal concentration which resulted in death of #0R of the test population lethal concentration diluted to half strength and supplied to the test population legal e&posure in which #0R of the test population survived legal concentration in which #0R of the test population survived
&+$IS * Part II * !a)elling o# (ontrolled Products 010100020021000D 5upplier labels are normally a) b) c) d) e)
s%uare colour coded bordered with a solid line prepared by the manufacturer of the product either rench or ,nglish/ not both
010100020021000( 7he product identifier is taen to mean a) b) c) d) e)
the supplier list of riss associated with a particular product a complete list of contents in the product the actual product name/ code/ or brand name the actual product uses the actual manufacturer of the product
010100020021000 Who must label the pacages containing controlled products? a) b) c)
the industrial hygienist the supplier of the products any member of the
153
d) e)
the consignee "receiver of the goods) the plant owner
010100020021000A 7he distinct W=J5 border is re%uired on a) b) c) d) e)
the supplier label the worsite label all decanted controlled products controlled products less than 10 g the material safety data sheet
010100020021000( A worplace label a) b) c) d) e)
must have a hatched border is always red in colour is almost always re%uired when decanting occurs need show only ris phrases consists of two main parts
010100020021000( (orrect use of a worplace label is mainly the responsibility of a) b) c) d) e)
the employer the transporter the employee plant safety committee the end user
010100020021000D 7he worplace label re%uires identification in these specific areas1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 1/ 2/ 1/ 2/
reference to J5D5 W=J5 ha9ard symbols basic ris phrase product identifier distinctive hatched border / 2/ 3/ 3/ /
# #
010100020021000 8elative to graphics/ a supplier label must a) b) c) d) e)
be s%uare be proportional to the graphics show the graphics in colour have the graphics covering at least '0R of the label be in landscape format
154
010100020021000D 7he first indicator of a product;s ha9ard is the a) b) c) d) e)
J5D5 worplace label colour of the container supplier label supplier identifier
010100020021000A A supplier label can a) b) c) d) e)
be replaced by a worplace label have a solid border at certain times show no more than three symbols be removed at any time never be rectangular
010100020021000
ha9ard signs attached to the container rectangular hatched border surrounding specific information about the product distinctive W=J5 ha9ard symbols enclosed in a bold solid rectangular border s%uare hatched border containing ha9ard symbols bold statement referring to the material safety data sheet
010100020021000, Which are the 3 immediate warning signs on the supplier label? 1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 1/ 1/ 2/ 2/
high ris phrases the ha9ard symbol for acute to&icity the distinct W=J5 border the product identification the ha9ard symbol for corrosive materials 2/ 3/ / 3/ 3/
3 # #
010100020021000D 5upplier labels normally must contain information in a) b) c) d) e)
@ + * 3
specific specific specific specific specific
areas areas areas areas areas
155
010100020021000( (olour coding in the worplace can be used and colours must be a) b) c) d) e)
as per W=J5 colour stipulations as per :!A colour stipulations any colour as long as they are fully understood by the worers according to (5A stipulations relative to the original container colour
010100020021000 During manufacture of a controlled product which is slated for e&port/ the first W=J5 item covered would be a) b) c) d) e)
container colour a worplace label attachment a supplier label attachment an J5D5 attachment an e&port permit
010100020021000( 7o comply with W=J5 legislation/ supplier labels must be provided in a) b) c) d) e)
,nglish only rench and ,nglish on the same label rench and ,nglish on the same label or both a rench and ,nglish version separately the language of maority at the worsite rench and ,nglish on separate labels
010100020021000A As an e&ception/ products at the worplace destined for e&port re%uire a) b) c) d) e)
a worplace label only a supplier label only no labels since they fall under 7DQ both a worplace label and a supplier label a material safety data sheet
010100020021000, Which of the following is a ris phrase? a) b) c) d) e)
eep in a cool place use only in properly ventilated area wear eye protection avoid contact with eyes highly flammable
010100020021000A When bul shipments are made/ the product ha9ard information can be sent to the purchaser
156
a) b) c) d) e)
in on on by by
writing a worplace label the ill of Bading word of mouth telephone
010100020021000, 7he colour"s) which isare reserved for e&plosives and not used on W=J5 symbols isare a) b) c) d) e)
greenwhite yellow red blue orange
010100020021000D 7he labelling re%uirements for a 1 litre container of controlled product for use by one worer during a shift are a) b) c) d) e)
a worsite label containing 3 necessary elements no label re%uired ha9ardous symbols only a clear identifier or product D reference to the J5D5
010100020021000, f an actual supplier label cannot readily be affi&ed to a container of a controlled product/ such as a very small vial or cylinder/ a may be used on the container instead$ a) b) c) d) e)
red mar blac ribbon letter U cross6hatched line tag
&+$IS * Part III * $aterial Sa#et% Data Sheets 010100020021000D An J5D5 consists of a number of basic areas/ the number being a) b) c) d) e)
' # 12 @ *
010100020021000 A controlled product may enter the body by ingestion/ inhalation and a)
through an ear
157
b) c) d) e)
through the sin tract sensiti9ation synergistically through dead cells such as hair/ nails/ etc$
010100020021000, !ropane has a vapour density of a) b) c) d) e)
1$0 0$' 1$' 0$' 1$'
and and and and and
will will will will will
rise rise rise fall fall
in in in in in
air air air air air
010100020021000 7he BB and >B of natural gas are a) b) c) d) e)
# and 10 percent 2 and * percent 3 and + percent 20 and 2* percent @ and 3+ percent
010100020021000D An J5D5 must be updated a) b) c) d) e)
annually every # years at every product shipment every time there is a maor change or regardless every 3 years every 3 years
010100020021000A Acute to&icity is best described by the term a) b) c) d) e)
immediately dangerous materials substances that have chronic effects on a worer;s health to&icity caused by bacteria and viruses materials whose effects are not readily noticeable until years after e&posure poisonous products entering into the body by ingestion
010100020021000, tems disclosed on the J5D5 under physical data include1$ 2$ 3$ $ #$ '$ a) b) c) d)
flash point boiling point auto ignition temperature p= ha9ardous decomposition products degree of sin irritation
1/ / 1/ 1/
3/ #/ ' #/ ' 3 2/
158
e)
2/
010100020021000A Which of the following is correct? a) b) c) d) e)
All areas of the J5D5 must be completed J5D5 must be at least 3 pages long
010100020021000A A controlled product of BD
of 10 mgg when compared to an #0
BD of '0 mgg is #0 a) b) c) d) e)
more more less less less
lethal flammable lethal flammable reactive
010100020021000D 7he <,B of = 5 is 2 a) b) c) d) e)
100 ppm 30 degrees ( 30 minutes 10 ppm 1# minutes
010100020021000D Which of the following poses the greatest danger? a)
BD
of 1/00 mgg of body weight #0
b)
BD
of * mgg of body weight #0
c)
BD
of 20 mgg of body weight #0
d)
BD
of 0$1 mgg of body weight #0
e)
BD
of 1/01 mgg of body weight #0
010100020021000( or products to burn they must first be in the state$
159
a) b) c) d) e)
solid semi6solid vapour li%uid semi6li%uid
010100020021000D lammable li%uids and gases have very specific ranges over which they will burn if mi&ed with a) b) c) d) e)
another flammable li%uid natural gas diesel fuel air hydrogen sulphide
010100020021000A 7he term .respiratory tract sensiti9er. relates to a) b) c) d) e)
to&icological properties physical data reactivity data preventive measures ha9ardous ingredients
010100020021000 7raining programs must be evaluated a) b) c) d) e)
semi6annually annually bi6annually every three years %uarterly
010100020021000( !roof of a successful controlled products program is a) b) c) d) e)
worers having certificates of %ualification worers having seminarcourse diplomas worers woring safely and understanding controlled products an in6place safety policy records of safety audits
010100020021000D 7he main purpose of the =J8A is a) b) c) d) e)
ensuring facility J5D5 are ept up to date eeping the (A5 current producing items for the DB protecting manufacturer formulae evaluating controlled product mareting procedures
010100020021000D
160
An e&emption granted by the =a9ardous Jaterials nformation 8eview Act lasts a) b) c) d) e)
3 1 # 3 2
months year years years years
010100020021000( A proper employeeworer training program is best demonstrated by a) b) c) d) e)
passing an <=5 administered test with a minimum of '0R successful completion of a company program followed by a series of e&aminations submitted to W=J5 personnel proof of the worer;s ability to wor safety with and understand procedures regarding controlled products and systems a record of the worer;s absenteeism and number of accident reports random tests conducted without prior warning
010100020021000, 7he =a9ardous Jaterials nformation 8eview Act "=J8A) was developed to a) b) c) d) e)
create policy that would be passed through legislation review new products and determine to&icity lists with DB safeguard against information not being provided on and J5D5 review government policy and amend information passed on to consumers as change developed protect manufacturer;s secret formulas from being copied by others
010100020021000D !rotection of your health and safety while woring with controlled products is the responsibility of the a) b) c) d) e)
=a9ardous Jaterials nformation 8eview (ommittee
he (osts and E-ects o# &or'place In.uries 010100020021000, An annual report containing inury information is filed by the a) b)
A,!,A "Alberta ,nvironment !rotection F ,nhancement Act) A<=5A "Alberta
161
c) d) e)
<=5J "
010100020021000A Alberta Worers; (ompensation oard records indicate that the appro&imate average number of worplace fatalities occurring in the province may be about a) b) c) d) e)
2 per wee 2 per month 2@0 per year 2/000 per decade #0 per year
010100020021000D A factor that has a large impact on the outcome of a worer;s post accident recovery is his a) b) c) d) e)
pre6accident safety record life style off the ob support received from the immediate family attitude before and after the accident current financial situation
010100020021000, During worer rehabilitation the supervisor should a) b) c) d) e)
have as little contact as possible with the inured worer not inform the worer of investigation progress let the worer now the investigators are finding fault not as the worer for assistance in determining prevention methods assist the worer in seeing and obtaining support services
010100020021000A An employer must ensure the health and safety of his worers a) b) c) d) e)
reasonably and practicably before their probationary period e&pires only during times of production e&cept during company off6site activities as per the group life insurance policy
010100020021000 As soon as is practical after an incident the employer must notify the a) b) c) d) e)
A,!,A A<=F5 A!A W=J5 :!A
162
010100020021000( ndividual responsibilities for health and safety must be borne by a) b) c) d) e)
management only employees only all persons relative to the worplace owners only owners and the government
010100020021000( A high proportion of reported inuries comes from the age group of a) b) c) d) e)
2# 30 1' # ##
to to to to to
30 # 2# ## '#
010100020021000, During an inury related investigation by an
indefinitely until the officer arrives at the scene for a ma&imum of + hours long enough to attend to the victim until any serious safety ha9ards are corrected
010100020021000 7he
health ha9ards relative to woring with dangerous goods successful prosecutions under the Act ail sentences imposed to those who contravene the Act fines imposed to those individuals who contravene the Act company business licenses revoed for failure to comply with the Act
010100020021000( 7he ma&imum penalty for an <=F5 offence is a) b) c) d) e)
S1#0/000$00 one year in S1#0/000$00 S100/000$00 S2#0/000$00
fine ail fine and one year in ail fine and one year in ail fine
010100020021000A Ja&imum penalties for a first offence under the
163
a) b) c) d) e)
S1#0/000 fine or one year in ail or both one year in ail S1#0/000 fine one year probation one year;s ob suspension
010100020021000( 7he first step an employer should tae to reduce the negative effects of worplace inuries is a) b) c) d) e)
employ an on6site nurse ensure supervisors now how to contact emergency assistance have an effective health and safety program in place establish an appropriate number of trained first aid personnel inform his or her supervisors of the importance of maintaining close contact with any worer who may become inured
010100020021000D Whose responsibility is it to ensure that an emergency plan is in place to deal with incidents where inuries may occur? a) b) c) d) e)
5afety (ommittee
010100020021000( When a worer is inured on the ob/ his or her recovery and eventual return to wor may be most affected by his or her relationship with a) b) c) d) e)
the the his his the
boiler inspector W( officer or her supervisor or her family
Personal Protecti/e Equipment 010100020021000( 8elative to personal protective e%uipment it is the employer;s responsibility to a) b) c) d) e)
supply/ ensure usage/ and maintain wear/ care for/ and maintain supply and ensure usage supply only supply/ ensure usage/ care for/ and maintain
010100020021000D
164
5hatter resistant glass or plastic applies to a) b) c) d) e)
face shields goggles welding goggles safety glasses welding helmet lenses
010100020021000, A personal safety item still made out of asbestos is the a) b) c) d) e)
apron steel toed shoe shin protector elbow protector glove
010100020021000 7he type of breathing apparatus that incorporates a # minute cylinder to allow the user to escape a contaminated area is the a) b) c) d) e)
supplied air breathing apparatus remote air supply breathing apparatus filter type respirator gas mas self6contained breathing apparatus
010100020021000, ,mployers must ensure employees wear self6contained breathing apparatus; when a) b) c) d) e)
entering handling fighting entering there is content
a coal buner for repairs to&ic chemical dusts fires in the plant any confined spaces a danger to life or health due to reduced o&ygen
010100020021000 A personal protective device which can readily cause infection is the a) b) c) d) e)
steel toed shoe ear plug steel reinforced glove welding goggle ear muff
010100020021000A
proper training prior to use that the user be clean shaven daily they be self saniti9ing
165
d) e)
they comply with A5J, codes face mas pressure be maintained slightly negative
010100020021000D 7he statement- .An employer shall establish a code of practice governing the selection/ maintenance and use of respiratory protective e%uipment$. is made in a) b) c) d) e)
(5A #1 :!A 2@# <=F5 Act Qeneral 5afety 8egulations @@ (5A V@$
010100020021000A (anadian 5tandards Association V@$ covers a) b) c) d) e)
the selection of respirators the use of safety gloves hearing protection footwear safety committees
010100020021000( 7o chec the tightness of a gas mas a) b) c) d) e)
read the instruction boo for the gas mas as for information from the last person using it pinch the hose and breath deeply to suc the mas against the face chec the maintenance boo pressuri9e it with nitrogen
010100020021000D 7he filter type respirators will effectively protect from a) b) c) d) e)
all poisonous gases to&ic vapours hydrogen sulphide mineral dusts chemical fumes
010100020021000( !ositive pressure regulators connected to the face6piece of a breathing apparatus ensures a) b) c) d) e)
the user remains awae and alert cleanliness of the mas a positive pressure to eep to&ic air out total body protection a minimum air supply for '0 minutes
010100020021000A 8espiratory e%uipment that is not used routinely but is ept for emergency use must be inspected
166
a) b) c) d) e)
monthly yearly semi6annually weely daily
010100020021000D A piece of safety e%uipment responsible for protecting against harmful chemical fumes is a) b) c) d) e)
safety goggles nose plugs face shields gas mass filter type respirators
010100020021000 !aint should never be applied to hard hats because a) b) c) d) e)
to&ic fumes may be released it will weaen the plastic hats are already painted by the manufacturer different colours normally indicate varying ob positions in the plant anything/ even paint/ adds to the overall weight of the hard hat maing it uncomfortable
010100020021000D A breathing air supply may be re%uired by employees1$ 2$ 3$ $ a) b) c) d) e)
1/ 1/ 2/ 2/ 2/
when regenerating a softener when entering vessels or ducting that have contained anything other than air when entering an electrostatic precipitator that has been bypassed for repairs in a vessel that has been purged with nitrogen 3 3/ 3 3/
010100020021000D =ard hat suspension minimum clearance is a) b) c) d) e)
0$# inch 0$*# inch 1 inch 1$2# inches 1$# inches
010100020021000( 7he minimum o&ygen partial pressure allowed before breathing apparatus is re%uired is
167
a) b) c) d) e)
# !a 22 !a 1+ !a 1# !a 13 !a
010100020021000D A 5elf6(ontained reathing Apparatus must have a capacity of at least a) b) c) d) e)
1# '0 # 30 10
minutes minutes minutes minutes minutes
010100020021000( 7he pressure in a fully charged 5elf6(ontained reathing Apparatus is a) b) c) d) e)
31$03 !a 101$3 !a 31/030 !a 10/130 !a 1+/#00 !a
010100020021000, A disease caused by mineral dust that converts healthy lung tissue into fibrous or scar tissue is nown as a) b) c) d) e)
cystitis neurosis laryngitis nephritis silicosis
Isolation o# $echanical and Electrical Equipment 010100020021000( 7he employer must be willing and prepared to bear the cost of necessary procedures and not allow any sort of shortcuts when it comes to a) b) c) d) e)
annual shutdowns 5afety (ommittee formation isolation of e%uipment e%uipment overhaul scheduling production
010100020021000 8elative to e%uipment isolations/ the items which may re%uire regular updating as wor progresses are the
168
a) b) c) d) e)
Do :ot
010100020021000, f a person is not sure a piece of e%uipment is safe to wor on/ he or her should a) b) c) d) e)
as his or her foreman if it is safe chec the isolator;s name on the permit chec with a co6worer before proceeding rely fully on the permit information as a %ualified worer to indicate and e&plain the points of isolation
010100020021000D 5afety meetings should routinely be held a) b) c) d) e)
daily weely bi6weely monthly bi6monthly
010100020021000D When isolating a steam turbine driven centrifugal pump you should first a) b) c) d) e)
open the breaer close the turbine e&haust steam valve close the pump suction valve close the high pressure steam supply valve open the turbine casing drain
010100020021000D ,nsuring the complete isolation of a piece of e%uipment prior to maintenance is the responsibility of a) b) c) d) e)
the !lant 5afety (ommittee the
010100020021000 When isolating an electric motor driven pump you should first a) b) c) d) e)
close the pump suction valve open the motor breaer ensure the pump is drained close the high pressure steam supply valve close the pump discharge valve
010100020021000
169
Wor permits issued to wor on isolated e%uipment re%uire the signature of a) b) c) d) e)
the the the the the
shift foreman isolator and the worer involved !lant Janager
010100020021000 lind flanges used for isolation a) b) c) d) e)
can be prepared as wor progresses must be prepared ahead of time do not need a tag number must be constructed of $3 cm I11 >5 gauge steel are only re%uired when there are no isolation valves
010100020021000A After completing the isolation of e%uipment a) b) c) d) e)
you you you you the
must enter the completed isolations in the log boo can start wor immediately re%uire no further checs must have a co6worer verify your isolation 5afety (ommittee must o prior to wor commencement
010100020021000 n order to protect driven e%uipment from damage a) b) c) d) e)
ensure the discharge valve is closed first the driver must be isolated first the belts must be removed first a loc must be placed on the drain valve first the .energy source. must be isolated after the driver
010100020021000( 7he best possible method of ensuring a boiler is fully isolated is to a) b) c) d) e)
complete a Do :ot
010100020021000A n addition to opening the breaer when isolating electrical e%uipment the isolator should a) b) c) d) e)
remove the fuses tell the maintenance worer of his or her actions isolate the driver as well leave the breaer panel door open to indicate from a distance it is isolated none of the above
170
010100020021000, A .closed drain. is a) b) c) d) e)
a drain line with a single isolating valve a drain which has been blaned off by a blind flange any drain where the effluent is not considered to be harmful to life/ property/ or the environment defined as any drain line left normally in the closed position a drain line having two isolating valves in the line
010100020021000, When isolating a motor for maintenance you should a) b) c) d) e)
open the breaer place a D< :<7
010100020021000( 7he best possible method of completely isolating a steam boiler would be to 1$ 2$ 3$ $ #$ '$ a) b) c) d) e)
1/ 1/ 1/ 2/ 1/
close the boiler water and steam supply valves isolate the air supply close all chemical lines to the boiler place blind flanges in all steam header mains isolate the water treatment deminerali9ed tans isolate all fuel supply e%uipment 3/ 2/ 2/ 3/ 3/
/ 3/ 3/ / /
# ' ' #/ '
(onned Space Entr% 010100020021000, (onfined space means only enclosed or partially enclosed space having a) b) c) d) e)
harmful gases/ vapours/ mist/ or dust no way out limited room for tools and e%uipment elevated air temperatures restricted entry and e&it
010100020021000D
pulp mill
171
b) c) d) e)
grain elevator power plant person;s home brewery
010100020021000( (onfined space entry will apply to areas which lac a) b) c) d) e)
ambient air temperatures proper lighting proper air ventilation a simple means of entry sufficient space for a man to enter
010100020021000A 8e%uirements for entry into confined spaces is governed by the a) b) c) d) e)
010100020021000 (onfined space entry rules apply where the wor in progress may cause a) b) c) d) e)
too much noise to withstand e%uipment being used to become a ha9ard the worer to refuse to perform his ob an accident moisture vapours to be released in the atmosphere
010100020021000, 7he minimum level of o&ygen in a confined space area is a) b) c) d) e)
+R 10R 1#R 1+R 20R
010100020021000, A confined space may easily become a a) b) c) d) e)
difficult place to manoeuvre in breeding ground for bioha9ardous infectious substances noisy entrapment healthy environment life threatening environment
010100020021000D A worer in a confined space that is being ventilated also
172
re%uires a) b) c) d) e)
a self6contained breathing apparatus an approved fire e&tinguisher permission from <=F5 to be there to be in communication with another worer nearby constant monitoring of the o&ygen
010100020021000( A person attending to a worer in a confined space may leave his or her station a) b) c) d) e)
to retrieve tools or e%uipment for the worer only long enough to go to the washroom only when properly relieved by another %ualified person for ten minutes every hour to summon help if the worer becomes unconscious
010100020021000 efore entering any confined space/ it is good practice to a) b) c) d) e)
wear light clothing due to e&treme temperatures in enclosed areas plan the entry using a confined entry space chec list estimate how long you will be there inform the !lant Janager of your whereabouts verify the operator;s isolation points through the !lant 5afety (ommittee
010100020021000A When tests indicate harmful gases are present in a confined space where a worer must enter/ he or she must a) b) c) d) e)
wear approved respiratory protective e%uipment wait until the gases dissipate receive special permission from <=F5 before entering wear a safety belt and lifeline mae sure a worer is stationed outside to assist in case of emergency
+andling and Storage o# 0ases 010100020021000A !ortable gas cylinder capacity a) b) c) d) e)
must tae into account li%uid e&pansion due to temperature change is e&pressed by the tare weight stamped on the cylinder is a function of the pressure within the unit at ambient temperature can be reduced after an inspection may be increased on approval from the D<7 or (7(
010100020021000D
173
7he serial number of a cylinder cannot be duplicated and is registered and maintained by the a) b) c) d) e)
Department of 7ransport (anadian 7ransport (ommission oilers and !ressure Gessels (ommittee ureau of ,&plosives (anadian 5tandards Association
010100020021000D 7he most easily damaged part of the gas container is the a) b) c) d) e)
foot ring valve cap safety valve cylinder valve regulator
010100020021000 Qas cylinder valves are normally constructed of a) b) c) d) e)
cast iron brass stainless steel bron9e the same material as the cylinder
010100020021000A efore disconnecting an empty cylinder from a manifold system a) b) c) d) e)
close the cylinder valve to prevent air entering the cylinder obtain a .buddy. to ensure your safety chec the area for gases with an analy9er unchain the cylinder crac the connecting oint in order to purge it of e&cess gases
010100020021000 Qas cylinders should be stored upright in order to a) b) c) d) e)
minimi9e space re%uirements avoid li%uefied product from escaping eep them from rolling during transportation lessen the chance of bac inury during movement enhance proper identification
010100020021000, n order to prevent the formation of e&plosive mi&tures/ o&ygen and acetylene cylinders should be a) b) c) d)
stored in different buildings stored at least 10 metres apart stored in different confinements within a building ept segregated at all times
174
e)
stored at least ' metres apart
010100020021000, Qas cylinders shall not be placed below ground level e&cept with permission from the a) b) c) d) e)
(anadian 7ransport (ommission Department of 7ransport oilers and !ressure Gessels (ommittee ureau of ,&plosives (anadian 5tandards Association
010100020021000, Qas cylinders are usually stored a) b) c) d) e)
inside/ close to its consuming e%uipment in a well heated room with all fittings lightly oiled or greased below ground level upright and firmly secured
010100020021000D <&ygen and acetylene cylinders should be stored a) b) c) d) e)
in a warm dry place together whenever possible at least 3 metres apart at least ' metres apart inside the building ne&t to the consuming e%uipment
010100020021000D A cylinder valve cap a) b) c) d) e)
will prevent gas from escaping should the cylinder valve lea must be in place when the tare weight is being measured threads must never be lubricated prevents the cylinder valve from damage will prevent the cylinder valve from breaing off should the cylinder fall over
010100020021000D A cylinder foot ring a) b) c) d) e)
is installed on the cylinder to permit .foot rolling. of the cylinder has a diameter 1$# times the cylinder diameter prevents the cylinder from being stored hori9ontally protects the bottom and lower section of the cylinder is removed during transportation
010100020021000( 7op guard rings are used in place of a)
vapour values
175
b) c) d) e)
pressure relief valves cylinder valve caps regulators foot rings
010100020021000 Qas cylinder vapour valves only allow product flow a) b) c) d) e)
if the pressure rises above the ma&imum allowable amount when a hose is connected when the vapour pressure drops in one single direction in e&treme emergency cases
010100020021000A (ylinders deformed by fire are usually a) b) c) d) e)
destroyed cleaned and re6painted before returning for use repaired and returned to service repressuri9ed and returned for use cleaned/ pressure tested/ and then returned to service
010100020021000 7he most fre%uent and common method of cylinder inspection a) b) c) d) e)
does not involve record6eeping is the visual inspection by a %ualified person involves pressuri9ing the cylinder to twice its woring pressure will not result in the cylinder being destroyed or confiscated is the hydrostatic test
010100020021000A A gas cylinder hydrostatic test will a) b) c) d) e)
result in a new test date being stamped on the cylinder mean the cylinder is subected to a pressure of twice its ma&imum allowable woring value mean the cylinder is subected to a pressure of one and one half times its woring pressure remove any dents the cylinder may contain indicate whether or not the unit was e&posed to very high temperatures
010100020021000( Bea tests on cylinder connections should be done with a) b) c) d) e)
a a a a a
sulphur candle halide lamp soap solution litmus solution dye penetrant test
010100020021000A
176
When a gas cylinder is filled with water and pressuri9ed to twice its woring pressure/ the test conducted is nown as a a) b) c) d) e)
hydrostatic test dead weight test tensile test water acet test relief valve test
010100020021000, Qas cylinders that have been filled with li%uid/ immersed in water/ and pressuri9ed to two times the woring pressure are said to have been subected to a a) b) c) d) e)
hydrostatic test dead weight test relief valve test tensile test water acet test
+andling o# +%drocar)on Fluids 010100020021000 uelair mi&tures outside of the flammable range a) b) c) d) e)
can ignite spontaneously cannot burn or e&plode may e&plode but not burn must have a source of ignition to burn will burn only when above the flammable limit
010100020021000A f the fuel amount is below the lower flammable limit/ the mi&ture a) b) c) d) e)
is said to be lean is e&plosive can be called rich must have a source of ignition will not burn rapidly
010100020021000D n order for hydrocarbons to burn/ the a) b) c) d) e)
mi&ture must be lean airfuel mi&ture should be above the upper flammable limit fuelair mi&ture must be rich fuel must be vaporised temperature must be below the boiling temperature
010100020021000( ron and hydrogen sulphide will react to form
177
a) b) c) d) e)
a non6combustible substance a very high ignition temperature substance pyrophoric iron sulphide a very narrow flammable limit range substance hydroferric acid
010100020021000 7he flash point of a li%uid is the temperature at which a) b) c) d) e)
all molecular vibration will cease it will form a gas and burn spontaneous combustion will occur the li%uid will burn the vapours become inert
010100020021000 A flammable limit of a fuelair mi&ture is a) b) c) d) e)
no indication of its combustion properties the percentage by volume of fuel in the mi&ture the percentage by volume of air in the mi&ture the percentage by mass of fuel in the mi&ture the percentage by weight of fuel in the mi&ture
010100020021000, Jethane when combined with air has a flammable limit of between a) b) c) d) e)
$3 0$* 1$1 2$2 #$0
6 #$#R 6 #$0R 6 *$#R 6 @$#R 6 1#$0R
010100020021000, Washing steam should enter a tan car or tan truc slowly so as to a) b) c) d) e)
prevent inury to the worer allow for proper ventilation of the unit prevent massive condensation of the steam within the tan flush the tan gradually reduce the ris of static electricity spar
010100020021000( About @0R of loading6rac tan fires are a result of a) b) c) d) e)
applying flushing steam too rapidly worers smoing improper switch loading procedures not grounding the vehicles loading vehicles not suitable for the product
010100020021000D Boading rac fires are often caused
178
a) b) c) d) e)
by spars from electrical e%uipment from the catalytic effect of fresh metallic surfaces from cigarettes or matches when products with high flash points are loaded after products with low flash points by hot steam lines
010100020021000D When loading containers with B!Q products/ the gauge rod a) b) c) d) e)
releases moisture from the bottom of the tan minimi9es the pressure increase as the product enters monitors the static charge produced by the flow of the product indicates the level of li%uid in the tan provides indication of temperature changes as the tan fills with the B!Q product
010100020021000 Baws governing the storage and transporting of B!Q are enforced by the a) b) c) d) e)
(5A ederal and !rovincial D<7 !rovincial <=F5 ureau of ,&plosives !rovincial Department of Babour
010100020021000D
vapours which are vented to the atmosphere during tan filling li%uids spilled during the filling process li%uid which remains in the tan after being emptied the space above the li%uid after the tan is filled vapours used to .purge. the tan before filling
010100020021000, 7he e&plosion of a flammable mi&ture that occurred at the e&act time a valve was opened was liely due to a) b) c) d) e)
a rich mi&ture being formed the flash point being reached static electricity the auto6ignition temperature the catalytic effect of the fresh metallic surface
010100020021000( =oses used for loading and unloading of B!Q products must be hydrostatically tested a) b) c)
after every use prior to initial sale to the customer annually
179
d) e)
when the first visual sign of deterioration appears every three years
010100020021000A f a fuelair mi&ture is raised above its ignition temperature/ the mi&ture a) b) c) d) e)
may ignite without a source of ignition will re%uire a source of ignition in order to burn will not start burning by auto6ignition will ignite only if static electricity is present will not burn/ only e&plode
010100020021000 ,very effort must be made to prevent o&ygen contacting hydrocarbon vapours because a) b) c) d) e)
an e&plosion will result there are too many sources of ignition auto6ignition will occur the air will dilute the mi&ture hydrocarbon vapours have such high ignition temperatures
010100020021000A 7he ignition temperature of a fuelair mi&ture is the a) b) c) d) e)
lowest temperature at which a mi&ture will burn temperature at which it is said to have a lean mi&ture temperature at which the fuel may gel temperature at which the mi&ture is above the boiling temperature ma&imum temperature of the mi&ture before the fuel turns to vapour
010100020021000( Auto6ignition of a fuelair mi&ture a) b) c) d) e)
cannot occur without a flame re%uires a spar occurs when the temperature of the mi&ture is raised above the ignition temperature occurs when temperatures e&ceed 2@# degrees (elsius most often leads to a catalytic effect
010100020021000A ron sulphide/ if allowed to dry out will a) b) c) d) e)
burst into flames in the pressure of air mae an e&cellent (lass D fire e&tinguishing agent enhance the effects of static electricity emit to&ic fumes absorb moisture from railway tan cars
180
+%drogen Sulphide Sa#et% 010100020021000( =ydrogen sulphide is removed from crude oil by burning it into sulphur dio&ide in the presence of a) b) c) d) e)
an amine an o&ygen free atmosphere a catalyst blac li%uor heavy water
010100020021000A =ydrogen sulphide is a) b) c) d) e)
1$1+@ times heavier than air always found in its pure form found near the top of tans and rooms more difficult to ignite than natural gas not capable of following moving air streams
010100020021000, :atural gas has an ignition temperature of a) b) c) d) e)
2'0 degrees ( #0 degrees ( 1/*00 degrees ( 3'0 degrees ( '#0 degrees (
010100020021000A rom a fire and e&plosion standpoint/ hydrogen sulphide is dangerous because of its a) b) c) d) e)
wide e&plosive range and low ignition temperature wide e&plosive range and high ignition temperature narrow e&plosive range narrow e&plosive range and low ignition temperature high ignition temperature
010100020021000, n the natural gas process/ the li%uid used to absorb hydrogen sulphide is a) b) c) d) e)
water crude oil blac li%uor li%uid sulphur dio&ide amine
010100020021000A =ydrogen sulphide ignites at a) b) c)
2'0 degrees (elsius #0 degrees (elsius 1/*00 degrees (elsius
181
d) e)
3'0 degrees (elsius '#0 degrees (elsius
010100020021000A When burned completely/ 1 g of = 5 gas will produce 2 a) b) c) d) e)
1*/000 C of heat 1/*00 C of heat 1*/000 C of heat 1*0 C of heat 1/*00 C of heat
010100020021000( = 5 burns with a 2 a) b) c) d) e)
red flame bluish 6 yellow flame light blue flame yellow flame brownish 6 yellow flame
010100020021000D =ydrogen sulphide has a .rotten egg odour. and a) b) c) d) e)
can can has can has
always be readily detected by smell readily be seen with the naed eye a narrow e&plosive limit dull one;s sense of smell a high boiling point
010100020021000( 7he degree of hydrogen sulphide concentration which allows a petroleum product to be considered .sweet. must not e&ceed a) b) c) d) e)
1/000 ppm #00 ppm 10 ppm 100/000 ppm 100 ppm
010100020021000D 7he statement that worers with perforated eardrums not be e&cluded from hydrogen sulphide atmospheres was made by the a) b) c) d) e)
!etrochemical Association (,< (5A (anadian :atural Qas Association Cournal of nderwriters Baboratories (anada
010100020021000, 7he allowable e&posure limit of hydrogen sulphide concentration when a person may wor for an eight hour period is
182
a) b) c) d) e)
1/000 *00 #00 20 10
ppm ppm ppm ppm ppm
010100020021000D When woring in an area containing a concentration of 100 ppm = 5 2 a) b) c) d) e)
wor can be performed for a ma&imum of eight hours wor can be performed for a ma&imum of fifteen minutes the worer will be rendered unconscious immediately the sense of smell will be lost within two to fifteen minutes the worer will appear to be into&icated
010100020021000( A concentration of 1# ppm of = 5 can be tolerated for a time 2 not e&ceeding a) b) c) d) e)
# 10 1# 20 2#
minutes minutes minutes minutes minutes
010100020021000D n small amounts/ = 5 acts on the nervous system to 2 a) b) c) d) e)
cause suffocation cause headaches act as a stimulant act as a depressant promote weight loss
010100020021000D 7he safest way to e&tinguish a hydrogen sulphide fire is to a)
remove the <
source 2
b)
remove the catalyst
c)
lower the temperature
d)
stop the gas flow
e)
let it burn itself out
010100020021000 n the event of an uncontrolled release of hydrogen sulphide
183
where a co6worer is .noced down./ your first act should be to a) b) c) d) e)
sound an alarm get out of the area put on your breathing apparatus remove the casualty begin artificial respiration immediately
010100020021000 = 5 detectors mae use of 2 a) b) c) d) e)
a litmus solution a clear lead acetate solution an o&ygen et to burn the hydrogen sulphide a water solubility test a solution of dry iron sulphide
010100020021000 =ydrogen sulphide worers must receive ade%uate training in breathing apparatus/ resuscitation/ and a) b) c) d) e)
fire fighting use of gas detectors personnel rescue plant isolation procedures plant operations
010100020021000 7he (hemical =a9ards 8egulation of the <=F5 Act states that an employer is responsible to ensure each worer1$ 2$ 3$ $ #$
a) b) c) d) e)
wears the proper certified coveralls when woring in an area suspected of containing hydrogen sulphide is instructed in the proper use of protective e%uipment provided is on time to perform his or her duties when handling hydrogen sulphide signs a waiver of responsibility before woring in an area suspected of containing hydrogen sulphide is aware of health ha9ards associated with e&posure to hydrogen sulphide
3/ 2/ 1/ 2/ 1/
# / # 3/ 2/
010100020021000D 7he (hemical =a9ards 8egulation of the <=F5 Act states that an employee is responsible to 1$
follow procedures provided by the employer
184
2$ 3$ $ #$ a) b) c) d) e)
sign a waiver releasing the employer of any responsibility in the event of an accident wear respiratory e%uipment when necessary participate in instruction provided obtain training from an independent company if not supplied by the employer
1/ 1/ 2/ 1/ 3/
2/ / / 3/ /
# # #
010100020021000( 7he ceiling occupational e&posure limit refers to a) b) c) d) e)
the time6weighted average concentration of an airborne substance the allowable concentration e&posure over a fifteen minute period the ma&imum concentration e&posure to an airborne substance the allowable concentration e&posure over an eight hour period the concentration of airborne substances as measured at the highest point in a concentrated area
010100020021000, n addition to compulsory training sessions/ the law re%uires that persons woring with hydrogen sulphide a) b) c) d) e)
must practice with breathing apparatus must be trained in first aid including artificial resuscitation and (!8 must be familiar with maintenance and cleaning of breathing apparatus must be trained in the use of gas detectors must be trained in all of the above
First Aid and (PR #or Adult (asualties 010100020021000D 7he result of inade%uate blood supply reaching portions of the brain is termed a) b) c) d) e)
shoc asphy&ia cardiac arrest stroe angina
010100020021000D A substance which maes the blood clot easier in certain
185
areas is a) b) c) d) e)
cigarette tar haemoglobin carbon mono&ide nicotine (GD
010100020021000A 7he terms .pop. or .drop. refer to a) b) c) d) e)
choing angina attacs broen bone alignment stroe symptoms artificial resuscitation
010100020021000, Angina is a condition which occurs when a) b) c) d) e)
the pathway through which air moves to the lungs is bloced all parts of the body do not obtain an ade%uate supply of o&ygenated blood there is an inade%uate blood supply to the brain the heart stops completely the heart is not getting enough o&ygen
010100020021000A A stroe is a condition which occurs when a) b) c) d) e)
there is an inade%uate supply of blood to the brain the heart is not getting enough o&ygen body parts do not receive enough o&ygenated blood air is restricted to the lungs the heart stops beating completely
010100020021000A When the pulse is checed at the nec of a victim/ it should be done on the side nearest you a) b) c) d) e)
so that it will not appear that you are choing the victim to prevent obstruction of the airway so that you can see the artery pulsing so that you can simultaneously chec for breathing in order to maintain visibility of your fingers
010100020021000( f a casualty is unconscious a) b) c) d) e)
you should not perform any type of first aid notify ,J5 before doing anything consent may be assumed notify them of who you are do not bother to survey the area until after notifying
186
,J5 010100020021000, 7he carotid artery is located a) b) c) d) e)
in the thigh area in the victim;s left side of the chest ust above the armpit in the right temple in the nec
010100020021000( 7he one who starts care for a casualty and may be one of the most important people in the ,mergency Jedical 5ervices 5ystem is the a) b) c) d) e)
paramedic co6worer bystander doctor dispatcher
010100020021000, 7o assess an unconscious casualty;s condition/ the (anadian and American Jedical Associations recommend following the a) b) c) d) e)
pop or drop procedure ,J5 procedure 8(, steps 8,D steps A/ / ( system
010100020021000 When the heart stops beating completely it is termed a) b) c) d) e)
a heart attac cardiac arrest a stroe angina a sei9ure
010100020021000D 4ou notice that one of the men you are woring with is lying on the ground$ f you find that his breathing has stopped you would a) b) c) d) e)
give him something to drin and then send for help send for a doctor phone the shift supervisor start artificial respiration immediately and summon help cover him with a blanet and run for help
010100020021000 When performing abdominal thrusts on a choing victim and the casualty becomes unconscious/ your initial reaction should be to
187
a) b) c) d) e)
increase the rate of abdominal thrusts place the victim on his or her bac and perform a finger sweep of the mouth give two %uic breaths begin (!8 at the rate of 1# compressions to two breaths place the victim on his or her stomach and press into the casualty;s bac
010100020021000A A co6worer is e&periencing shortness of breath/ nausea/ sweating and is strongly denying that heshe is in need of attention$ 7he worer is liely e&periencing a) b) c) d) e)
a heart attac an angina attac shoc cardiac arrest a stroe
010100020021000, 7he artificial respiration rate for an infant is a) b) c) d) e)
1-# 1-10 1-* 1-2 1-3
010100020021000( 7he &iphoid process is a) b) c) d) e)
a method of aligning an area of the chest to be avoided during a method of locating a method for finding
broen bones on which (!8 is performed (!8 bones in the body a pulse
010100020021000( 7he acronym 8(, stands for 8est/ mmobili9e/ (old/ and ,levate$ 7his would be the response used a) b) c) d) e)
for for for for for
a stroe severe bleeding a broen bone a heart attac trauma shoc
010100020021000 7he acronym 8,D stands for 8est/ ,levate/ and Direct pressure$ 7his would be the response used for a) b) c) d)
a stroe severe bleeding a broen bone a heart attac
188
e)
trauma shoc
010100020021000D 5ymptoms of shoc may include the following 1$ 2$ 3$ $ #$ a) b) c) d) e)
s%uee9ing pain clammy sin wea and rapid pulse denial confusion
3/ 1/ 2/ 2/ 1/
/ / 3/ 3/ 2/
# # # #
010100020021000A 7he artificial respiration rate for an adult is a) b) c) d) e)
one one two one one
breath every # seconds breath every 10 seconds breaths every 1# seconds breath every 2 seconds breath every 3 seconds
Fires and E1tinguishing $edia 010100020021000( (ombustion a) b) c) d) e)
is endothermic and can occur in an inert atmosphere is always a visible process in that light is given off is e&othermic/ self sustaining/ and can occur in an inert atmosphere always re%uires a source of ignition re%uires the presence of air
010100020021000A A reducing agent or fuel could be a) b) c) d) e)
carbon mono&ide a heavy metal o&ide hydrogen pero&ide concentrated sulphuric acid chlorine
010100020021000, A process which causes fires to endure and renew themselves is a) b) c)
temperature a reducing agent an o&idi9ing agent
189
d) e)
a flame molecular activity due to high temperature
010100020021000D uels or reducing agents which burn in the flaming mode only are a) b) c) d) e)
flammable li%uids coals flammable gases flammable li%uids and gases coes
010100020021000D Wood can continue to burn in the flameless or glowing mode when o&ygen level is as low as a) b) c) d) e)
1*R 12R +R #R 3R
010100020021000( 4our first reaction to a fire should be to a) b) c) d) e)
fight it contain it turn on the alarm get the nearest fire e&tinguisher phone the maintenance department
010100020021000( A class fire is best e&tinguished by a) b) c) d) e)
lowering the temperature of the burning wood or paper wetting the burning paper or wood smothering the burning li%uid lowering the temperature of the burning li%uid creating a chain reaction between the molecules of the burning material
010100020021000D Water is the best e&tinguisher for a) b) c) d) e)
an oil fire a gas fire an electrical fire a wood fire a metal burning fire
010100020021000, A (lass .A. fire would involve a) b)
gasoline or oil any dry materials
190
c) d) e)
paint or grease electrical e%uipment wood or coal
010100020021000A oam e&tinguishers are recommended for a) b) c) d) e)
(lass (lass (lass (lass (lass
.A. .A. .(. .D. .(.
and (lass and (lass and (lass fires and (lass
.. fires .(. fires .. fires .D. fires
010100020021000D Which of the following constitutes a (lass .(. fire? a) b) c) d) e)
fire fire fire fire fire
in in in in in
a coal buner a fuel tan a lumber pile an electrical panel a pile of paper
010100020021000D 7he maor advantage of carbon dio&ide as a fire e&tinguishing agent for fires in electronic e%uipment is it a) b) c) d) e)
has superior cooling ability over other agents is non6to&ic does not reduce the o&ygen content of the area does not leave a residue provides a barrier between the o&ygen and burning components
010100020021000 7he best portable fire e&tinguisher to use on a (lass .D. fire is the a) b) c) d) e)
carbon dio&ide unit dry powder unit a%ueous film6forming foam unit =alon unit dry chemical unit
010100020021000 Dry chemical fire e&tinguishers should not be used where delicate electrical e%uipment is involved because it is a) b) c) d) e)
conductive an insulator and can be corrosive always corrosive impossible to clean the e%uipment/ it must be replaced capable of producing to&ic fumes
010100020021000 7he best type of fire e&tinguisher to use on an electrical fire would be a
191
a) b) c) d) e)
dry chemical e&tinguisher carbon dio&ide e&tinguisher e&tinguisher dry powder e&tinguisher foam e&tinguisher
010100020021000( Dry chemical fire e&tinguishers may be used to e&tinguish electrical fires/ however/ they are not the best choice because they a) b) c) d) e)
fail to conduct leave a produce are not fires
cool the fire sufficiently electricity residue on the e%uipment to&ic chemicals that may be flammable made in si9es large enough to fight electrical
010100020021000, =alon e&tinguishing agents e&tinguish a fire by a) b) c) d) e)
cooling below ignition temperature radiation shielding isolating the fuel by coating removing the o&ygen supply breaing the uninhibited chain reaction
010100020021000D 7o e&tinguish a fire/ a%ueous film6forming form e&tinguishing agents act in order to1$ 2$ 3$ $ a) b) c) d) e)
2/ 1/ 1/ 1/
seal vapours cool remove the o&ygen brea the chain reaction
3 2 2/ 3 2/ 3/
010100020021000A 7he fire e&tinguisher to be used on electrical e%uipment will be mared with a .(. on a bacground consisting of a a) b) c) d) e)
blue circle green triangle yellow star green circle red s%uare
010100020021000 A red s%uare on a fire e&tinguisher indicates that this e&tinguisher is suitable for a (lass
192
a) b) c) d) e)
A ( D ,
fire fire fire fire fire
010100020021000D urning metals may be e&tinguished using a) b) c) d) e)
dry chemical e&tinguishers carbon dio&ide e&tinguishers A e&tinguishers dry powder e&tinguishers foam e&tinguishers
010100020021000A What type of fire should be put out with water? a) b) c) d) e)
(lass (lass (lass (lass (lass
.A. .. .(. .A./ ../ and .(. .D.
010100020021000 Which of the following e&tinguishers would ordinarily be used to combat a (lass .(. fire? 1$ 2$ 3$ $ a) b) c) d) e)
carbon dio&ide foam dry chemical water
1/ 1/ 2/ 2/ 1/
2 3 3
Porta)le Fire E1tinguishers 010100020021000A oam e&tinguishers are recommended for a) b) c) d) e)
(lass .A. and (lass .. fires (lass .A. and (lass .(. fires (lass .(. and (lass .. fires all classes of fires all but burning li%uids
010100020021000, 7he bacground symbol used on a fire e&tinguisher for a (lass .D. fire is a
193
a) b) c) d) e)
green triangle green circle red s%uare blue circle yellow star
010100020021000D 8ating numerals to indicate the effectiveness of an e&tinguisher are used in reference to a) b) c) d) e)
(lass (lass (lass (lass (lass
A fires fires ( fires A and fires A/ / and ( fires
010100020021000,
=alon e&tinguisher foam e&tinguisher dry chemical e&tinguisher carbon dio&ide e&tinguisher none of the above
010100020021000 A .loaded stream. e&tinguisher is one which a) b) c) d) e)
can be used on (lass fires has an antifree9e agent is always under stored pressure is meant for (lass ( fires produces foam
010100020021000( A maor disadvantage of a floor standing pump e&tinguisher over a bacpac pump unit is a) b) c) d) e)
the floor unit has only half the capacity the bacpac unit has twice the range pumping must stop for relocation the floor unit pump is single acting the floor unit is too difficult to move
010100020021000 !ressure range in a carbon dio&ide e&tinguisher is a) b) c) d) e)
31 to ## !a #$' to '$3 Jpa #/'00 to '/300 Jpa 31 to ## Jpa #' to '3 psi
010100020021000,
194
7he ma&imum storage temperature for a carbon dio&ide e&tinguisher is a) b) c) d) e)
31 2# 0 # ##
degrees degrees degrees degrees degrees
( ( ( ( (
010100020021000A (arbon dio&ide e&tinguishers a) b) c) d) e)
are self6e&pelling are the best for (lass A fires are the %uietest in operation present no ha9ards during use are the most difficult to use
010100020021000 =alon agents are a) b) c) d) e)
safe until they mae contact with the combustion process themselves to&ic the most highly recommended for (lass -( use able to maintain cylinder pressure themselves regardless of temperature gradually replacing dry powder units
010100020021000D An e&tinguisher with a rating is a) b) c) d) e)
good for (lass ( fires only twice as effective as a unit with a 1 rating not to be used on a (lass A fire four times as effective as a unit rated 1 good for four minutes of use
010100020021000 oam type fire e&tinguishers achieve best results by a) b) c) d) e)
lobbing the foam over top of the fire bouncing the foam off the floor ust in front of the burning area discharging the agent with a sweeping motion discharging the agent at the base of the flame splashing the agent into the burning li%uid
010100020021000( All maintenance wor done on portable fire e&tinguishers is re%uired to be a) b) c) d)
completed on all e&tinguishers in the plant at the same time performed at the worsite in case they are re%uired for emergency service contracted out to a certified service company supervised by a :ational ire !rotection Association
195
e)
employee performed on an as6needed basis
010100020021000A =alon agent e&tinguishers are operated and applied in the same manner as a a) b) c) d) e)
carbon dio&ide e&tinguisher water e&tinguisher dry chemical e&tinguisher foam e&tinguisher dry powder e&tinguisher
010100020021000, =alon e&tinguishers are mostly intended for use on a) b) c) d) e)
(lass (lass (lass (lass (lass
A ( A
fires fires fires and fires and ( fires
010100020021000, oam type fire e&tinguishers should only be installed or stored in areas where the temperature remains above a) b) c) d) e)
1# 12 10 * #
degrees degrees degrees degrees degrees
( ( ( ( (
Electrical Fires 010100020021000A
the most common cause of fires in buildings usually the result of inade%uate wiring often due to over6si9ed fuses being installed the result of bloced cooling fin passages illegal in most provinces
010100020021000, ,lectrical circuit insulation a) b) c) d) e)
will never brea down or deteriorate re%uires replacement after 10 years is not affected by temperature will not burn will deteriorate due to high temperatures
010100020021000 ,lectrical connections
196
a) b) c) d) e)
need only mae contact/ they need not be tight will create large amounts of heat if not tight can cause an arc if too tight may operate on overload for specified durations will not generate heat at any time
010100020021000A >nder the (anadian ,lectrical (ode/ if an area contains ha9ardous concentrations of flammable gases or vapours under normal conditions/ electrical e%uipment must be designated safe for use in an area classification of a) b) c) d) e)
(lass (lass (lass (lass (lass
1/ 1/ 2/ 2/ 3/
division division division division division
1 2 1 2 1
010100020021000( >nder the (anadian ,lectrical (ode/ if an area contains dust in the air/ under normal operating conditions/ in concentrations high enough to produce e&plosive or ignitable mi&tures/ the electrical e%uipment must be designed safe for use in an area classification of a) b) c) d) e)
(lass (lass (lass (lass (lass
/ division / division / division / division / division
010100020021000, According to the (anadian ,lectrical (ode an area where easily ignited material fibres capable of producing combustible flyings are handled or manufactured would be classified as a a) b) c) d) e)
(lass (lass (lass (lass (lass
1/ 1/ 2/ 2/ 3/
division division division division division
1 2 1 2 1
010100020021000A An e&le of a class .(. fire would be a) b) c) d) e)
a a a a a
fire in an electrical panel fire in a trash bin fire in a fuel tan precious metals fire fire in a coal storage pile
010100020021000 When an electrical fire is discovered
197
a) b) c) d) e)
the e%uipment may be left running if the fire is put out with a ( type fire e&tinguisher the e%uipment should be de6energi9ed as %uicly as possible the e%uipment should be left running until a bacup power supply is available the e%uipment may be immediately restarted once the fire is e&tinguished fresh air should be provided to the room as %uicly as possible to get rid of to&ic fumes
010100020021000, 7he best type of fire e&tinguisher to use on a live electrical fire is a a) b) c) d) e)
pressuri9ed water e&tinguisher dry chemical e&tinguisher purple e&tinguisher A e&tinguisher carbon dio&ide e&tinguisher
010100020021000, 7he temperature of the carbon dio&ide leaving the e&tinguisher horn can be as low as a) b) c) d) e)
0 degrees ( 6# degrees ( 630 degrees ( 6'0 degrees ( 6+0 degrees (
010100020021000A =alon from halon fire e&tinguishers a) b) c) d) e)
produces a distinct odour which warns of the presence of halon is abrasive to electrical e%uipment will act as a conductor if moisture is present is derived from bromine/ fluorine/ or chlorine is corrosive
010100020021000 4ou discover that a small fire has been started in a high tension switch bo&$ n your immediate area there are four different types of fire e&tinguishers$ 7he one you put the fire out with should be the a) b) c) d) e)
soda 6 acid e&tinguisher dry chemical e&tinguisher chemical foam e&tinguisher cold water e&tinguisher one closest to you
010100020021000( During annual turnaround of a facility it is highly
198
recommended that a) b) c) d) e)
all fuses in the electrical system be replaced aluminum wiring be replaced all electrical connections be checed for tightness and corrosion all circuit breaers be disassembled and cleaned a megger be used on all electric motor windings
010100020021000( 7emporary electrical hoo6ups should a) b) c) d) e)
be in place for a ma&imum duration of *2 hours only be made with U electrical cable be designed to the original specifications comply with the A5J, codes have (5A pre6approval
010100020021000D A common cause of an electrical fire is a) b) c) d) e)
allowing motors or conductors to get wet if not designed for that purpose prematurely replacing deteriorated wiring following too closely to the ,lectrical (ode when installing electrical e%uipment replacing burned fuses with ones of the same rating waiting a specified amount of time between attempts to start large motors
En/ironmental Introduction 010100020021000D 7he earth;s water cycle is referred to as a) b) c) d) e)
a hydrostatic cycle a meteorological cycle a hydrographic cycle a hydrological cycle an elementary cycle
010100020021000( Air is predominantly composed of a)
< / (< / and (= 2 2
b)
< / : / and (< 2 2 2
c)
<
and : 2
d)
2
< / (< / and =
199
2 e)
<
2
2
and (< 2
2
010100020021000A 7he environment consists of a) b) c) d) e)
natural and man6made elements organic and natural elements soil and water plant and animal life air and water cycles
010100020021000, A typical soil profile includes/ from top to bottom a) b) c) d) e)
a 9one of material/ a 9one of a 9one of a 9one of material/ a 9one of weathered a 9one of weathered
parent material/ a 9one of intensely weathered a 9one of unweathered material parent material/ a 9one of weathered material/ bed roc weathered material/ a 9one of unweathered a 9one of bedroc weathered material/ a 9one of partially material/ a 9one of bedroc weathered material/ a 9one of partially material/ a 9one of parent material
010100020021000D 5ubsurface water can be divided from top to bottom as a) b) c) d) e)
a 9one of aeration/ ground water/ water table water table/ ground water/ surface water surface water/ ground water/ water table a 9one of aeration/ water table/ a 9one of saturation surface water/ ground water/ underground water
010100020021000 Qround water and surface water originate from a) b) c) d) e)
aeration precipitation vegetation evaporation filtration
010100020021000A !laces where groundwater leaves the system to become surface water are called a) b) c) d) e)
discharge points runoff areas recharge points springs saturated 9ones
200
010100020021000( 7he land area where water shares the spaces between soil particles with the air is nown as the a) b) c) d) e)
infiltration 9one water table 9one 9one of aeration 9one of discharge saturated 9one
010100020021000D
wind water glaciers vegetation gravity
010100020021000, 7he process whereby plants consume carbon dio&ide/ water and the sum energy to mae food is nown as the a) b) c) d) e)
hydrological cycle meteorological cycle photoelectric cycle hydrostatic cycle photosynthetic cycle
010100020021000D
producers/ inactive matter/ and consumers organic matter/ inorganic matter/ and decomposers consumers/ producers/ and inorganic matter decomposers/ consumers/ and producers nutrients/ consumers/ and decomposers
010100020021000, !arent material for soil formation a) b) c) d) e)
is only mineral material deposited by glaciers/ wind/ and water is only organic material is the same throughout the world is not necessary has been mostly deposited by glaciers in :orth America
010100020021000( 7he three maor components in an ecosystem are a) b) c) d)
animals/ plants/ and air animals/ plants/ and decomposers producers/ consumers/ and inactive organic matter producers/ consumers/ and air
201
e)
producers/ consumers/ and sun;s energy
010100020021000A ,nergy in a food web a) b) c) d) e)
originates from the sun travels from the top of the web to the bottom does not leave the web is passed through the food web by heat radiation is self6sustaining within the food web
010100020021000 (omponents of an ecosystem are a) b) c) d) e)
independent of each other interconnected and interdependent vertically ordered unchangeable raned from top to bottom
010100020021000 (ontributions to the ecosystem by the environment are in the form of a)
: / (< / = < 2 2 2
b)
(< / =
c)
Ar/ =
d)
=
e)
(< / < 2 2
010100020021000D n the ecosystem/ green plants are considered to be a) b) c) d) e)
consumers inactive matter decomposers producers inorganic matter
010100020021000( =erbivores andor carnivores as they are seen in the ecosystem are considered a) b) c) d)
inactive matter decomposers consumers producers
202
e)
inorganic matter
0aseous and 2oise Pollutants 010100020021000 5ulphur o&ides in flue gas are undesirable because a) b) c) d) e)
they use up the sulphur in the fuel they cause acid rain they reduce combustion efficiency they combine with sunlight to produce smog they are an indicator of incomplete combustion in the furnace
010100020021000A (arbon mono&ide is produced as a result of a) b) c) d) e)
a shortage of o&ygen in the furnace too high a combustion temperature too large a furnace e&cess air in the combustion process slow movement of fuel through the furnace
010100020021000D Qaseous pollutants emitted from power plants are1$ 2$ 3$ $ #$ a) b) c) d) e)
natural gas o&ygen carbon mono&ide sulphur dio&ide nitrogen 1/ 2/ 3/ 3/ 1/
3/ 3/ / 2/
# #
010100020021000( Jost systems used today to remove sulphur dio&ide a) b) c) d) e)
produce a useful end product remove most of the sulphur trio&ide as well involve the use of lime/ limestone or sulphuric acid remove the sulphur dio&ide in the furnace are simple systems involving little e&tra e%uipment
010100020021000D :itrogen o&ides in flue gas may be reduced by a) b) c) d)
raising the furnace temperature decreasing the si9e of the furnace scrubbing the flue gas with lime reducing the percentage of e&cess air
203
e)
employing a dilute sulphuric acid scrubber system
010100020021000A (onverting carbon mono&ide to carbon dio&ide in the furnace may be accomplished by 1$ 2$ 3$ $ #$ a) b) c) d) e)
increasing the amount of combustion air decreasing the time the fuel spends in the furnace burning lime with the fuel not overloading the boiler ensuring a good fuelair mi&ture
1/ 2/ 3/ 1/ 2/
/ 3/ / 2/ /
# # #
010100020021000( 5ystems designed to reduce 5< are also effective in reducing 2 the concentration of a)
:< &
b)
= < 2
c)
5< 3
d)
(<
e)
(< 2
010100020021000 A method proven to reduce emissions of sulphur o&ides in the flue gas is to a) b) c) d) e)
lower the furnace temperature scrub the flue gas with wet lime or limestone reduce the amount of e&cess air use dilute sulphuric acid to scrub the flue gas increase the si9e of the furnace
010100020021000D A sampling and analy9ing train a) b) c) d) e)
measures the fre%uency composition of noise monitors flue gas for one type of emission cannot be operated automatically measures the amount of several types of emissions cannot be used to obtain permanent records
204
010100020021000 A device for measuring flue gas emissions is called a) b) c) d) e)
a stac monitor an
010100020021000, (hoose all of the following statements which are true1) 5ound travels through variations in air pressure 2) 5ound waves are reflected/ deflected /and absorbed 3) 5ound is a form of energy ) 5ound travels through a vacuum #) 5ound always travels at a constant wavelength a) b) c) d) e)
1/ 1/ 2/ 2/ 1/
3/ 2/ 3/ 3/ 2/
and # 3/ and / and # and and 3
010100020021000( 5ound pressure level is e&pressed in a) b) c) d) e)
psi "pounds per s%uare inch) !a decibels watts amps
010100020021000A :oise sources over what level are potentially ha9ardous to hearing? a) b) c) d) e)
100 d and above '0 d and above 120 d and above +0 d and above 0 d and above
010100020021000, Decibels are represented by a) b) c) d) e)
an e&ponential scale an intensity scale an arithmetic scale a reference scale a logarithmic scale
010100020021000 :oise pollution is caused by1$
high speed e%uipment
205
2$ 3$ $ #$ a) b) c) d) e)
popping high pressure safety valves chimneys ac hammers riveting operations
1/ 1/ 2/ 1/ 3/
2/ 2/ 3/ 3/ /
3 / # / # / # #
010100020021000, Damaging sound pressure levels affecting plant personnel could not be reduced by a) b) c) d) e)
enclosing the noise source modifying the e%uipment operating conditions building a barrier wearing protective e%uipment changing the fre%uency of the sound
010100020021000, Boud noises may be controlled by1$ 2$ 3$ $ #$ a) b) c) d) e)
building soundproof cabinets around e%uipment running the e%uipment at high speeds using silencers on the air intaes to gas turbines using mufflers on e%uipment e&haust running noisy e%uipment at night when everyone is asleep
1/ 1/ 1/ 1/ 1/
2/ 2/ 3/ 2/ 3/
3/ / # 3/ / #
010100020021000D :oise monitors "sound meters) measure the decibel rating and contain a) b) c) d) e)
sound dampers sound amplifiers acoustic eliminators weighting networs acoustic amplifiers
010100020021000D !ersonal protective devices designed to protect power plant operators from environmental pollutants/ include the following e%uipment1$ 2$ 3$ $ #$ '$
hard hats ear muffs soft toed shoes or boots safety boots dust mass breathing air pacs
206
a) b) c) d) e)
1/ 1/ 1/ 2/ 3/
2/ 2/ 2/ #/ /
/ #/ 3/ / #/ ' #/ ' ' '
Solid and !iquid Pollutants 010100020021000D Jechanical centrifugal collectors remove particulate by means of a) b) c) d) e)
centrifugal force inertia gravitational force all of the above none of the above
010100020021000( Jechanical centrifugal collectors are not suitable for the collection of a) b) c) d) e)
very coarse particles coarse particles fine particles rough particles heavy particles
010100020021000 Wet scrubbers remove a) b) c) d) e)
gases only gases and dust only particulates only acidic gases only dust only
010100020021000A n an electrostatic precipitator the a) b) c) d) e)
discharge collector discharge particles discharge charged
electrode is negatively charged electrode is negatively charged electrode is positively charged are positively charged electrode and the particles are positively
010100020021000 7he voltage supplied to an electrostatic precipitator is between a) b)
10/000 volts A( and 1/000/000 volts A( 10/000 volts D( and 100/000 volts D(
207
c) d) e)
1/000/000 volts A( and 1/000/000/000 volts A( 100/000 D( and 1/000/000/000 volts A( 100/000 A( and 10/000 volts D(
010100020021000( When ground level sulphur dio&ide concentrations are increasing above allowable limits/ the operators choice of action to reduce the sulphur dio&ide emissions includes1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 2/ 1/ 1/ 3/
reduce boiler load increase the voltage level on the electrostatic precipitators to remove more sulphur dio&ide increase the boiler load to disperse the sulphur dio&ide over a wider area switch to a low sulphur fuel shut down the boilers 3/ 3/ / /
# # #
010100020021000A 5ome areas of a power plant are difficult or not economically suitable to provide a pollution free area in which employees can wor in$ 7hese types of areas are1$ 2$ 3$ $ #$ '$ a) b) c) d) e)
2/ 1/ 2/ 1/ 3/
control rooms coal conveyor galleries cleaning ash hoppers or precipitators internally during a boiler repair lunch rooms coal crushing and grinding e%uipment steam turbine bays 3/ 2/ 3/ 3/ /
#/ ' 3/ # / # ' '
010100020021000, ly ash is removed from bag filters by a system of a) b) c) d) e)
rollers hammers electrostatic precipitators shaers rappers
010100020021000, ly ash is normally less than a)
1 mm in diameter
208
b) c) d) e)
0$3 mm in diameter 1/000 microns in diameter 300 microns in diameter 30 microns in diameter
010100020021000D ly ash collected by pollution control devices can be used in the a) b) c) d) e)
petroleum industry electrical industry tire industry construction industry landscaping industry
010100020021000 5olid pollutants such as flyash are produced when burning1$ 2$ 3$ $ a) b) c) d) e)
natural gas heavy fuel oil wood coal
1/ 2/ 1/ 3/ 1/
3/ 2/ 3 2/ 3/
010100020021000, 5olid pollutants emitted from power plants are1$ 2$ 3$ $ #$ '$ a) b) c) d) e)
dust soot flyash carbon mono&ide sulphur dio&ide sulphuric acid
all of the above 2/ 3/ ' 1/ 2/ 3/ ' 2/ / # 1/ 2/ 3
010100020021000( Bi%uid pollutants emitted from power plants include1$ 2$ 3$ $ a) b) c)
water waste waste waste
1/ 1/ 3/ 1/ 2/ 3/
at elevated temperatures water from flue gas scrubbing water from water treatment processes water from ash handling operations
209
d) e)
2/ 3/ 2/
010100020021000A .7he amount of any gas that water can dissolve depends on the partial pressure the gas e&erts on the free surface of the water./ is stated by a) b) c) d) e)
=enry;s Baw oyles;s Baw (harles; Baw Dalton;s Baw 7he Qeneral Qas Baw
010100020021000( :atural draft cooling towers are divided into a) b) c) d) e)
dry and wet types closed and semi6closed types open and closed types filled and unfilled types open and filled types
010100020021000 7he most common type of mechanical draft cooling tower is a) b) c) d) e)
a forced draft type an induced draft type a wet type a dry type a combination wet and dry type
010100020021000D Air flow in a natural draft cooling tower is dependent upon the a) b) c) d) e)
speed of the cooling fan volume of water flowing through partial pressure e&erted above the surface of the reservoir differences in densities of the air leaving and entering wind direction
010100020021000( Advantages of D cooling towers over ( cooling towers include1$ 2$ 3$ $ #$ a) b) c)
accessibility of the fan for maintenance little chance of icing up in winter minimum noise a greater ability to cool the water ability to recycle the vapour laden air
1/ 3/ # 3/ / # 2/ 3/
210
d) e)
1/ 2/ 3 2/ 3/ #
010100020021000 (ooling towers a) b) c) d) e)
need only be operated in the summer months may contribute to the pollution problem remove heat from the condensate re%uire fans do not re%uire any maintenance
010100020021000, Dry cooling towers a) b) c) d) e)
operate by natural draft have the cooling water flow from bottom to top have an D fan located at the top have an D fan located at the bottom pass the cooling water through a closed circuit of finned tubes
Potential En/ironmental Impacts o# !iquids 010100020021000 =a9ardous material is not a problem unless a) b) c) d) e)
a loss of product is e&perienced a loss of control is e&perienced it is noticed by operating personnel it is present in the environment it is present in the ecosystem
010100020021000( A common test to determine pollution in water is the "
body o&ygen demand biological o&ygen demand biochemical o&ygen demand biographic o&ygen demand biodegradable o&ygen demand
010100020021000 7he two main growth nutrients carried by domestic sewage are a) b) c) d) e)
sulphates and nitrates nitrates and phosphates phosphates and sulphates sulphates and suspended solids sludge and dissolved solids
010100020021000
211
7he ability of water to dissolve o&ygen a) b) c) d) e)
increases with the increase in water temperature decreases with the increase of water temperature decreases with the decrease of water temperature does not change with temperature none of the above
010100020021000D 7hermally separated layers in laes are called a) b) c) d) e)
anticlines inclines temperature gradients thermoclines temperature layers
010100020021000A An effluent is a) b) c) d) e)
a substance that flows out of a process always pollutant smog the result of weather inversion caused by over production of flue gases
010100020021000 !hosphates are a common chemical found in a) b) c) d) e)
groundwater detergents plant effluent settling ponds sludge
010100020021000D
D<7;s !G(;s
010100020021000, 7he p= of industrial effluent can be controlled a) b) c) d) e)
by by by by by
the the the the the
addition of acid addition of alaline addition of water use of settling ponds addition of acid or alaline as re%uired
010100020021000D (oagulants are substances used to
212
a) b) c) d) e)
control the p= of effluent water remove dissolved solids from water remove grease from water remove small particles from water remove phosphate and nitrates from water
010100020021000, (hemical emulsions can be removed by a) b) c) d) e)
settling additives centrifugal action gravity all of the above
010100020021000D 7he best way to dispose of ha9ardous li%uids is to a) b) c) d) e)
put them in a landfill encase them and bury them underground encase them and bury them at sea incinerate them at high temperature inect them down deep wells
010100020021000( 7he rate at which a fluid progresses from a spilled area is governed by its a) b) c) d) e)
p= density viscosity thicness weight
010100020021000( =a9ardous li%uids should be handled according to information supplied on a) b) c) d) e)
general safety reports progress reports Jaterial 5afety Data 5heets plant operation manuals
010100020021000, Water that e&ists in the soil and roc formation is nown as a) b) c) d) e)
tap water contaminated water surface water soil water ground water
213
Potential En/ironmental Impacts o# "apours 010100020021000, 7he gaseous pollutant that contributes to acid rain is a) b) c) d) e)
o9one carbon dio&ide carbon mono&ide mercaptan sulphur dio&ide
010100020021000D :itrogen o&ides are referred collectively as a)
:<;s
b)
:< 2
c)
: < 2
d)
:< U
e)
: < 2 #
010100020021000A 7he upper level gas that shields the earth from ultraviolet radiation is a) b) c) d) e)
o9one methane carbon dio&ide chlorofluorocarbons nitrogen
010100020021000A 7he gaseous pollutant that contributes to o9one depletion in the stratosphere is a) b) c) d) e)
nitrous o&ide sulphur o&ide carbon dio&ide carbon mono&ide methane
010100020021000D A gaseous pollutant that contributes to acid rain is a) b) c) d) e)
mercaptan carbon dio&ide methane nitrous o&ides o9one
214
010100020021000( 7he main components of acid rain are a) b) c) d) e)
carbonic acid and sulphuric acid nitric acid and carbonic acid nitric acid and sulphuric acid sulphuric acid and acetic acid sulphuric acid and carbonic acid
010100020021000( 7he greatest effect of acid rain is on a) b) c) d) e)
leaves plant stems roots plant reproductive systems tree bar
010100020021000, ncomplete combustion of fuel is responsible for the production of a) b) c) d) e)
water vapour carbon dio&ide hydrogen sulphide sulphur dio&ide carbon mono&ide
010100020021000, n order for acid rain to be formed a) b) c) d) e)
atmospheric temperatures must be correct water vapour must be present sunlight must be present water vapour and cool temperatures must apply water vapour and sunlight must be present
010100020021000 Jethane gas is sometimes produced by a) b) c) d) e)
insufficient combustion air decomposition of organic matter in a swamp the burning of plastics high intensity sunlight acting on o9one discharging =alon fire e&tinguishers
010100020021000A Qreenhouse gases allow a) b) c) d) e)
high energy waves to pass low energy waves to pass long energy waves to pass short energy waves to pass allow all energy levels to pass
010100020021000D
215
(arbon dio&ide is responsible for a) b) c) d) e)
20R 30R 0R #0R '0R
of of of of of
greenhouse greenhouse greenhouse greenhouse greenhouse
gases gases gases gases gases
010100020021000, <9one is harmful at a) b) c) d) e)
stratospheric levels in the atmosphere substratospheric levels in the atmosphere upper levels in the atmosphere all levels in the atmosphere lower levels in the atmosphere
010100020021000 (hlorofluorocarbons a) b) c) d) e)
contribute to the acid rain problem destroy o9one after they reach the stratosphere combine with o9one to produce to&ins are the main heat trapping gases responsible for the greenhouse effect brea down and become harmless as they rise in the atmosphere
010100020021000( 7he greenhouse effect is responsible for a) b) c) d) e)
heart and circulatory system strain the diminishing maple sugar industry drought conditions fouling on fish gills the death of microscopic life in laes
010100020021000 7he most common method of removing sulphur dio&ide from flue gases involves the use of a) b) c) d) e)
caustic soda limestone an alali wash sodium carbonate a dilute sulphuric acid wash
010100020021000( 7he conversion of nitrogen to nitrogen o&ides occurs at temperatures above a) b) c) d) e)
1/2#0 1/#0 1/'#0 1/+#0 2/2#0
degrees degrees degrees degrees degrees
( ( ( ( (
216
010100020021000A 7o reduce nitrogen o&ides in the flue gas/ the dual register burner a) b) c) d) e)
reduces turbulence to delay combustion hence reducing temperatures completes combustion in the burner tube before the furnace area supplies cooling air to reduce furnace temperature increases turbulence for most efficient combustion uses ma&imum e&cess air for combustion at high temperatures
010100020021000D =ydrogen as an alternative fuel is considered ideal because a) b) c) d) e)
it burns at low temperatures therefore minimi9ing nitrogen o&ide formation it has nearly the same heating value as carbon it is safe and easy to store water vapour is the only product of combustion the cost of production is minimal
010100020021000( 8egenerable systems used for flue gas desulphuri9ation a) b) c) d) e)
are less e&pensive than non6regenerable methods use lime or limestone in scrubbing the flue gas produce a maretable by6product are better developed and more widely applied than non6regenerable systems produce no maretable by6product
Potential En/ironmental Impact o# Operating Facilities 010100020021000, Which of the following/ created by operating facilities may have an adverse affect on the environmenta) b) c) d) e)
noise generation incomplete combustion planned vapour release solid non6to&ic wastes all of the above
010100020021000A A valuable tool in recognition of an environmental problem is the use of a) b) c) d) e)
W=J5 7DQ systems operating systems reporting systems incident systems
217
010100020021000D :ew facilities such as compressor stations re%uire a) b) c) d) e)
a soil impact study an air %uality impact study a gas conservation study a noise impact statement a wildlife impact statement
010100020021000D 7he first action of plant personnel upon finding unplanned environmental e&cursion is a) b) c) d) e)
to report the incident to <=F5 to report the incident to !rovincial ,nvironmental Authorities to report the incident to ,$8$($$ minimi9e and control the release alert the rest of the plant personnel
010100020021000 Who provides the most effective means of problem recognition in the plant? a) b) c) d) e)
010100020021000, As a plant ages/ changes in operating conditions that affect the environment are the responsibility of a) b) c) d) e)
the ,8( the company operating the plant <=F5 the ,nvironmental 8eview oard plant operating personnel
010100020021000D 7he three types of actions that can result when a problem area is identified are a) b) c) d) e)
immediate/ medium range/ and long term actions permanent/ intermediate/ and long term actions permanent/ interim/ and adoptive actions permanent/ interim/ and adaptive actions short term/ adaptive/ and long term actions
010100020021000 7he ability of operating personnel to deal with abnormal environmental conditions in a timely and efficient manner is facilitated by
218
a) b) c) d) e)
incident plans emergency plans adaptive action plans permanent action plans continuous action plans
010100020021000, 7o lessen environmental incident/ operating personnel should now a) b) c) d) e)
the material they are dealing with the isolation points in the process what is re%uired to contain a release the problems that an upset in a process may cause to the environment all of the above
010100020021000( 7he acceptable design sound level heard at the nearest permanently or seasonally occupied dwelling would be stated in the a) b) c) d) e)
soil impact study wildlife impact statement noise impact statement air %uality impact study gas conservation study
010100020021000A .!ermanent action. a) b) c) d) e)
deals with and eliminates the root problem allows you to live with the problem indefinitely is unattainable re%uires a plan to address the problem at the earliest opportunity suggests a time frame for follow up
010100020021000A 7he most proficient method of dealing with environmental impacts due to wastes is to a) b) c) d) e)
avoid the generation of ha9ardous waste ensure it conforms with the 7DQ Act "Alberta) ensure that disposal of material waste confirms with re%uired legislation conduct periodic inspections of the company used to dispose of ha9ardous waste use long term storage
010100020021000 When decommissioning and abandoning a processing site a) b)
a site restoration proposal must be done an environmental impact study and a remedial plan must be made
219
c) d) e)
an ,8( approved plan must be implemented an <=F5 study must be done a company liability study must be done
010100020021000( 5oil contaminated by a ha9ardous material should be a) b) c) d) e)
flushed with plenty of water neutrali9ed by an acidic or basic solution removed/ placed in sealed containers and disposed of contained within the defined boundary heated to above #00 degrees ( to drive off the contaminants
Engineering $aterials 010100020021000, 8esistance to indentation refers to a metals property which is a) b) c) d) e)
brittleness elasticity malleability toughness hardness
010100020021000D Jalleability of a metal a) b) c) d) e)
will usually decrease as the temperature rises is checed using the (harpy tester means it will crac when struc with a hammer usually increases with the addition of heat means the same as .toughness.
010100020021000( A material that can be drawn out or e&tended in length without breaage is said to be a) b) c) d) e)
hard brittle ductile chilled malleable
010100020021000D Jaterials which will brea rather than bend when subected to an outside force are said to be a) b) c) d) e)
tough malleable hard brittle stiff
220
010100020021000( n the process of forming iron/ limestone is added to a) b) c) d) e)
pig iron moulds the iron ore in the moulds the molten iron ore in order to form slag mae the resulting pig iron more malleable increase the pig iron elasticity
010100020021000, 7he result of removing nearly all the impurities and carbon from pig iron is a) b) c) d) e)
white cast iron steel low carbon steel coe wrought iron
010100020021000( Jedium carbon steel becomes difficult to weld when the carbon content e&ceeds a) b) c) d) e)
10R 3$#R 0$3#R 0$2#R 0$1R
010100020021000, !ig iron a) b) c) d) e)
is the raw material from which brass is made has a high percentage of graphite contains at least 2R carbon has most of its carbon in a combined state is the raw material from which cast iron is made
010100020021000D An element which reduces creep in metal is a) b) c) d) e)
nicel copper vanadium molybdenum manganese
010100020021000D n order to avoid residual stresses after welding/ alloy steels a) b) c) d)
cannot contain any carbon must contain copper are not affected by carbon content should be heated before/ during/ and after welding
221
e)
must be heated after welding
010100020021000D When nicel is added to alloy steel/ it a) b) c) d) e)
produces increased hardness produces improved machineability causes brittleness produces improved corrosion resistance produces improved elasticity
010100020021000( When chromium is added to alloy steel it produces a) b) c) d) e)
increased toughness increased ductility increased hardness improved machineability improved malleability
010100020021000, :icel when added to steel a) b) c) d) e)
improves hardness and brittleness decreases toughness and corrosion resistance improves malleability decreases hardness and brittleness improves toughness and corrosion resistance
010100020021000 An alloy of copper/ tin/ and sometimes 9inc is a) b) c) d) e)
brass bron9e white metal babbit low carbon steel
010100020021000, (opper alloys a) b) c) d) e)
are are are are are
harder to machine than copper not as strong as copper itself less resistant to corrosion than copper much lower in carbon content than copper easier to machine than copper itself
010100020021000 Aluminum is produced from a) b) c) d) e)
copper and 9inc bau&ite non6ferrous ore aluminum ore babbit
222
010100020021000( Aluminum alloys are used in the construction of a) b) c) d) e)
condenser tubes motor casings internal combustion engine parts bearing shells valves and piping
010100020021000A ismuth/ silver and antimony are sometimes found in a) b) c) d) e)
bearing metals bron9e copper brass chrome products
010100020021000D 8elative to bearing metal or babbit/ the greater the amount of lead it contains a) b) c) d) e)
the greater will be the amount of tin the load it will be able to support will be less the faster the e%uipment will be able to operate the greater will be the load it will be able to support the less chance it will have of being alloyed with antimony
010100020021000D rass is an alloy of a) b) c) d) e)
copper and bron9e copper and lead brass and lead copper and 9inc copper and tin
010100020021000D earing metal 1$ 2$ 3$ $ a) b) c) d) e)
1/ 2/ 1/ 1/ 3/
is sometimes called babbit metal is sometimes called white metal can be heated to any temperature can be made for different types of service 2/ 3/ 3/ 2/
3
010100020021000D abbit is composed of
223
a) b) c) d) e)
*#R +@R 10R +@R *#R
tinK 1#R leadK 10R copper leadK *$#R tinK 3$#R copper tinK 1#R antimonyK *#R lead tinK *$#R leadK 3$#R copper leadK 1#R tinK 10R antimony
&elding $ethods 010100020021000A When .plastic state. and .pressure. are terms used to describe a type of weld/ it is a) b) c) d) e)
forge welding o&y6acetylene welding resistance welding submerged arc welding electric arc welding
010100020021000, 7he oldest form of welding is a) b) c) d) e)
resistance welding spot welding electric arc welding plasma arc welding forge welding
010100020021000D When a filler rod and very hot flame are used in a welding process/ the weld method is a) b) c) d) e)
submerged arc welding heli6arc method electric arc method o&y6acetylene method spot6weld method
010100020021000( :on6alloy low carbon steel filler rods are most often used in a) b) c) d) e)
submerged arc welding heli6arc welding o&y6acetylene welding electric arc welding forge welding
010100020021000, (ast iron and malleable iron are commonly repaired using a) b) c) d) e)
o&y6acetylene welding submerged arc welding electric arc welding soldering bra9ing
224
010100020021000 A .tinning temperature. is used in a) b) c) d) e)
soldering bra9ing forging electric arc welding metal cutting
010100020021000, When bra9e welding/ the filler rod is usually a) b) c) d) e)
alloy steel brass antimony aluminum bron9e
010100020021000 When acetylene is stored in a cylinder it is absorbed in a) b) c) d) e)
water acetone chromate phosphate acetate
010100020021000A Acetylene should not be used at pressures above a) b) c) d) e)
103 120 #0 2# 10
!a !a !a !a !a
010100020021000A 5oft soldering is a form of bra9e welding where soldering temperatures are in the range of a) 1#0 6 2'0 degrees (elsius b) #00 6 1/000 degrees (elsius c) 1/000 6 1/200 degrees (elsius d) 1/200 6 1/#00 degrees (elsius e) *00 6 @00 degrees (elsius 010100020021000( 5older connections are usually used on a) b) c) d) e)
steel lines stainless steel lines copper lines aluminum lines cast iron lines
225
010100020021000D Acetylene hose connections have a) b) c) d) e)
right hand threads no threads slip6on connections left hand threads %uic couplers
010100020021000A Which of the following is the colour for an acetylene hose? a) b) c) d) e)
red green blac white yellow
010100020021000 7he following grades of !ressure Welders (ertificate of (ompetency are established under the oilers Acta) b) c) d) e)
.A. and .. .A./ ../ and .(. .A. .. .A(. and .D(.
010100020021000D When brought into an o&ygen rich atmosphere/ steel will burn at a) b) c) d) e)
3#+ degrees ( #0* degrees ( '*0 degrees ( +*0 degrees ( 1/213 degrees (
010100020021000, When flame cutting/ metal temperature must be brought above a) b) c) d) e)
1/000 @00 @+0 1/100 +*0
degrees degrees degrees degrees degrees
(elsius (elsius (elsius (elsius (elsius
010100020021000 When flame cutting/ a blast of pure o&ygen is directed into the heated metal to a) b) c) d)
blow molten metal out burn away a portion of the metal cool the metal produce slag
226
e)
remove slag
010100020021000D A standard flame cutting torch has holes in the tip$ a) b) c) d) e)
four three five seven si&
010100020021000 A rectifier used in arc welding a) b) c) d) e)
will produce temperatures in the range of *00 to +30 degrees will change A( to D( is used for weld inspection will rectify slag inclusion problems produces an arc in the temperature range of +/300 to 13/000 degrees (
010100020021000, ,lectric arc temperatures may be as high as a) b) c) d) e)
3/000 /2#0 #/32# */#0 +/300
degrees degrees degrees degrees degrees
( ( ( ( (
010100020021000, 7he current supply for electric arc welding may be aan1$ 2$ 3$ $ a) b) c) d) e)
1/ 2/ 1/ 1/ 1/
alternating current direct current and straight polarity direct current and reverse polarity direct current generators 3 3/ 2/ 3/ 2/
3/
010100020021000D f a welding electrode has the following identifying number .,*01#./ what does the .*0. represent? a) b) c) d) e)
*0 *0/000 *0 *0/000 *00
!a !a psi psi psi
227
010100020021000A f a welding electrode has the following identifying number .,'01'./ what does the .1. represent? a) b) c) d) e)
the welding position A( or D( with medium penetration D( reverse polarity with medium penetration A( with deep penetration D( with deep penetration
110100020021000, 7he electrical power necessary for arc welding may be supplied by a) b) c) d) e)
1$ 2$ 3$ $ 1/ 1/ 1/ 1/ 1/
generators transformers rectifiers pumps 2/ 3/ 2 2/ 2/
3/ 3
010100020021000( With reverse polarity a) b) c) d) e)
the welding electrode is connected to the negative terminal A( power is supplied to the electrode the welding electrode is connected to the positive terminal A( or D( power may be supplied to the electrode D( power is supplied to the electrode
010100020021000( With straight polarity a) b) c) d) e)
A( or D( power may be supplied to the electrode D( power is supplied to the electrode the welding electrode is connected to the negative terminal A( power is supplied to the electrode the welding electrode is connected to the positive terminal
010100020021000D A welding electrode stamped .,'010. would have a tensile strength of a) b) c) d) e)
'/000 '/010 '/100 '0/000 '0/100
psi psi psi psi psi
010100020021000
228
7he item which eeps the weld from o&idi9ing/ cooling too fast/ and the bead smooth during submerged arc welding is the a) b) c) d) e)
arc temperature flu& steadiness of the welder;s hand rod composition rod rate of feed
010100020021000A Advantages of submerged arc welding include1$ 2$ 3$ $ #$ a) b) c) d) e)
2/ 1/ 2/ 3/ 1/
a protective coating is not re%uired over the electrode the arc is not visible weld seams are neat and uniform in appearance a silled welder is not re%uired to operate the machinery very little gas or fumes rise from the weld 3/ / 3/ / 3/
# # # #
010100020021000( 5ubmerged arc welding is a) b) c) d) e)
an o&yacetylene welding process an A( electric welding process an A( or D( electric welding process a D( welding process a bra9e welding process
010100020021000A A common method used to start the arc in submerged arc welding is with a) b) c) d) e)
a piece of steel wool a long wooden match an electric sparer an oil soaed torch a strier similar to that used in o&yacetylene
&elding erms and Inspection 010100020021000A When a weld pass is made to deposit a bacing weld behind the root pass/ it is termed a) b) c) d)
a bacing pass the a&is of the weld bo&ing the lead angle
229
e)
the plug weld
010100020021000 A gas pocet or weld cavity caused by gas or moisture trapped in a weld is called a) b) c) d) e)
a bo& a blowhole coalescence a crater spatter
010100020021000A (oalescence is a) b) c) d) e)
the same as fusion a type of coating used on a welding rod a term used in bra9ing a term used in soldering the mi&ing of gases in a cutting torch
010100020021000 When a weld is made with two pieces of parent metal at or near the same plane the weld is termed a a) b) c) d) e)
fusion weld butt oint weld lap oin weld bevel angle weld bo& weld
010100020021000A When heat from electric current and pressure are used in welding/ it is nown as a) b) c) d) e)
resistance welding forge welding submerged arc welding JQ welding 7Q welding
010100020021000, :on6destructive testing of a weld means a) b) c) d) e)
testing the weld by means of chemical analysis raising the hydrostatic pressure on a vessel to the point of rupture mechanical testing of a sample or small portion of a weld thermal shocing a vessel to the point of fracture subecting the weld to a radiographic inspection
010100020021000, 5lugging is a term which refers to a)
creation of a gas pocet created by gas or moisture trapped in the weld
230
b) c) d) e)
solid non6metallic material trapped in the weld stresses built up in a structure as a result of welding metal particles being sprayed out during the welding process adding pieces of unspecified rod or metal as filler during a weld
010100020021000( 5lag inclusion results from a) b) c) d) e)
metal particles being sprayed out during the weld process adding pieces of rod or metal as filler to the weld solid non6metallic material being trapped in the weld creation of a gas pocet due to trapped gases stresses built up after the weld process
010100020021000A A .reducing flame. is one which is a) b) c) d) e)
rich in acetylene placed an increased distance from the wor o&ygen rich held perpendicular to the weld a&is most liely to cause bacfire
010100020021000 Qas pocets trapped within a weld is commonly called a) b) c) d) e)
flu& porosity spatter slugging fusion
010100020021000( lu& is a) b) c) d) e)
a grouping of gas pocets together in a weld the unspecified pieces of scrap metal added to a weld to speed up the process a granular substance deposited with the weld the metal added as filler to a weld area a gas flame which is neither rich in o&ygen or acetylene
010100020021000( Destructive testing of a weld means a) b) c) d) e)
destruction of one complete weld of a structure or vessel destruction of the complete vessel after construction mechanical testing of a sample or small portion of a weld raising hydrostatic pressure on a vessel to the point of rupture thermal shocing a vessel to the point of fracture
010100020021000 A method of testing a weld which is %uic/ easy/ and
231
ine&pensive is the a) b) c) d) e)
fluorescent penetrant method visual method ultrasonic method dye penetrant method radiographic method
010100020021000A 7he best method of weld inspection if error is to be avoided is the a) b) c) d) e)
visual method fluorescent penetrant method ultrasonic method dye penetrant method radiographic method
010100020021000, When an ultraviolet light is used in weld inspections/ the testing method is a) b) c) d) e)
destructive dye penetrant ultrasonic radiographic fluorescent penetrant
010100020021000( 7he basic difference between fluorescent penetrant and dye penetrant is that dye penetrant a) b) c) d) e)
maes valuable use of penetrameters uses less compounds than fluorescent involves the use of a developer compound cannot be reliable in locating porosity in a weld re%uires a .blac. light to detect cracs
010100020021000D When penetrameters are used for testing welds/ the method being used is the a) b) c) d) e)
dye penetrant ultrasonic fluorescent penetrant radiographic visual
010100020021000D When using radiographic inspections/ defects such as cracs and porosity show up as a) b) c) d)
lighter shadows on the photographic paper wave signals on a small screen darer shadows on the penetrameter darer shadows on the photographic paper
232
e)
lighter shadows on the penetrameter
010100020021000 >ltrasonic inspection involves the use of a) b) c) d) e)
short wavelength radiations high fre%uency vibrations fluorescent penetrant dye radiographic penetrameters gamma rays
010100020021000D 8ules for uses of radiographic and ultrasonic inspection are covered in the a) b) c) d) e)
8ules for (are and
Introduction to Piping and Piping Fittings 010100020021000( 7he mass of a two metre length of schedule 0 pipe/ nominal si9e 101$' mm/ is a) b) c) d) e)
12$0 g + g 31$@ g 2'$@2 g 11$+ g
010100020021000( or power plants/ materials used for the manufacturing of pipes must be a) b) c) d) e)
cast iron seamless stainless steel suited to the operating conditions of the piping system case hardened alloyed with sulphur
010100020021000D n order to convey fluid from one storage tan to another a) b) c) d) e)
valves are re%uired pumps are necessary drains are re%uired piping is re%uired control valves are necessary
233
010100020021000A 7wo main categories of steel piping manufactured are the a) b) c) d) e)
seamless or welded type plastic or steel type ferrous or copper type thic or thin type single or double walled
010100020021000 5ince cast iron has a high resistance to corrosion and abrasion/ it is used for a) b) c) d) e)
underground steam lines ash handling systems condensate lines blow6off piping high pressure service
010100020021000( :on6ferrous materials used in power plant piping are a) b) c) d) e)
made of asbestos not allowed by the A5J, code usually made of brass and copper alloys made of ceramic materials are made of steel
010100020021000A orged steel is used primarily for a) b) c) d) e)
pipe fittings sewer lines steam lines conveying super heated steam ash handling systems water treatment piping and valves
010100020021000D 7he most fre%uently used material for piping is a) b) c) d) e)
non6ferrous cast iron pig iron steel plastic
010100020021000, (ast iron has a high resistance to a) b) c) d) e)
water pressure condensate pressure tensile stress temperature changes corrosion
010100020021000 !iping made of copper and brass are called
234
a) b) c) d) e)
ferrous materials non6ferrous materials soft pipe bron9e materials residential piping
010100020021000, !ipe is manufactured in two main categories/ welded and a) b) c) d) e)
threaded soldered bra9ed flanged seamless
010100020021000 >p to and including 30$+ mm pipe/ the si9e of the pipe is e&pressed as a measure of a) b) c) d) e)
circumference inside diameter outside diameter thicness of the wall outside radius
010100020021000( (ommercial pipe is made in standard si9es each having several different a) b) c) d) e)
1$ 2$ 3$ $ #$
weights colours thicness; shapes threads
1/ 2/ 1/ / 2/
# 3/ 3 # 3/ #
010100020021000A All classes of pipes of a given si9e have a) b) c) d) e)
the the the the the
same same same same same
outside diameter inside diameter length e&pansion coefficient mass per metre run of the pipe
010100020021000D Double e&tra strong pipe is denoted by a) b)
55 25
235
c) d) e)
,5 UU5 D,5
010100020021000( A newer method used to designate pipe wall thicness is by a) b) c) d) e)
measuring the thicness with callipers using a comparitor gage using schedule numbers using a pipe gauge using a pipe graph comparitor chart
010100020021000A As the wall thicness of a pipe increases the a) b) c) d) e)
inside diameter is reduced outside diameter increases the weight of the pipe decreases the bore of the pipe increases the pipe becomes less suitable for steam service
010100020021000( 7he inside diameter of a pipe is e&pressed as the a) b) c) d) e)
average pipe si9e regular pipe si9e nominal pipe si9e circumferential pitch central cross section of service
010100020021000D or varying wall thicness; of pipe/ tables are developed which give the dimensions and a) b) c) d) e)
volume in cu m length in cm diameter in cm s%uare weight in gm thicness in cm
010100020021000( >p to and including 30$+ mm pipe/ the si9e is e&pressed as inside diameter$ a) b) c) d) e)
natural normal nominal greater reduced
010100020021000, n most si9es of pipe/ schedule forty corresponds to wall thicness$ a) b)
e&cessive regular
236
c) d) e)
reduced higher standard
010100020021000A A newer method used to designate pipe wall thicness is number$ a) b) c) d) e)
schedule regulation diameter circumference pipe registration
010100020021000 (opper and copper alloy piping and tubing is not used in power plants when a) b) c) d) e)
pressure is a prime factor temperature is a prime factor instrumentation systems re%uire tubing steam becomes corrosive chemicals are used in the applicable system
010100020021000, As a piping and pipe fitting material/ cast steel is used a) b) c) d) e)
e&tensively for fittings mainly for instrumentation and control piping for construction of welded pipe steam traps primarily for special applications
010100020021000( !ipe fittings which are not clearly identified should be a) b) c) d) e)
used only with water systems tested and used reected painted as re%uired by the colour code reported to the boilers branch
010100020021000D All marings on pipes and pipe fittings must indicate the following three minimum re%uirements1$ 2$ 3$ $ #$ '$ a) b) c) d)
1/ 2/ 3/ 1/
material designation inside diameter manufacturer;s trademar or name flange type service designation national code colour 2/ / / 3/
' # ' #
237
e)
/ #/ '
010100020021000( 7he piping service symbols .A./ .Q./ .<. stand fora) b) c) d) e)
ammonia/ grease/ and o&ygen aluminum/ glass/ and octane air/ gas/ and oil air/ glycol/ and oil ammonia/ gas/ and octane
010100020021000A A valve stamped with the following service symbol letters .Q./ .A./ .5. stands fora) b) c) d) e)
gas/ air/ and steam gaseous substances grease/ acetylene/ and sulphur glue/ acid/ and salt brine glycol/ air/ and saline
010100020021000 A grey cast iron fitting is identified by a) b) c) d) e)
the not the the the
letters Q$($$ being mared on the fittings letters Q$($ letters ($$ letters Q$($$$
010100020021000 ittings used to connect a straight run of same si9e piping are a) b) c) d) e)
nipples couplings bushings elbows return bends
010100020021000D 8elative to pipe and fittings/ an anchor chair is used to a) b) c) d) e)
install piping at considerable height allow for e&pansion and contraction of pipe anchor a slip type e&pansion oint support pipe hold a large fitting in a piping run
010100020021000( (ombine the following gasets with their use 1$ 2$ 3$ $ #$
cor asbestos rope rubber metal asbestos high pressure steam
238
'$ *$ +$ a) b) c) d) e)
lubricating oil cold water flue gas ducts
16*/ 16#/ 16'/ 16+/ 16+/
6+/ 26'/ 36*/ 26*/ 36'/
36'/ 36*/ 6#/ 36'/ 26*/
26# 6+ 26+ 6# 6#
010100020021000 Bow pressure steam pipes are usually connected together by 1$ 2$ 3$ $ a) b) c) d) e)
1/ 1/ 2/ 1/ 3/
welding glands screwed fittings flanges 2/ 3/ 3/ 2/
3 3/
010100020021000A 7he best material for gasets in very high temperature areas would be a) b) c) d) e)
metallic cor nylon plastic foam rubber
010100020021000( A disadvantage of using threads to oin pipes and fittings is/ that it a) b) c) d) e)
is more costly cannot be repaired weaens the pipe does not allow for e&pansion re%uires the services of a pipe fitter
010100020021000D 7he vanstone type flange fits on the pipe a) b) c) d) e)
in a fi&ed position by being welded onto the inside circumference of the flange by being threaded on the ends loosely by evenly spaced set screws
010100020021000D When tightening pipe flange bolts a)
tighten them in se%uence
239
b) c) d) e)
the gaset should be held in place by gaset glue the top bolts must be tightened first use a cross6over method or criss6cross method of tightening tighten every second bolt first then tighten the others
010100020021000 Welding together pipe si9e of two inch nominal si9e and smaller is usually done by a) b) c) d) e)
the o&ygen6acetylene method the socet welded method the butt welded method non6pressure welders pipe fitters
010100020021000( y using bacing rings in butt welded pipes/ the bacing ring serves to a) b) c) d) e)
reinforce the pipe because of bevelling at the oint reduce sludge flow align the pipe support the pipe to the wall prevent welding gases from entering the pipe line
010100020021000D 8ing oint gasets are a) b) c) d) e)
round in cross6section flat s%uare in cross6section oval in cross6section hollow
010100020021000A Qasets are used in pipe flange oints to a) b) c) d) e)
prevent leaage because of small imperfections in the flange face allow for pipe e&pansion between each flanged oint mae up for the misalignment of the pipe provide cushioning in the event of water hammer prevent air ingress in high pressure steam mains
010100020021000A A bellows type corrugated e&pansion oint is suitable for pressures up to appro&imately a) b) c) d) e)
2/000 !a #00 !a 1/000 !a 30/000 !a 1#/000 !a
010100020021000, A device which incorporates a swirling motion to remove moisture from a piping system is the
240
a) b) c) d) e)
steam trap baffle type separator chevron drier centrifuge centrifugal separator
010100020021000D 7he two types of e&pansion oints are the and the slip e&pansion oint$ a) b) c) d) e)
bolted fi&ed stationary bellows rotating
01010002001000 ,&pansion of piping is controlled by1$ 2$ 3$ $
a) b) c) d) e)
anchoring the pipe at both ends to prevent movement installing a corrugated e&pansion oint in the line installing an e&pansion bend in the line anchoring the pipe at both ends and installing hangers every five metres
1/ 2/ 2/ 1/ 2/
2 3 3/ 2/ 3/ 3/
010100020021000A ,&pansion bends have the advantage over the e&pansion oint for one of the following reasonsa) b) c) d) e)
being stronger they are thinner they are heavier they are cheaper they are portable
010100020021000D ,&pansion bends or oints are implemented in piping systems to a) b) c) d) e)
allow for correct piping drainage give allowance for pressure increases protect against water hammer damage allow for e&pansion and contraction of the piping reduce pipe costs
010100020021000 !ipe hangers are installed at three metre intervals to1$ 2$
align the pipe eep the pipe out of the way of foot traffic
241
3$ $ #$ a) b) c) d) e)
1/ 1/ 1/ 1/ 2/
provide a proper drainage slope support the weight of the pipe/ valves/ and fluid contained within the pipe allow for pipe e&pansion 2/ 3/ 2/ 2/ 3/
/ # # 3/ / # #
010100020021000D 7he bellows type e&pansion oint is good for pressures up to appro&imately a) */000 !a b) *00 !a c) 1#/000 !a d) 2/000 !a e) #/000 !a 010100020021000D A slip type pipe e&pansion oint1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 1/ 1/ 1/ 2/
is stronger than the bellows types is actually a pipe within a pipe can have pacing added when in service has a lubrication fitting is usually flame fitted to the pipe 3/ 2/ 2/ 2/ 3/
/ # # 3/ / # #
010100020021000 efore admitting any steam to a steam piping system it is imperative to first a) b) c) d) e)
warm the line up properly positively ensure that no water or condensate e&ists in the piping ensure drain valves are closed crac open the steam valve ensure the steam pressure is at ma&imum value allowed without the boiler safety valve opening
010100020021000( (old water piping systems are usually insulated so that a) b) c) d) e)
the loss of heat is prevented the ingress of heat is prevented corrosion is minimi9ed or eliminated appearance is improved water hammer is eliminated
242
010100020021000, An insulation suitable for temperatures up to 30 degrees ( is a) b) c) d) e)
plastic foam asbestos magnesia glass fibre cellular glass
010100020021000( ,ase of application and installation is a desirable property of a) b) c) d) e)
pipe fittings asbestos insulation pipe insulation piping tubing
010100020021000( mproper drainage of steam lines could a) b) c) d) e)
result in e&cessive steam pressures cause low pressure in the lines eventually result in water hammer give e&cessive weight to the pipe render the feed water pump ineffective
010100020021000 !iping insulation should have the following characteristics1$ 2$ 3$ $ #$ '$ a) b) c) d) e)
1/ 1/ 1/ 1/ 1/
be non6corrosive a low heat conductivity high eddy current values be easy to remove from the pipe retain its shape and insulating value when wet be vermin proof 2/ 2/ 3/ 2/ 3/
/ #/ / 3/ #
' ' # #
010100020021000A 7he main purpose of installing insulation on pipe systems is to a) b) c) d) e)
prevent heat transfer give the pipe a neat appearance prevent inury to personnel due to contact with the bare surfaces of the pipe provide a paintable surface prevent condensate from evaporating in the lines
010100020021000(
243
!lastic foams used for pipe insulation are a) b) c) d) e)
used for high temperature service for refrigeration system piping only for lower temperature insulation purposes prohibited from power plant use glued directly to the pipe
010100020021000, nsulating pipes which carry substances lower than the ambient air temperature/ will prevent on the pipe and conse%uent dripping and corrosion$ a) b) c) d) e)
discoloration evaporation water hammering e&pansion sweating
010100020021000( 7he purpose of a steam separator is to remove from the steam$ a) b) c) d) e)
oil air moisture gas non6condensables
010100020021000D 7he purpose of steam traps is to remove condensate and from steam lines$ a) b) c) d) e)
oil water chemicals non6condensables sludge
010100020021000, A should be installed ust ahead of a steam trap$ a) b) c) d) e)
chec valve non return valve pressure gauge pressure reducing valve sediment separator
010100020021000 A mechanical steam trap a) b) c) d)
can be fitted in any position may have a thermostatic air release should be fitted to the safety valve drain has alcohol inside the float
244
e)
has a very low pressure range of operation
010100020021000( A thermostatic trap is controlled by a a) b) c) d) e)
difference in velocity between condensate and steam combination of bucet and float temperature differential between condensate and steam bucet which tips when filled with condensate high level float control
010100020021000( A purpose of a steam trap is to a) b) c) d) e)
prevent steam from flowing in the steam line prevent air from flowing in the steam line automatically drain condensate from steam lines cause the water in steam lines to accumulate hold bac foreign particles from the steam line
010100020021000( 7he purpose of a steam trap is to a) b) c) d) e)
collect steam for storage purposes reduce high pressure steam to a lower pressure remove condensation from steam lines without allowing steam to pass remove steam from a steam line without allowing water to pass prevent sludge compounds from entering the steam line
010100020021000D 5team traps are usually located a) b) c) d) e)
at at at at at
the the the the the
highest point of a steam line highest point of a hot water line lowest point of a hot water line lowest point of a steam line hottest point of a steam line
010100020021000, 7he operation of a mechanical steam trap depends on the a) b) c) d) e)
difference in temperature between the steam and condensate difference in specific gravity between the steam and condensate difference in pressure between the steam and condensate li%uid level in the condensate tan li%uid level in the steam trap
010100020021000 7wo fittings that can be found on a steam separator are1$ 2$ 3$ $ #$
gauge glass pressure gauge vent valve steam trap safety valve
245
a) b) c) d) e)
1/ 1/ 2/ / 2/
2 3 # #
Introduction to "al/es 010100020021000( A valve which has the best capability of handling slurries and fluids with high suspended solids is the a) b) c) d) e)
globe valve gate valve ball valve needle valve plug valve
010100020021000A A valve having minimum wire drawing and seat erosion is the a) b) c) d) e)
globe valve gate valve plug valve hand valve wedge gate valve
010100020021000, A valve which re%uires specific and routine lubrication is the a) b) c) d) e)
butterfly valve globe valve pressure reducing valve chec valve tapered plug valve
010100020021000D A valve which often contains a dashpot to cushion the action of the valve is the a) b) c) d) e)
needle valve swing chec valve pressure regulating valve lift chec valve safety valve
010100020021000A ncreasing the spring tension of a pressure regulating valve will a) b) c)
increase the regulated pressure downstream of the valve close the valve tight decrease the regulated pressure downstream of the valve
246
d) e)
cause the valve to go to the wide open position reduce or minimi9e the cycling or .hunting. of the valve
010100020021000 n order to ensure safe and continuous operation of a pressure reducing valve/ the valve station should have a) b) c) d) e)
a safety valve on the downstream side a by6pass loop/ downstream safety valve/ and a downstream pressure gage the piping to the station made of at least 5chedule +0 piping a 46strainer immediately after the valve a metal rather than composition diaphragm
010100020021000A A chec valve is a valve that a) b) c) d) e)
allows flow in one direction only allows flow in two directions allows flow at regular intervals does not allow any flow at all has a locing spindle
010100020021000D 7he by6pass around a regulating valve should contain a a) b) c) d) e)
rising stem gate valve non6rising stem gate valve swing chec valve rising stem globe valve lift type chec valve
010100020021000( A gate valve1$ 2$ 3$ $ a) b) c) d) e)
1/ 1/ 1/ 2/ 2/
has less restriction in a line than a globe valve should be operated either fully open or fully closed is used to throttle flow is used for different applications than a globe valve 2/ 3/ 2/ 3/
3/
010100020021000D A globe valve1$ 2$ 3$ $ a) b)
has less restriction in a line than a gate valve should be operated either fully open or fully closed is used to throttle flow is used for different applications than a gate valve
1/ 2/ 3/ 2/ 3/
247
c) d) e)
1/ 2/ 1/ 3/ 2/
010100020021000 utterfly valves have several advantages such as they1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 2/ 2/ 3/ 1/
only re%uire 1 turn to open are self6cleaning provide negligible pressure drop when fully open can have the disc lubricated while in operation are self6adusting so alignment is not re%uired during installation 3 3 / # 2/ #
010100020021000( 7he ma&imum temperature which a non6special alloy steel valve can be used for is a) b) c) d) e)
2+0 degrees ( 2# degrees ( '#0 degrees ( 1/000 degrees ( 1/#00 degrees (
010100020021000, 8elative to valves/ a fre%uent cause of serious accidents is due to a) b) c) d) e)
valves being of the wrong si9e a lac of valve maintenance inade%uate operational training manufacturing defects wrong materials of construction
010100020021000 n order to e&tend the life of valve pacing we can a) b) c) d) e)
operate the valve at lower temperatures lubricate the pacing regularly with oil replace the pacing annually manipulate the valve slower manipulate the valve on a regular basis
010100020021000A 8egular inspection of a valve is important and items which re%uire close scrutiny are the a) b) c)
disc and seat stem and body seat and stem
248
d) e)
stuffing bo& and spindle threads hand wheel and pacing
010100020021000, Galve pacing/ depending on service/ may be made from 1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 2/ 1/ 3/ 1/
7eflon manila impregnated asbestos =alon semi6metallic material 2/ 3/ 2/ / 3/
# 3 # #
010100020021000( .Galve trim. consists of the following parts1$ 2$ 3$ $ #$ '$ *$ a) b) c) d) e)
1/ 3/ 2/ 1/ 2/
stuffing bo& disc seat ring bonnet valve stem body guide bushings 2/ / 3/ 2/ 3/
/ #/ #/ '/ /
' ' * * #
010100020021000 Jaterial designation of a pipe fitting a) b) c) d) e)
gives where the material is used tells what material maes up the fitting gives the temperature to which the fitting can be subected tells what the material is suited for is not re%uired for low pressure steam service
010100020021000D All marings on pipe and pipe fittings shall be a) b) c) d) e)
painted with blac paint made with capital letters covered for protection legible written vertically in capital letters
010100020021000( 5ervice designation of a pipe fitting indicates the
249
a) b) c) d) e)
type of li%uid used in the fitting type of gas used in the fitting temperature6pressure rating of the fitting ma&imum pipe fluid flow velocity ma&imum viscosity of the fluid
010100020021000( !ressure andor temperature rating of a fitting is nown as a) b) c) d) e)
material designation manufacturer;s trademar service designation thermal designation wor re%uirement
010100020021000, 7he advantage of a rising spindle steam stop valve is that1$ 2$ 3$ $
a) b) c) d) e)
3/ 1/ 1/ 2/ 1/
you can tell from a distance if the valve is open or closed it provides a place to install isolation tags it may be easily lubricated the threaded part is not e&posed to corrosion by the high temperature steam 2/ 2/ 3/ 3/
3
010100020021000 7he purpose of the non6return valve is to a) b) c) d) e)
prevent water from entering the steam header prevent the bac flow of steam drain condensate from the main steam header prevent the safety valve from popping regulate the flow of steam from the boiler
De/elopment o# Boiler Design 010100020021000( A straight tube longitudinal drum boiler with a chain grate stoer usually had a) b) c) d) e)
one pass two passes three passes four passes an internal furnace
010100020021000( 7he =aycoc boiler was
250
a) b) c) d) e)
a watertube unit of multiple flue gas pass design used around 1*20 of welded construction a pacaged unit
010100020021000A A characteristic which made early boilers very inefficient was a) b) c) d) e)
lac of heating surface an e&cess of flat surfaces the internal furnace lac of good %uality fuels inade%uate water treatment
010100020021000A An early boiler having a longitudinal shell or drum had as its heating surface a) b) c) d) e)
only the lower part of the shell the lower part of the shell and the rear plate or head the total shell side and one end plate or head only the one end plate two passes along the shell or drum
010100020021000( 7hermal flooding boilers a) b) c) d) e)
are often termed .=ot Water oilers. are low capacity units are used to inect steam into geological formations do not use water as the heat transfer medium are used in the generation of electricity
010100020021000 7he first boiler to have an internal furnace was the a) b) c) d) e)
=87 boiler 5cotch boiler longitudinal drum firetube boiler locomotive boiler watertube boiler
010100020021000, A is a water6filled section which surrounds the firebo& in locomotive boilers$ a) b) c) d) e)
crown sheet boiler drum tell tale stay steam dome water leg
010100020021000, 7he first boiler to have firetubes became nown as the
251
a) b) c) d) e)
=aycoc boiler 5cotch boiler Jushroom boiler =aystac boiler =87 boiler
010100020021000D 7he water leg was introduced with the a) b) c) d) e)
scotch boiler longitudinal drum boiler watertube boiler locomotive boiler =87 boiler
010100020021000A 5afety/ efficient operation/ and economical fuel consumption are a) b) c) d) e)
main considerations when designing boilers the main advantages of a watertube unit over a firetube unit the result of .pacaged unit. construction due to improved metals and alloys the results of environmental protection laws
010100020021000( 7he steam space of a boiler must be large in order to a) b) c) d) e)
eep the steam pressure down reduce the cooling effect of water separate the water from the steam accommodate all the steam riser tubes accommodate a steam separator
010100020021000 Waterlegs generally a) b) c) d) e)
act as support for a boiler surround a furnace do not act as heating surface do not re%uire staying never presented any waterside problems
010100020021000 All parts of the boiler e&posed to fire or hot gases must be a) b) c) d) e)
made of firebric covered by water air cooled fitted with e&pansion oints covered with ceramic tile
010100020021000 oiler structural strength must
252
a) b) c) d) e)
be at least ten times the normal woring pressure rating be at least e%ual to the various code re%uirements tae into account only pressure values and not consider temperatures be increased if thinner metal is to be used be verified by the purchaser
010100020021000A A steam boiler should be compact in design in order to a) b) c) d) e)
reduce building costs be easier to move weigh less be easier to maintain reduce operating costs
Basic Boiler erminolog% 010100020021000( A boiler which will start and stop without human help once a start6up is initiated is termed a) b) c) d) e)
semi6automatic self regulating automatic modulating controlled unit pacaged
010100020021000 7he ma&imum energy input to a hot water supply boiler is a) b) c) d) e)
# B per minute #+$* W 20/000 7> 12* mperial gallons per minute #+* W
010100020021000 or hori9ontal firetube boilers/ the lowest visible water level in the gage glass is set not less than above the highest point of the tubes$ a) b) c) d) e)
2 inches 3 inches #0 mm 1 inch 2# mm
010100020021000, A low pressure steam boiler is one which operates a) b) c) d)
at an above above above
energy input above #+$* W 103 !a 121 degrees ( 1100 !a
253
e)
at or below 103 !a
010100020021000, A device used on smaller heating boilers to measure water .head. or height is the a) b) c) d) e)
gage glass header pressure gage siphon altitude gage
010100020021000A An e&le of a boiler fitting would be a a) b) c) d) e)
temperature controller forced draft fan combustion chamber drum sootblower
010100020021000D An induced draft fan handles a) b) c) d) e)
air from the combustion process air going to the combustion process flue gases going to the combustion process flue gases from the combustion process fuel gases from the combustion process
010100020021000 7he lowest permissible water level of a power boiler is a) b) c) d) e)
2# #0 2# #0 *'
mm mm mm mm mm
below below above below below
the the the the the
lowest visible water line lowest visible water line fireline fireline visible water line
010100020021000, A device which must be replaced each time it performs its function is the a) b) c) d) e)
low water fuel cut6off high steam pressure limiting control safety valve blowoff valve rupture dis
010100020021000(
the boiler firebo& refractory the setting of the boiler the boiler casing
254
e)
the windbo&
010100020021000D A device which usually uses air or steam to do its ob is the a) b) c) d) e)
siphon operating control burner sootblower try coc
010100020021000D A boiler component which surrounds the burner of most boilers is the a) b) c) d) e)
waterleg stac uptae windbo& refractory
010100020021000, 7he low water cut6off is a device fitted to the boiler to shut the a) b) c) d) e)
feed water supply off/ if the fuel supply is too low feed water supply off/ if the steam pressure becomes too high feedwater supply off/ if the boiler temperature becomes too high fuel valve off if the water level becomes too high fuel valve off if the water level becomes too low
010100020021000( Janholes are openings through which a person can a) b) c) d) e)
enter the boiler furnace inspect the boiler uptae enter the boiler shell or drum enter and inspect the steam header enter the ash hopper
010100020021000 A furnace baffle is a) b) c) d) e)
used to prevent the fire from striing the tubes installed to direct the hot flue gases used to prevent the water from surging used to deflect the flame installed to prevent carryover
010100020021000D 7he windbo& of a boiler is a) b)
where the fuel and air are mi&ed for combustion what the forced draft fan is installed into
255
c) d) e)
the collector of the e&haust gases before they go into the uptae the ductwor surrounding the burners on the outside of the boiler into which the air for the burners is introduced always maintained under a negative pressure
010100020021000A A chec valve a) b) c) d) e)
allows flow in one direction only regulates the flow of feedwater to the boiler is used to isolate the steam gage is not considered a fitting will .pop. open when pressure inside the drum reaches a set point
010100020021000( A steam gage a) b) c) d) e)
indicates the level of water in a boiler is not considered a boiler fitting indicates the internal pressure of the boiler is re%uired on power boilers only will reset once the boiler pressure has dropped
Firetu)e Boilers 010100020021000( =87 boiler firetubes have a diameter range of a) b) c) d) e)
2# to #1 mm #1 to 102 mm *' to 102 mm 102 to 13* mm 12# to 1*' mm
010100020021000 A device used to prevent the carry6over of moisture with the steam of an =87 boiler is the a) b) c) d) e)
internal pipe dry pipe no99le head pipe crown tube
010100020021000( With regard to a steam boiler/ the lettering .=87. means a) b) c) d) e)
highly regulated temperature hot return tubes hori9ontal return tubular highly regulated treatment hori9ontal receiver tubes
256
010100020021000A An advantage of a locomotive boiler over other boilers of the era was a) b) c) d) e)
rugged construction better cleaning and repair access improved water circulation less stays were re%uired lower maintenance costs
010100020021000, A component used to increase the volume of the steam space in a locomotive boiler was the a) b) c) d) e)
crown sheet steam leg shell head dry pipe steam dome
010100020021000( A boiler which utili9ed a waterleg and was primarily used for heating purposes was the a) b) c) d) e)
=87 boiler locomotive boiler firebo& boiler 5cotch boiler marine boiler
010100020021000D A maor disadvantage of a firebo& is a) b) c) d) e)
first cost is relatively high it has a low heat transfer efficiency it is not very compact cleaning and inspection can be difficult it has only one flue gas pass
010100020021000 7he firebo& boiler is a pass firetube boiler$ a) b) c) d) e)
single two three vertical hori9ontal
010100020021000, A corrugated furnace will give re%uired strength with thinner metal/ increase heating surface/ and a) b)
increase the boiler mass add to the overall material cost of the unit
257
c) d) e)
decrease combustion turbulence will necessitate the boiler being made longer allow for differential e&pansion and contraction
010100020021000 7he wetbac 5cotch boiler was designed primarily for a) b) c) d) e)
building heating service marine service traction engine service railway service very high capacity electrical generation
010100020021000D n a pacaged firetube boiler the flue gas velocity within the unit is maintained by a) b) c) d) e)
increasing forced draft fan speed constructing a taller stac varying the firetube lengths varying the total cross6sectional area of the fire tubes in each pass decreasing forced draft fan speed
010100020021000D A boiler which is built ready for installation is the a) b) c) d) e)
5cotch marine boiler firebo& boiler =87 boiler pacaged boiler locomotive boiler
010100020021000D A firetube boiler is one which has a) b) c) d) e)
water on the inside of the tubes and the hot gas of combustion on the outside$ the furnace as the first pass of the burner flame$ water on the outside of the tubes and hot water on the inside of the tubes$ water on the outside of the tubes and the hot gas on the inside of the tubes$ internally fired tubes surrounded by water$
010100020021000, When the hot combustion gases travel through boiler tubes which are surrounded by the boiler water/ the boiler is called a a) b) c) d) e)
watertube boiler tubular boiler pacaged boiler coil type boiler firetube boiler
010100020021000D 7he advantages of a pacaged boiler are-
258
1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 2/ 2/ 1/ 2/
lower freight costs because of less handling lower initial cost because they are mass produced %uality control is easier to implement the boilers can be factory tested before being sent to the customer it re%uires little time to put the unit into operation at the plant site 3 # 3/ 2/ 3/ / # 3/ / #
&atertu)e Boilers 010100020021000( n a longitudinal straight tube boiler the downcomer fed a) b) c) d) e)
.cool. water to the steam drum .hot. water to a riser .cool. water to a rear header .cool. water to a front header .hot. water to the water tubes
010100020021000D A pacaged watertube boiler having two mud drums is the a) b) c) d) e)
.<. type .D. type three drum bent6tube type .A. type 5terling type
010100020021000D =igh pressure watertubes a) b) c) d) e)
are always smaller than firetubes are elliptical in cross6section are always straight can be of various bent configurations re%uire pumps for circulation
010100020021000 ent tube watertube boilers a) b) c) d) e)
cannot have the furnace water6lined mae more efficient use of the furnace are e&ternally fired cannot be fitted with heat recovery components have poor utili9ation of floor space
010100020021000(
259
A cross drum straight tube boiler a) b) c) d) e)
could not have higher capacity than a longitudinal drum unit was usually only of single pass design could have more inclined tubes than a longitudinal drum unit is a very popular design in today;s plants was internally fired
010100020021000, Watertube boilers are better suited to higher pressures than firetube boilers/ because they1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 1/ 2/ 1/ 1/
incorporate a bent tube design are larger than firetube boilers do not have flat surfaces subected to pressure usually have smaller diameter tubes have smaller diameter drums 2 3/ 3/ 2/ 3/
# # # / #
010100020021000( 7he use of bent tube boiler designs allows the furnace wall to be lined with tubes/ thereby e&posing more of the heating surface to a) b) c) d) e)
convection heat conducted heat radiant heat residual heat latent heat
010100020021000D 7he bent tube boiler design allows the tubes to be attached radially on the outside of the a) b) c) d) e)
furnace superheater economi9er shell or drum air preheater
010100020021000D 5ince furnace pressure is often positive on a pacaged watertube boiler/ in order to prevent flue gas leaage a) b) c) d) e)
an induced draft fan is incorporated smoe stacs are made taller an economi9er is used a steel casing forms a seal for the furnace sootblowers cannot be used
260
010100020021000A ,&cessive vibrations caused by inade%uate support of a watertube boiler can result in a) b) c) d) e)
insulation failure water level control problems tube failure drum fracture combustion control problems
010100020021000A A problem with a D6type watertube pacaged boiler is a) b) c) d) e)
e&cessive vibration ceiling height re%uirements refractory maintenance for the e&ternal furnace its need to be top supported its poor water circulation
010100020021000 A unit which would most liely utili9e a cyclone furnace would be the a) b) c) d) e)
5terling watertube boiler steam generator pacaged watertube boiler .D. type boiler three drum bent6tube boiler
010100020021000A Barge steam generating units may have their superheaters located1$ 2$ 3$ $ #$ a) b) c) d) e)
2/ / 1/ 1/ 3/
beneath the furnace in the convection 9one in the main waterwall header in the radiant 9one in the downcomer pipe # 3 2/ # / #
010100020021000D Barge steam generators a) b) c) d) e)
are bottom supported are fired by pulveri9ed coal only have sluggish water circulation are usually of the water tube type have beaded tubes
010100020021000 Barge steam generating units are usually built so that high pressure/ high temperature/ and dry steam can be generated in
261
order that a) b) c) d) e)
more fuel can be fired large steam turbines can be used to drive electrical generators higher furnace temperatures can be attained less water treatment is necessary stac temperatures can be maintained at a high level to prevent condensation
010100020021000, A steam generator economi9er is usually located a) b) c) d) e)
between the air preheater and D fan between the primary and secondary superheaters after the reheater in the furnace section between the air preheater and primary superheater
010100020021000D 7he most economical fuel to burn in a steam generator is a) b) c) d) e)
natural gas crushed coal heavy fuel oil pulveri9ed coal crude oil
010100020021000A ,conomi9ers a) b) c) d) e)
increase the boiler efficiency are installed before the superheater increase the steam temperature increase the air temperature increase the flue gas temperature
010100020021000 Air heaters in a boiler a) b) c) d) e)
are installed between the superheater and the economi9er$ reduce the temperature of the flue gases going to the stac$ help the boiler from free9ing during the winter period$ increase the flue gas temperature$ maintain a steady higher temperature in the stac$
010100020021000A Air heaters are implemented in steam generating units in order to1$ 2$ 3$ $ a) b) c)
recover heat from the hot flue gases improve boiler thermal efficiency produce dryer steam heat the feedwater
1/ 2 2/ 3 1/ 2/
262
d) e)
3/ 2/ 3/
010100020021000 (ombustion air for the burners is preheated in the by hot flue gases$ a) b) c) d) e)
economi9er air heater superheater windbo& furnace
Electric Boilers 010100020021000D ,lectric boilers a) b) c) d) e)
re%uire tall stacs for pollution dispersal tend not to be very compact re%uire sootblowers when fuel is coal have energy conversion efficiencies close to 100R are not as safe as other boilers
010100020021000D A main disadvantage of an electric boiler is a) b) c) d) e)
they are not very compact furnace refractory tends to be high maintenance item vibration re%uires special footings input energy cost is high energy transfer efficiency is low
010100020021000D An advantage of an electric boiler is/ that it a) b) c) d) e)
has a high steaming rate can be operated at high pressures and temperatures produces very dry steam has a high efficiency of energy transfer from the electricity to the boiler water does not re%uire an operator
010100020021000A An advantage of an electric boiler is that it a) b) c) d) e)
is silent in operation can rapidly produce steam can produce steam at very high pressures re%uires only one blow6off valve does not re%uire a sight glass
010100020021000, Jost electric boilers are limited in pressure to about 2100 !a due to the effect of high temperature on the
263
a) b) c) d) e)
steam space submerged area boiler fittings vessel structure elements or electrodes
010100020021000D A boiler which incorporates a baset and a baset drain valve is the a) b) c) d) e)
steam generator immersion boiler 5terling boiler electrode boiler thermal flood boiler
010100020021000
30/000 volts 1'/000 volts #/000 volts ##0 volts 20 volts
010100020021000 ,lectrode boiler capacities can be as high as a) b) c) d) e)
1'/000 W 30/000 W 1/200 !a 1/200 W 30/000 !a
010100020021000D 7he electrode type boiler a) b) c) d) e)
cannot have a varying load must operate at very constant pressure utili9es bundles of electric elements re%uires water which conducts electricity will produce hydrogen by electrolysis of water
010100020021000 7he steam produced by an electrode type boiler depends on a) b) c) d) e)
the the the the the
voltage supplied to the elements level of water in the baset number of heating elements engaged number of baffles amperage supplied to the elements
010100020021000A 7he amount of current passed through the water of an electrode boiler depends on
264
a) b) c) d) e)
the the the the the
depth of the electrodes in the water control valve setting steam pressure in the boiler water %uality water temperature
010100020021000,
re%uires alternating current re%uires D( power has no chimney is not very efficient is very e&pensive to operate
010100020021000D A is not re%uired on an electrode electric type boiler$ a) b) c) d) e)
safety valve gauge glass blow6off valve low water cut6off pressure gauge
010100020021000A An immersion electric boiler capacity can be as high as a) b) c) d) e)
1/#00 W 2/100 W 30/000 W 1'/000 W #/000 W
010100020021000 mmersion boiler tube bundles a) b) c) d) e)
act to conduct current through the water can be easily removed from the unit for maintenance purposes cannot be used to regulate steaming capacity have very low electrical resistance operate at only one voltage
010100020021000( 7here are two general designs of electric boilers$ 7hey are the a) b) c) d) e)
firetube type and water tube type A( and D( type electrode and immersion type grounded and ungrounded type reverse polarity and negative ground
010100020021000 (ontrol of the immersion heater boiler is done by a)
transforming the voltage to a lower value
265
b) c) d) e)
turning the power on and off to the elements as re%uired a float switch increasing and decreasing water flow recirculating boiler water
010100020021000, 7he immersion heater boiler has its elements arranged a) b) c) d) e)
as isolated units in the steam space e%ually spaced in the steam space outside the boiler shell to provide easy access for maintenance for operation in se%uence on the underside of the shell as groups of elements submerged in the water space
010100020021000 (ontrol of the immersion heater boiler is done by turning on and off the supply to one or more elements as re%uired$ a) b) c) d) e)
water power steam amperage current
Basic Boiler (onstruction 010100020021000 (ommon shell and drum thicness range is a) b) c) d) e)
2 to 12 mm ' to 2#0 mm 1# to 300 mm 100 to 1/000 mm 200 to 2#0 mm
010100020021000(
combustion chamber pacaged boiler steam or water drum steam header steam space
010100020021000A 7he circumferential seam of a riveted boiler shell utili9ed the a) b)
lap oint/ single or double riveted treble riveted butt oint
266
c) d) e)
double e%ual strap double riveted butt oint double une%ual strap treble riveted butt oint always a single riveted lap oint
010100020021000A =ead6to6drum circumferential oints are usually a) b) c) d) e)
double single fillet double fillet
welded welded welded welded welded
butt oints edge oints corner oints tee oints lap oints
010100020021000( With regard to welding/ heat treatment a) b) c) d) e)
will increase the hardness of the material results in better penetration of the weld will relieve stresses in the material due to welding is done before the actual welding taes place is done to warm the welding machine before use
010100020021000, A non6destructive test on a boiler is a) b) c) d) e)
a tensile test a bend test a shear test an U6ray test all of the above
010100020021000 !ost weld heat treatment is a) b) c) d) e)
to mae the material hot enough for welding heating the material after welding to improve weld penetration to clean up the welded area done to reduce corrosion
010100020021000 7ubes for high pressure service are usually a) b) c) d) e)
resistance welded construction roll and pierce construction lap welded construction flared into the drum or tubesheet of 2 metre ma&imum length
010100020021000( A tube e&pander is used to a) b) c) d) e)
brea loose scale in the tube brea loose scale outside the tube e&pand and flare the tube bead the tube e&pand the entire tube
267
010100020021000D 7he flat surfaces which re%uire staying in a firetube boiler are the tubesheets/ waterlegs/ and a) b) c) d) e)
furnace tubes flue gas baffles uptaes crown sheets access doors
010100020021000A oiler stays a) b) c) d) e)
are used to support flat surfaces in a boiler are mostly used in water tube boilers have to be replaced every two years are used for hot water heating boilers only are made of hollow tubes
010100020021000( A maor force which acts to hold a manway door in place during boiler operation is a) b) c) d) e)
the bolt the combination of bolt and yoe pressure within the boiler the manway gaset the yoe
010100020021000, A boiler no99le attachment2 a) b) c) d) e)
can be found in the area of the burner is always installed vertically allows a connection for the uptae is used for steam cleaning the fireside nearly always accommodates a valve or fitting
010100020021000 Janholes are a) b) c) d) e)
installed on all boilers provided for inspection purposes always circular in shape installed on fossil fired boilers only always oval in shape
010100020021000D A Jorison furnace is a) b) c) d) e)
found in electric boilers found in locomotive boilers found in watertube boilers found in firetube boilers a ring6reinforced type furnace
268
010100020021000, nternal furnaces are a) b) c) d) e)
mostly used to superheat the steam contained within the windbo& of a boiler used to increase the strength of the drum used for oil firing only contained within the shell of the boiler
010100020021000( With a bottom6supported boiler/ the steam drum is usually2 a) b) c) d) e)
a cross6drum supported by supported by supported by placed below
configuration an overhead girder arrangement the watertubes piers the centreline of the unit
010100020021000 oilers supported from the top a) b) c) d) e)
are are can are can
mostly pacage boilers free to e&pand vertically only be used on small units usually not of the large water tube type only use straight tubes
010100020021000D 7hree types of furnace water6walls are the tangent tube/ welded fin/ and a) b) c) d) e)
flat stub corrugated refractory baced flat stud metal lath
010100020021000( n early boilers furnace walls were constructed of bric$ 7oday this method has been replaced by the use of a) b) c) d) e)
baffles steel casing tubes to form the furnace walls plastic insulation bloc insulation
Boiler Dra#t Equipment 010100020021000D A way of increasing natural draft is to a) b) c)
incorporate a forced draft fan have the outside air temperature increase install an induced draft fan
269
d) e)
increase stac height decrease the amount of e&cess air
010100020021000, When draft is produced by natural means/ a) b) c) d) e)
hot air surrounding the boiler increases draft fans can control the flue gas flow a short stac will increase draft the diameter of the stac will improve the draft cooler air surrounding the boiler increases draft
010100020021000D !rimary air a) b) c) d) e)
is supplied in the combustion 9one is the same as e&cess air is supplied on all types of burners is pre6mi&ed with the fuel before being admitted to the furnace enters the furnace before the fuel
010100020021000 A more durable chimney for power plant application is the a) b) c) d) e)
bric chimney reinforced concrete chimney steel chimney insulated steel chimney guy wire supported chimney
010100020021000( (himneys are commonly lined with a) b) c) d) e)
concrete common bric clay mortar insulation
010100020021000( 7he advantage of a steel stac over a reinforced concrete stac is that a steel stac a) b) c) d) e)
is more durable re%uires less maintenance is a lower cost has a longer life is more resistant to abrasive flue gases
010100020021000A 8elative to draft/ a steam et is very popular a) b) c) d)
on railway steam locomotives as a fuel atomi9er as a forced draft unit for increasing furnace pressure
270
e)
for decreasing draft during cold weather
010100020021000D What are the advantages of mechanical draft? 1$ 2$ 3$ $ a) b) c) d) e)
1/ 1/ 1/ 2/ 3/
dependent on atmospheric air temperatures independent of the chimney temperature better draft regulation can be regulated accurately 2/ 2/ 3/ 3/
3/ 3
010100020021000( n a balanced draft system the air heater is placed1$ 2$ 3$ $ a) b) c) d) e)
1/ 2/ 2/ 1/ 1/
between D fan and stac between D fan and boiler between forced draft fan and boiler on inlet ducting to forced draft fan 2/ 3 3/ 3 3/
010100020021000A 7he most efficient operation of a fan demands that a) b) c) d) e)
the speed be only sufficient enough to supply the re%uired amount of air inlet damper controls are used outlet damper controls are used constant speed electric motors are used gaseous fuels be fired
010100020021000A alanced draft a) b) c) d) e)
means furnace pressure is maintained at some desired value means air flow is always constant re%uires an D and D fan/ never ust an D fan can be accomplished with ust a chimney means air and fuel %uantities are the same per unit time
010100020021000, An induced draft fan a) b) c)
is physically smaller than a forced draft fan has less e&pensive materials of construction than an D fan handles only air
271
d) e)
discharges air to the windbo& operates at much higher temperatures than an D fan
010100020021000D A pressuri9ed furnace is usually associated with a) b) c) d) e)
balanced draft induced draft natural draft pacaged boilers with D large steam generators
010100020021000A nduced draft may be accomplished by a1$ 2$ 3$ $ a) b) c) d) e)
steam et fan windbo& forced draft fan
1/ 2/ 2/ 2/ 3/
2 3/ 3
010100020021000( n a balanced draft system/ the forced draft fan is a) b) c) d) e)
larger than the induced draft fan the same si9e as the induced draft fan smaller than the induced draft fan designed to handle hot combustion gases subected to the products of combustion and high temperatures
010100020021000A n a forced draft system/ the furnace pressure is a) b) c) d) e)
above atmospheric pressure below atmospheric pressure at atmospheric pressure measured in psi not a factor
010100020021000, With an a&ial flow fan the air flow a) b) c) d) e)
is at right angles to the windbo& is at right angles to the shaft does not come in contact with the driving motor is the most efficient is parallel to the shaft
010100020021000A A boiler with only an induced draft fan a)
will have a negative furnace pressure
272
b) c) d) e)
does need an airtight furnace needs a very long stac will have a positive furnace pressure cannot maintain a stable fire
010100020021000, oiler combustion is regulated by a) b) c) d) e)
varying the controlling varying the controlling controlling
speed of an D fan or regulating the fuel flow speed of an D fan or regulating the air flow the air and fuel flow
010100020021000A 7he simplest way of measuring draft is with a) b) c) d) e)
an inclined manometer a ourdon tube device a fle&ible diaphragm device a hydrometer a bellows measuring device
010100020021000D 7he most efficient operation of a fan occurs when a) b) c) d) e)
draft draft draft speed speed
is is is is is
balanced D only D only ust enough to meet the demand at ma&imum
010100020021000A When the least amount of energy is desired to drive a fan with variable output control/ the type of control used would most liely be a) b) c) d) e)
variable speed coupling inlet damper control outlet damper control register control variable speed driver
010100020021000, nlet damper control on a fan a) b) c) d) e)
is less complicated than an outlet damper control re%uires more power to drive the fan when the vanes are closed can only be used when the fan is driven by a steam turbine is used on forced draft fans only re%uires less power to drive the fan at reduced loads
010100020021000A !roper draft is important to the plant operator because it a)
produces efficient combustion
273
b) c) d) e)
delivers the products of combustion to a high altitude reduces the volume of ash and slag prevents to&ic gases from leaing out of the system satisfies the codes
010100020021000 With a fan outlet damper control a) b) c) d) e)
the fan air pressure decreases with a decrease in air flow the fan air pressure increases with a decrease in air flow it is placed in the suction side of fan fan output is difficult to control flue gas velocity will rise
010100020021000( When an air heater is used in a boiler a) b) c) d) e)
the forced draft fan supplies hot gases to the heater the induced draft fan supplies combustion air to the air heater it increases the efficiency of the boiler the boiler usually has only a forced draft fan a balanced draft system cannot be incorporated
010100020021000D Draft measuring instruments can be used to measure1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 3/ 1/ 1/ 3/
wind bo& pressure steam pressure air heater flue gas pressure furnace pressure feedwater pressure 2/ / 2/ 3/ /
3 # 3/ #
010100020021000, When a diaphragm draft gauge is used to measure furnace draft a) b) c) d) e)
furnace draft connections are on both sides of the diaphragm it can only be used on a balanced draft system it can only be used on a forced draft system it can only be used for positive pressures the furnace draft connection is on one side of the diaphragm
010100020021000( Ade%uate openings for combustion air must be provided in enclosed boiler rooms$ 7hese openings a)
may include doors and windows
274
b) c) d) e)
should be located at the top of the room near the ceiling should be located at the bottom of the room near the floor are a standard si9e for all boilers are only for high pressure boilers
010100020021000A nclined .>. tubes may be used to measure-
a) b) c) d) e)
1$ 2$ 3$ $
fan fan air air
1/ 3/ 1/ 2/
2/ 3 3/
discharge pressure suction pressure heater flue gas pressure heater flue gas temperature
010100020021000 f a .>. tube is connected to the discharge of a forced draft fan the a) b) c) d) e)
connection to the fan will have a higher li%uid level than the open end open end will have a higher li%uid level than the connection to the fan li%uid level will be the same in both sides of the .>. tube li%uid will be drawn into the forced draft stream li%uid will e&pand
010100020021000D 7he inclined tube manometer operates a) b) c) d) e)
on so so on by
a different principle than the .>. tube manometer that only positive pressure can be measured that only a vacuum can be measured the same principle as a .>. tube manometer displacing a compressed gas
Introduction to Boiler (om)ustion 010100020021000D 7he balanced e%uation for the complete combustion of hydrogen is a)
= 2
H < E = < H heat 2
b)
2= H <
c)
=
E = < H heat 2 2
H 2<
E 2= < H heat
275
2 d)
2
2=
H < 2
e)
2=
2
2 E 2= < 2
H 2< 2
2
H
heat
E 2= < H heat 2
010100020021000, 7he balanced e%uation for the incomplete combustion of carbon is a)
( H <
E (< H heat 2
b)
2( H <
E (< H heat 2
c)
( H 2<
E 2(< H heat 2
d)
2( H 2<
E (< H heat 2
e)
2( H <
E 2(< H heat 2
010100020021000D 7he purpose of combustion controls is to1$ 2$ 3$ $ #$
a) b) c) d) e)
1/ 2/ 3/ 1/ 2/
control fuel flow and air flow into the furnace maintain the proper ratio of air to flue gas maintain the proper ratio of air to fuel maintain the correct furnace pressure in a balanced system maintain a negative pressure in the furnace when using a force draft fan 2/ 3/ / 3/ /
3 # #
010100020021000( 7he combustion e%uation ( H <2 E a) b) c) d) e)
(< (< H heat (<2 H heat 2 (<2 2( H 2<
010100020021000D 7he combustion e%uation 2 =2 H <2 E a)
=2< H heat
276
b) c) d) e)
=2< 2 =2< 2 =2< H heat 2= H <2
010100020021000A 7he combustion e%uation 5 H <2 E a) b) c) d) e)
5<2 H heat 2 5<2 H heat 5<2 5<2 H 5 25 H <
010100020021000 Which of the following supports combustion? a) b) c) d) e)
smoe o&ygen nitrogen hydrogen carbon dio&ide
010100020021000( Which of the following are necessary to complete combustion of a fuel1$ 2$ 3$ $ #$ '$ a) b) c) d) e)
1/ 2/ 1/ 1/ 3/
enough air must be supplied the temperature of the furnace must be high enough there must be enough water in the boiler enough time must be allowed for the fuel to burn the safety valve must be properly set the air and fuel must be thoroughly mi&ed together 3/ 3/ 2/ 2/ #/
/ / / 3/ '
' # '
010100020021000 Which element in the air will combine with the combustible elements of the fuel? a) b) c) d) e)
nitrogen o&ygen hydrogen carbon dio&ide carbon mono&ide
010100020021000D 7he amount of air re%uired to supply ust enough o&ygen for complete combustion is called the a) b) c)
e&act air perfect air primary air
277
d) e)
theoretical air secondary air
010100020021000 (ombustion air openings are re%uired by code and combustion air can be said to be a) b) c) d) e)
all air which contacts the raw fuel before the burner all air which contributes to the completion of combustion e&cess air all air which enters the boiler furnace/ including high e&cess air atomi9ing air
010100020021000, 7he amount of e&cess air re%uired for combustion is determined by the a) b) c) d) e)
ambient temperature of the outside air air supply pressure si9e of the boiler load on the boiler composition and condition of the fuel
010100020021000( nsufficient air for combustion will result in1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 3/ 1/ 2/ 1/
carbon in flue gases high o&ygen reading in flue gases low o&ygen reading in flue gases high (< in flue gases higher than normal flue gas temperature 2/ / 3/ 3/ 3/
3 # #
010100020021000, 7he appro&imate amount of e&cess o&ygen for gaseous fuel is a) b) c) d) e)
10R *R #R 1#R 2R
010100020021000 7he appro&imate amount of e&cess air for fuel oil is a) b) c) d) e)
20R 1#R 10R #R 2R
278
010100020021000A n winter/ the white smoe coming from the stac is a) b) c) d) e)
wet steam from combustion of the hydrogen in the fuel carbon dio&ide sulphur dio&ide carbon mono&ide from incomplete combustion of the carbon in the fuel unburned hydrogen
010100020021000A lac smoe can be caused by a) b) c) d) e)
insufficient combustion air too high a boiler pressure too much nitrogen in the air too much combustion air high temperature combustion air
010100020021000, (arbon mono&ide is both e&plosive and a) b) c) d) e)
inert e&pensive non6compressible grey in colour to&ic
010100020021000D 7he refining process for fuel oils involves separating the crude oil into end products which have distinguishing characteristics such as specific gravity/ viscosity/ and a) b) c) d) e)
colour odour heating value boiling point solids content
010100020021000( A maor disadvantage of oil over coal is a) b) c) d) e)
the oil does not burn as clean oil is more difficult to control oil is more e&pensive and less abundant coal re%uires less storage space oil re%uires more handling labour
010100020021000A ,thane is a component of natural gas and constitutes a percent volume of a) b) c) d) e)
10 6 20R +0 6 @0R '0 6 *0R # 6 10R 30 6 0R
279
010100020021000, >sing preheated air with solid fuels a) b) c) d) e)
increases air pollution creates soot which is heavy and difficult to remove necessitates the use of better grades of fuel reduces the stac temperature starts combustion more %uicly
010100020021000D ,ngineers must understand the importance of combustion in order to1$ 2$ 3$ $ a) b) c) d) e)
1/ 1/ 2/ 1/ 2/
order the right grade of fuel burn the fuel completely produce smoeless fires minimi9e the danger of e&plosion 2 3 3 2/ 3/ 3/
010100020021000, (arbon which is not combined with hydrogen is referred to as a) b) c) d) e)
mono6carbon loose carbon separated carbon ununited carbon fi&ed carbon
010100020021000A 7o which of the following oil burners is the oil supplied under high pressure? a) b) c) d) e)
mechanical atomi9ing burner air atomi9ing burner rotary cup burner steam atomi9ing burner multi6spud burner
010100020021000( When using mechanical fuel oil atomi9ation a) b) c) d) e)
*0 !a steam pressure is re%uired at the burner 3# to 0 !a oil pressure is re%uired high pump pressure is re%uired steam pressure is re%uired to eep the bypass open dry saturated steam or superheated steam should be used
010100020021000 Which of the following are coal burning apparatus-
280
1$ 2$ 3$ $ a) b) c) d) e)
1/ 1/ 2/ 1/ 1/
underfeed crossfeed overfeed rotary cup 2/ 2/ 3/ 2/ 3/
3 3/
010100020021000D Which of the following types of burners are used for oil firing? 1$ 2$ 3$ $ a) b) c) d) e)
2/ 1/ 2/ 1/ 3/
air atomi9ing ring type rotary cup steam atomi9ing 2/ 3 3/ 3/
010100020021000D 7he air that carries the pulveri9ed coal to the burner is nown as a) b) c) d) e)
induction air secondary air e&cess air primary air transfer air
010100020021000, When oil burners are not in use/ they should be removed from the furnace/ or the heat may cause a) b) c) d) e)
evaporation of the fuel corrosion of the burner sei9ure of the sprayer plate speed reduction of the rotary cup a build up of carbon in the burner
010100020021000D A mechanical atomi9ing oil burner has oil pumped under high pressure through a a) b) c) d) e)
rotary cup ring burner multi6spud burner sprayer plate recirculation line
010100020021000(
281
n a steam atomi9ing oil burner/ the travels through the central portion of the burner$ a) b) c) d) e)
fire steam oil heat air
010100020021000 When lighting6up an oil fired boiler that employs steam atomi9ing oil burners/ the a) b) c) d) e)
fuel valve is opened before the steam atomi9ing valve steam atomi9ing valve is opened before the fuel valve burner must be purged first oil pressure should be appro&imately 200 !a greater than the steam pressure draft fans must be at #0R of full capacity
010100020021000, efore removing oil burners from the furnace the burner should be blown out with a) b) c) d) e)
solvent coal oil a high temperature combustible solvent nitrogen or carbon dio&ide steam or air
010100020021000A f not enough air is given to an oil fired flame a) b) c) d) e)
the flame will be a dar smoy flame the flame will have a bluish6purple colour a blue6grey smoe will issue from the stac the steam temperature will rise the flame will have a da99ling yellow colour
010100020021000A When a gas fired burner is burning fuel properly a) b) c) d) e)
it will have a blue flame with short yellow tips the furnace will pulsate there will be no turbulence it will have a long bright yellow flame the induced draft fan can be shut off
010100020021000( According to the A5J, (ode 5ection 5even/ purging of furnace should be three to five minutes or a) b) c) d) e)
2 air changes # air changes + air changes 1# minutes at one half the fan output 10 minutes if it is a balanced draft system
282
010100020021000D Bow fuel in oil burners produces unsafe conditions of burning$ a) b) c) d) e)
volume flow temperature pressure viscosity
010100020021000( !oor combustion due to improper amount of air will cause a) b) c) d) e)
hot furnace temperatures a collection of partly burned a collection of partly burned the circulation of flue gases a high carbon dio&ide content
air fuel which could e&plode to stop in the windbo&
010100020021000 Bow fuel oil pressure in an oil burner system a) b) c) d) e)
increases combustion efficiency creates unstable conditions in the furnace causes e&cessive turbulence in the furnace is usually not possible if the fuel oil tan is more than one6half full will give a high o&ygen reading at the stac outlet
010100020021000D 7hree types of mechanical stoers are the underfeed/ overfeed/ and a) b) c) d) e)
sprinler chain grate pulveri9er crossfeed vibragrate
010100020021000, 8elative to boiler combustion/ an e&hauster fan a) b) c) d) e)
is the same as an D fan e&tracts ashes from a hopper e&tracts solid particles from the flue gases e&hausts dust from the coal crushers e&tracts pulveri9ed coal from a pulveri9er
010100020021000 When removing a steam atomi9ing oil burner from service/ the proper se%uence is a) b) c) d)
stop stop stop stop
steam/ stop oil/ remove burner oil/ purge oil side/ stop steam/ remove burner steam/ purge steam side/ stop oil/ remove burner oil/ stop steam/ remove burner
283
e)
purge oil side/ stop steam/ remove burner
010100020021000D f/ during a flue gas analysis/ the e&cess air to a boiler furnace is increased a)
(<
should increase 2
b)
(< should increase
c)
<
should decrease 2
d)
(<
should decrease 2
e)
<
should remain the same 2
010100020021000( oiler stac temperature can rise if a) b) c) d) e)
e&cess air is reduced the waterside of boiler becomes cleaner the fireside of the boiler becomes fouled flue gas (< value rises fuel flow rate decreases
010100020021000( (<2 is the chemical symbol for a) b) c) d) e)
carbon carbon mono&ide carbon dio&ide hydrocarbon carbonic acid
010100020021000A ,fficient combustion is achieved by controlling the a) b) c) d) e)
fuel6air ratio steam6water ratio water6fuel ratio steam6fuel ratio air6flue gas ratio
Sa#et% and Relie# "al/es 010100020021000( 5afety valves .pop. open because the force of the steam a) b) c)
acts upon a blowdown ring acts upon a huddling chamber is suddenly increased due to a larger area
284
d) e)
increases due to the discharge ports decreases the force created by the spring
010100020021000, f a safety valve is too small then the boiler pressure will a) b) c) d) e)
rise #R above the ma&imum allowable woring pressure "JAW!) not rise more than 1#R above the JAW! remain at the JAW! rise to 'R above the JAW! rise more than 'R above the JAW!
010100020021000 oiler fittings a) b) c) d) e)
are not regulated by the A5J, (odes must be registered by the government re%uires only the manufacturer;s identity attached may be used at the discretion of power plant personnel are tested by a destructive test
010100020021000( t is necessary to clearly mar or identify valves and fittings so that a) b) c) d) e)
they can be properly stored in the warehouse the manufacturer;s reputation is nown strength and material can be applied for a particular use the operator nows how it wors a proper safety inventory can be maintained
010100020021000, An agency or code with which fittings must comply with is the a) b) c) d) e)
=ealth and 5afety code ittings and oiler !arts Act oiler 8epair code !lumbing Qas Act A5J, code
010100020021000 f a safety valve fails to open at its popping pressure/ you should a) b) c) d) e)
tap it gently try the lifting lever shut the boiler down raise the pressure reface the valve
010100020021000, 7he lip on a safety valve a) b) c) d)
allows it to close slowly is only re%uired if the steam is superheated supplies a drain lip for condensate to collect on maes the valve stronger
285
e)
allows it to .pop. open
010100020021000( What does the boiler inspector install to prevent tampering with a safety valve setting? a) b) c) d) e)
a a a a a
restraining order gag seal plug cover plate
010100020021000 What is the ma&imum heating surface for a boiler to have only one safety valve? a) b) c) d) e)
*# * 3' 2+ 1@
s%uare s%uare s%uare s%uare s%uare
metres metres metres metres metres
010100020021000A f a boiler has a ma&imum allowable woring pressure of 1000 !a/ what would be the ma&imum pressure allowed when the safety valve is open? a) b) c) d) e)
10'0 100 1'00 2000 2#00
!a !a !a !a !a
010100020021000D A stop valve is allowed between the safety valve and the boiler drum when a) b) c) d) e)
the stop valve is loced open there is more than one safety valve a rupture disc is placed between the stop valve and the safety valve no stop valves are allowed before or after the safety valve the stop valve is the %uic opening type
010100020021000( 7wo safety valves are re%uired on a high pressure steam boiler that has a heating surface larger than a) b) c) d) e)
12 0 * # 2*
s%uare s%uare s%uare s%uare s%uare
metres metres metres metres metres
010100020021000A f the boiler was fired up with the main steam stop valve closed/
286
the safety valves should ensure thata) b) c) d) e)
the pressure cannot e&ceed the ma&imum woring pressure by more than 'R the water glass will not burst with the pressure the fuel cut6off will operate the pressure is never more than the hydrostatic test pressure the pressure cannot e&ceed the ma&imum woring pressure by more than 3R
010100020021000 What is the minimum number of safety valves re%uired on a boiler having a heating surface of 2 s%uare metres? a) b) c) d) e)
none one two three four
010100020021000, ,ach boiler must have a safety valve/ preferably a) b) c) d) e)
placed welded fitted to the at eye fitted to the
in a pipe system leading from a boiler valve in a hori9ontal position to the top of the boiler securely to a shut6off valve directly connected top of the boiler level on the front surface of the boiler in a vertical position directly connected top of the boiler
010100020021000, 7he safety valves on a boiler meet code re%uirements and are set to a popping pressure of 13+0 !a$ What would be the ma&imum permissible pressure rise in the boiler/ if the boiler was fired at full capacity with the main steam stop valve closed? a) b) c) d) e)
2# !a 3*$# !a * !a *2$ !a +2$+ !a
010100020021000( 7he discharge pipe of a safety valve should be separately supported a) b) c) d) e)
because the safety valve is not capable of supporting the mass so that drainage of the discharge line can occur so that allowance for e&pansion prevents stress on the safety valve in order to prevent leaage at the oint so that the valve can be %uicly and easily removed
010100020021000A
287
(ast iron fittings for a boiler can be deemed to have upper limitations of a) b) c) d) e)
1/*20 !a and 232 degrees ( 1*/200 !a and 1/100 degrees ( 1/100 !a and 1*3 degrees ( +/000 pa and '*0 degrees ( 3/000 !a and 1#0 degrees (
010100020021000D 7he popping pressure of a safety valve a) b) c) d) e)
cannot be changed can only be increased by #R can only be decreased by #R can be increased or decreased by up to #R can be changed any amount
010100020021000D 7he blowdown on a safety valve is adusted by turning the a) b) c) d) e)
inspector;s seal valve disc adusting nut adusting ring valve seat
010100020021000, A blowdown ring on a safety valve is used to a) b) c) d) e)
adust the operating pressure of the valve set the opening pressure increase the effectiveness of the safety valve increase the life of the cone shaped lip adust the blowdown differential
010100020021000, A try lever safety valve test will a) b) c) d) e)
ensure the popping pressure is correct indicate that valve capacity is ade%uate ensure the closing pressure is correct tae appro&imately 2 seconds ensure the valve is free to operate
010100020021000 When performing a safety valve pop test one of the first things to do is a) b) c) d) e)
notify the boiler inspector verify the accuracy of the applicable steam pressure gage notify the chief engineer chec the blowdown of the safety valve chec the popping pressure
010100020021000A A safety relief valve is lie a safety valve e&cept it
288
a) b) c) d) e)
does not have a blowdown ring or bottom guides must have greater blowdown may have an isolation valve placed between it and the pressure vessel must discharge directly to the atmosphere is prone to leaage
010100020021000A 7emperature relief valves can open on a rise in temperature by the e&pansion of a wa&6filled rod or by the a) b) c) d) e)
melting of the alloy in a fusible plug melting of a fusible lin action of a bi6metal strip action of a ourdon tube action of a bellows
010100020021000( f the safety valve starts to lea steam a) b) c) d) e)
phone the inspector immediately report it to the insurance company pull the test lever and try to clear the seat face brea the seal/ and tighten down on the spring adust the blowdown of the safety valve
010100020021000 An operator should chec that a boiler safety valve will open at its set pressure by a) b) c) d) e)
sending for the inspector to bring his or her test gauge increasing the boiler pressure until the valve opens and noting the pressure on the pressure gauge when the valve opened putting a piece of pipe over the lifting lever and lifting the valve off its seat when the seat pressure is reached connecting the boiler to an air compressor during shut down and raising the pressure in the boiler until the set pressure is reached listening to the alarms of the set pressures
010100020021000 7esting the safety valve by means of the try lever method is considered good practice when carried out on a a) b) c) d) e)
weely basis monthly basis si& month basis yearly basis bi6weely basis
010100020021000 f/ during the testing of a safety valve/ the valve does not open/ you would first a)
continue to increase the steam pressure
289
b) c) d) e)
try to open the valve with the lifting lever force it open by striing it with a hammer tae the boiler out of service stop the boiler and notify the boiler branch
010100020021000A 7est levers on safety valves should not be used until the boiler pressure is at least or more of the safety valves normal popping pressure$ a) b) c) d) e)
*#R '0R #0R 0R 2#R
010100020021000( f a safety valve leas after a try lever test/ the operator should a) b) c) d) e)
plug the safety valve outlet reduce the boiler pressure operate the try lever several times to blow away foreign material fit a gag to the safety valve reduce boiler pressure and call the team leader
010100020021000 Do not open the safety valve with the test lever a) b) c) d) e)
if the valve is less than 2$# cm inlet diameter if the pressure is less than *#R woring pressure after @ p$m$ in populated areas if the valve is not vented to the roof if there are more than two safety valves on the boiler
&ater (olumns and 0age 0lasses 010100020021000, 7he following condition may be encountered in level measurement and indicationa) b) c) d) e)
solids or li%uids e&tremes of heat and cold pressure variations corrosive and e&plosive conditions all of the above
010100020021000 5eparately mounted gage glasses are used to provide a indication of level over a certain vertical distance on the vessel$ a)
point
290
b) c) d) e)
continuous diagonal ultrasonic indirect
010100020021000, 7he main operating element of a =opinson remote water level indicator is a a) b) c) d) e)
ourdon tube Bedou& bell float capsule large diaphragm
010100020021000, When a differential head meter is used to measure water level in a boiler steam drum/ the connection to the steam space a) b) c) d) e)
forms the variable leg of the meter is cross connected to the constant or reference leg of the meter is the low pressure side of the meter has a varying water level forms the constant or reference leg of the meter
010100020021000( Dirt traps are installed on an .gema. remote water6level indicator a) b) c) d) e)
because of the high amount of suspended solids collecting in the constant head to prevent mi&ing of the indicating li%uid with boiler water to prevent indicating li%uid contamination so that overfilling of the indicating section is prevented to prevent osmosis from occurring
010100020021000D A great advantage of an gema level indicator over a =opinson unit is a) b) c) d) e)
it has the highest degree of accuracy it is the least costly to purchase its ability to show steam and water as different colours there are no moving parts it re%uires no electricity
010100020021000D A gage glass which shows a clear li%uid as being very dar is the a) b) c) d)
=opinson indicator gema indicator tubular gage glass refle& gage glass
291
e)
flat gage glass
010100020021000, n a high pressure hori9ontal firetube steam boiler/ the bottom of the gauge glass should be above the lowest permissible water level in the boiler$ a) b) c) d) e)
1 m #0 cm * cm 2#$ mm #1 mm
010100020021000( f a gage glass breas/ the operator shall immediately a) b) c) d) e)
shut the add more shut off lift the shut the
boiler down water to the boiler the steam valve and water valve on the gage safety valve boiler down
010100020021000 7ry cocs are a) b) c) d) e)
used to blowdown the gage glass for checing water level while the gage glass is out of service for draining the gage glass operated simultaneously on the water column drain line
010100020021000( =ow many try cocs are installed on the water column of a boiler/ with over @$3 s%uare metres heating surface? a) b) c) d) e)
1 2 3 '
010100020021000, When a firetube boiler is filled for the first time/ it should be confirmed that when the water first appears in the gage glass/ that there is mm of water over the top of the tubes$ a) b) c) d) e)
2#$ mm #0$+ mm + mm 101$' mm *' mm
010100020021000, 5afety shutoff devices are found
292
a) b) c) d) e)
on water supply systems feeding a boiler on all gage glasses which are under continuous supervision only on vessels containing to&ic li%uid on the constant or .reference. lines to remote indicators on gage glasses not under constant supervision
010100020021000A 7ubular gage glasses a) b) c) d) e)
are suitable for pressures up to 2/+00 !a do not corrode due to high alalinity indicate the level most accurately can be of any length are not weaened by misalignment
010100020021000D Qage glasses show a water level which is a) b) c) d) e)
slightly less than the level if the vessel is at a lower temperature the same if all li%uids have the same temperature slightly higher than boiler level when the pressure is high slightly lower when the glass water density is higher the actual vessel level regardless of pressure/ temperature or density differences
010100020021000A When the water connection between boiler and gage glass becomes plugged/ the water level in the glass will show a level after a while/ that is a) b) c) d) e)
higher than the level in the boiler lower than the level in the boiler the same as the level in the boiler fully filled lower than the bottom of the sight glass
Drum Internals 010100020021000 7he component of a boiler which allows a space for the introduction of chemicals is the a) b) c) d) e)
mud drum steam drum inection tan internal feed pipe deaerator
010100020021000A A boiler steam drum will
293
a) b) c) d) e)
allow load increases to be accomplished more %uicly always be the highest component of a boiler not distribute feedwater to cold sections of the boiler have no bearing or effect on water circulation contain a steam space which will be at higher pressure than the water space
010100020021000( At lower pressures/ steam a) b) c) d) e)
has higher densities is more difficult to separate from the water readily rises and separates from the water cannot be separated from water with mechanical devices re%uires large volume spaces in order to separate
010100020021000( 5team separation in a modern boiler usually occurs in a) b) c) d) e)
1 2 3 #
step steps steps steps steps
010100020021000A (yclone separators are used to a) b) c) d) e)
separate water droplets from the steam accelerate the steam leaving the boiler heat the steam coming out of the drum separate impurities from the water separate water from the steam drum
010100020021000 8elative to steam drum internals/ a boiler water test is conducted to a) b) c) d) e)
ensure adust ensure inform ensure
scrubbers have not corroded away or set the continuous blowdown valve "(D) the water is not attacing the separators us when maintenance is re%uired on drum e%uipment chemicals are entering the boiler
010100020021000, 7he (D valve is usually a a) b) c) d) e)
gate valve with a metering device ball valve with a metering device stopchec valve with a metering device butterfly valve with a metering device needle valve with a metering device
010100020021000D A drum internal which acts to reduce thermal shoc and
294
turbulence is the a) b) c) d) e)
cyclone separator drip6collector baffle corrugated plate drier internal feed pipe chevron drier
010100020021000, 5ome smaller boilers have a pipe and baffle device in the steam drum which acts as a) b) c) d) e)
a separator a chemical inection device a scrubber a drip collector baffle an internal feed pipe
010100020021000, (hemicals are inected into the boiler to a) b) c) d) e)
prevent corrosion eep sludge dispersed prevent sludge prevent scale all the above
010100020021000D 7he chemical inection line is located a) b) c) d) e)
near the normal water level close to the (D line in the steam space near the internal feed pipe close to the riser tubes
Fluidi3ed Bed (om)ustion 010100020021000( 5tate the abbreviation used for fluidi9ed bed combustion$ a) b) c) d) e)
( ( ( (
010100020021000A 7he abbreviation QD stands for a) b) c) d)
flue gas desulphuri9ation fuel gauge diameter flow gas density fluid gas detector
295
e)
field gas drain
010100020021000, 5tate the abbreviation for a .fluid catalytic cracer.$ a) b) c) d) e)
(( ( (( (( ((
010100020021000( ((/ with regard to the refining industry means a) b) c) d) e)
ederal (ommunications (ommission resh condensate control luid catalytic cracer ederated consumer costs uel (ombustion (ode
010100020021000D A( stands for a) b) c) d) e)
Albertaederal boiler calculations Alberta foot board control after6fired boiler circuitry atmospheric fluidi9ed bed combustion automatically flooded boiler condenser
010100020021000D !( stands for a) b) c) d) e)
!rovincialederal boiler calculations !rovincial footboard control pre6fired boiler circuitry petroleum fired boiler control pressuri9ed fluidi9ed bed combustion
010100020021000D With the A(/ the combustion air pressure is typically 2# cm of water pressure at the D fan/1' cm at the base of the active bed/ and at the top of the combustion mass$ a) b) c) d) e)
at boiler pressure at flue gas e&it temperature negative pressure atmospheric pressure absolute pressure
010100020021000A With the A(/ the three pressure 9ones are typically as follows at the D fan/ the base of the active bed/ and at the top of the combustion mass respectively$
296
a) b) c) d) e)
2# 20 1# 30 0
cm cm cm cm cm
of of of of of
water water water water water
pressure/ pressure/ pressure/ pressure/ pressure/
1' 1 10 20 2#
cm cm cm cm cm
and and and and and
atmospheric atmospheric below atmospheric above atmospheric above atmospheric
010100020021000( n (/ the fuel content by mass of the turbulent inert material is usually less than a) b) c) d) e)
# 3 2 1
percent percent percent percent percent
010100020021000A A( units permit the reduction of furnace temperatures from a) b) c) d) e)
1'00 1+00 1*00 1##0 13#0
to to to to to
+#0 '#0 *#0 @00 #00
degrees degrees degrees degrees degrees
(elsius (elsius (elsius (elsius (elsius
010100020021000( 8educing furnace bed temperatures by use of A( units reduces as well a) b) c) d) e)
production of hot flue gases efficiency of operation production of :<&;s the turbulence of the furnace interior the steam generating capacity
010100020021000 (rushed coal mi&ed with pulveri9ed limestone in an A( unit does what? a) b) c) d) e)
lower the combustion bed temperature act as a desulphuring agent create the perfect fuelK hydrogen pressuri9es the fluidi9ed bed produces no gaseous effluent
010100020021000D What is the percentage of 5<& reduction which can be gained by adding an e&cess amount of limestone to the bed of an A( unit? a) b) c) d) e)
0 #0 *0 +0 @0
6 6 6 6 6
#0 '# +0 @0 @#
percent percent percent percent percent
297
010100020021000 About the only thing limiting the ind of fuel burned in a ( is a) b) c) d) e)
how the the the the
well the material has been mi&ed prior to burning heating value of the material being burned amount of slag the fuel will produce si9e of the plant using the fuel si9e of the burners
010100020021000( 7he gradual loss of the fluidi9ed bed in an ( furnace is called a) b) c) d) e)
attrition fluidation carryover reduction starving
010100020021000, 7he ash content of a fuel which can be burned in a ( unit and which will not burn successfully in any other type of furnace is a) b) c) d) e)
10 30 ## '0 *0
percent percent percent percent percent
010100020021000A Barge .cliners. are not produced in ( furnaces because of a) b) c) d) e)
lower furnace temperatures the fluidi9ed bed created by air passage through the furnace the ind of fuel used the introduction of limestone into the combustion mi&ture not burning gaseous fuels
010100020021000 7he reason ( plants can be built smaller than plants currently in vogue is because of a) b) c) d) e)
higher steam temperatures and pressures higher heat transfer rates and the absence of wet e&haust gas scrubbing e%uipment lower maintenance costs and the ability to burn a wide variety of fuels less slag production and the elimination of soot6 blowing e%uipment the burners being smaller
010100020021000D 5team generators of the ( type can be reduced in si9e by
298
up to a) b) c) d) e)
3# 1# # 2# 10
percent percent percent percent percent
010100020021000 ecause of the one %uarter reduction in si9e of ( plants a significant saving is gained in a) b) c) d) e)
fuel and waste costs material and construction costs heat and light costs .(liner. and soot blowing costs fuel storage costs
010100020021000, eedthrough tubes are located? a) b) c) d) e)
in in in in in
the the the the the
furnace furnace furnace corners furnace
windbo& ceiling walls of the furnace bottom
010100020021000( An especially important point in the operation of fluidi9ed beds composed of fine particles is a) b) c) d) e)
feedwater temperature solids inection rate bubble si9e waste solids handling the colour of the limestone
010100020021000,
the formation of .cliners. a restricted type of fuel used the need for the installation of soot blowers the generation of wet steam steam temperature limited over the period of heat supply
010100020021000A (arryover in ( units results in a) b) c) d) e)
lower efficiency and higher costing dust collectors lower furnace temperatures and the need for higher furnace ceilings lower tube location and higher combustion rates lower steam pressures and higher water temperatures overheating of the breeching
299
010100020021000
add fuel gas to the combustion process add more e&pensive control e%uipment add hot steam to the fluidi9ed bed add an electrical charge to the pulveri9ed limestone close all the air dampers
010100020021000( 7o what temperature must the inert bed material of a ( unit be heated before the introduction of coal to the furnace for burning? a) b) c) d) e)
about about about about about
3#0 #00 '00 *#0 @00
degrees degrees degrees degrees degrees
(elsius (elsius (elsius (elsius (elsius
010100020021000D What is the ignition temperature of coal? a) b) c) d) e)
300 #0 ##0 '00 @00
degrees degrees degrees degrees degrees
(elsius (elsius (elsius (elsius (elsius
010100020021000A 7he typical time needed to heat a ( unit bed to fuel ignition temperature prior to the introduction of coal is a) b) c) d) e)
one hour one half hour two hours three hours si& hours
010100020021000, Due to various differences in the operation of ( plants the following is re%uireda) b) c) d) e)
a considerably larger floor space better %ualified operators a taller furnace stac using new technology in the construction of boiler tubes a considerably different control system
010100020021000 n order to get ma&imum heat transfer in a ( furnace it is re%uired to a)
increase the fuel consumption per hour
300
b) c) d) e)
ensure that the boiler tubes are covered by the e&panded bed build larger (;s add fuel gas to the regular fuel being burned line the floor and ceiling of the furnace with steel plates
Soot)lowers 010100020021000 n addition to reducing heat transfer/ soot and ash on fireside tubes also a) b) c) d) e)
lessens the chance of furnace e&plosions increases draft fan power results in the formation of (< in the flue gases raises superheater temperatures results in smoe emissions from the stac
010100020021000, 8elative to igure 1/ in the module the radiant 9one is a) b) c) d) e)
downstream of the economi9er downstream of the air preheater between the primary superheater and economi9er between the reheater and primary superheater upstream of the reheater
010100020021000D 7he steam used for sootblowing is usually a) b) c) d) e)
greater than boiler drum pressure wet unsaturated steam the same as boiler drum pressure superheated at the sootblower no99le mi&ed with compressed air
010100020021000D A furnace wall sootblower se%uence of operation is a) b) c) d) e)
rotate F blow/ e&tend/ retract e&tend/ blow/ retract/ rotate rotate/ e&tend/ blow/ retract e&tend/ rotate F blow/ retract retract/ blow/ rotate/ e&tend
010100020021000( A long retractable sootblower will a) b) c) d) e)
have no99les throughout its full length be used to clean furnace walls blow during e&tension and retraction as it rotates not blow until fully e&tended re%uire less e&terior room than a furnace wall unit
301
010100020021000 During a sootblowing operation the boiler firing rate should be at least a) b) c) d) e)
1#R 30R 20R +0R *0R
010100020021000( While a steam sootblower is in operation it is cooled by a) b) c) d) e)
air flue gases steam water none of the above
010100020021000 A stationary sootblower a) b) c) d) e)
has two opposing no99les at the end of its lance has a row of no99les throughout the lance length does not rotate while blowing is cooled by air while not in use is cooled by water while not in use
010100020021000( 5hot cleaning pellets have a diameter of appro&imately a) b) c) d) e)
2 cm ' cm 0$' cm 0$' mm 2 mm
010100020021000A 5hot cleaning pellets are transported to the top of the boiler a) b) c) d) e)
by using an air stream manually in a steam inection system by a hydraulic hoisting system and are not recycled
010100020021000( 5oot and ash are undesirable on tube surfaces because they a) b) c) d) e)
increase heat transfer through the heating surfaces cause overheating of the tubes reduce boiler efficiency reduce draft for power re%uirements reduce the heating surface of the boiler
302
(ontinuous and Intermittent Blowdown 010100020021000 7he type of blowdown system used on a boiler is usually a function of a) b) c) d) e)
the type of internal water treatment used the type of e&ternal water treatment used the temperature at which the boiler operates how long the boiler operates each day water supply temperatures
010100020021000D An e&ternal treatment method which minimi9es blowdown is a) b) c) d) e)
sodium 9eolite softening deaeration coagulators deminerali9ation sludge conditioning
010100020021000A lowdown guidelines can be found in a) b) c) d) e)
A5J, 5ection G A5J, 5ection G (5A #1 (5A #2 applicable provincial Acts and 8egulations
010100020021000( A steam boiler is blown down in order to a) b) c) d) e)
clean the soot and carbon out of the firebo& and tubes lower the operating water level in the boiler discharge sediment and scale forming matter from the boiler test the rated relieving capacity of the safety valves fitted to the boiler locate the steam level
010100020021000 7he continuous boiler water blowdown is used a) b) c) d) e)
in in to to to
place of the main blowdown addition to the main blowdown adust the drum water level introduce chemicals to the boiler control the bottom blowdown
010100020021000 f dissolved solids are not removed from boiler water the result may be a) b)
overheating of convection 9one tubes foaming and carry6over
303
c) d) e)
overheating of radiant 9one tubes steam which will be more saturated with latent heat purer steam leaving the steam drum
010100020021000, oiler water having the highest 7otal Dissolved 5olids "7D5) content is found a) b) c) d) e)
at the bottom of the mud drum at the bottom of the steam drum at the top of the steam drum in the waterwall tubes ust below the waterline of the steam drum
010100020021000D A .rule of thumb. rate of continuous blowdown is appro&imately a) b) c) d) e)
10R of steaming rate #R of steaming rate 1#R of steaming rate 1R of steaming rate 3R of steaming rate
010100020021000A According to the (5A 6#1 code a blow6off tan is necessary to a) b) c) d) e)
prevent high temperature and pressure in the sewer prevent blowing off too %uicly remove sludge from blow6off water prevent overflowing the sewer reduce the boiler water velocity
010100020021000, According to the Alberta oilers Act 8egulations/ what fitting is needed between the blow6off valve and the boiler if two boilers use the same blow6off tan? a) b) c) d) e)
a non6return valve a steam trap a steam separator an e&pansion oint a chec valve
010100020021000( A blow off tan is used to a) b) c) d) e)
lower the dissolved solids in the water lower the p= of the water prevent damage to the sewer eep the condensate hot to prevent sludge from entering the boiler
010100020021000 oiler water having the greatest concentration of suspended solids is found
304
a) b) c) d) e)
ust below the steam drum water line in the bottom of the mud drum at the bottom of the steam drum in waterwall riser tubes in convection 9one downcomer tubes
010100020021000( A blowdown tan will a) b) c) d) e)
have to be cleaned monthly to remove the collected sludge not be classed as a pressure vessel since it is vented lower the temperature and pressure of the incoming boiler water not have to have any specific capacity or volume be allowed to accommodate only one boiler
010100020021000D Water leaving a blowdown tan and entering a sewer must not e&ceed a) b) c) d) e)
# #0 *# '# +0
degrees degrees degrees degrees degrees
( ( ( ( (
010100020021000A When two seatless valves are used for intermittent blowdown/ the operation se%uence is a) b) c) d) e)
open open open open open
the the the the the
downstream valve first and close it last upstream valve first and close it last downstream valve first and close it first upstream valve first and close it first upstream valve last and close it last
010100020021000( 7he preferred arrangement of valves on a boiler blow6off line is a) b) c) d) e)
two %uic6opening valves a slow6opening valve closest to the boiler followed by a %uic6opening a %uic6opening valve closest to the boiler followed by a slow6opening one valve only "t must be a globe valve$) a %uic opening valve and a lift chec valve
010100020021000A A boiler blow down system is e%uipped with slow and fast opening valves$ 7he %uic opening valve is placed a) b) c) d) e)
closest to the boiler and opened first furthest from the boiler and opened first closest to the boiler and opened last furthest from the boiler and opened last on the blow off tan
305
010100020021000, 7he blow down system has two valvesK they should be opened and closed in the correct se%uence to a) b) c) d) e)
carry out the blow down accurately prevent e&cessive blow down prevent a high level in the steam drum prevent the boiler losing level protect the valve closest to the boiler
010100020021000, 7he %uic opening blow6off valve should be placed a) b) c) d) e)
at the second blowdown tan second from the boiler furthest from the boiler between the boiler and the chec valve nearest to the boiler
Boiler Preparation, Start*up, and Shutdown 010100020021000( efore starting up any boiler it is necessary that a) b) c) d) e)
it be properly warmed up it be properly purged it have a valid inspection certificate the water supply system be in service the waterside is boiled out
010100020021000D :ew refractory must be thoroughly and properly cured with a light fire because a) b) c) d) e)
of its high rate of differential e&pansion it may burn if not cured it may corrode if not cured it contains moisture which can cause it to fracture if not cured of the length of time it taes it to heat up
010100020021000A 7he e&ternal inspection of a boiler a) b) c) d) e)
may include maing sure the valves are in good operating condition may include maing sure the furnace refractory is in order may include maing sure the tubes are free of scale must be done after the boiler has been drained may include maing sure the e&terior of the tubes are in good condition
010100020021000
306
A boiler inspection a) b) c) d) e)
must be must be must be is done must be
done done done with done
after every shut down of the boiler when the boiler inspector re%uests it every two years the owner;s permission only before the boiler is ready for start6up
010100020021000( 7he first duty of the operator coming on shift is to a) b) c) d) e)
chec the safety valve settings fill out the log boo chec that water column and gage glass connections are clear tal to his supervisor chec the chemical tan levels
010100020021000, f a new boiler is not properly boiled out/ it may result in a) b) c) d) e)
tubes rupturing a furnace e&plosion nuisance shutdowns an unwanted high rate of water circulation a foaming condition occurring
010100020021000D efore lighting up a boiler you should1) 2) 3) ) a) b) c) d) e)
1/ 2/ 1/ 1/ 2/
purge the furnace open the blow down valve chec the fuel supply fill the boiler with water 2/ 3/ 2/ 3/ 3
3/
010100020021000( oiler boiling out procedure should be done a) b) c) d) e)
at operating pressure before the dry out procedure at one6half the operating pressure once a year ust before the annual inspection
010100020021000( oiler dry6out means a) b) c) d)
drying out the top and bottom drum igniting the dryers in the top drum drying out the new refractory empty the boiler out
307
e)
drying out the entire boiler before start6up
010100020021000A
the vent valve is a normally open valve at least one of the main6line valves will always be open the main6line valves will open before the prepurge stage the main6line and vent valves all open together the main6line valves are manually operated
010100020021000 5uperheater vents are usually opened before firing a boiler to a) b) c) d) e)
allow the superheater to warm up %uicer let the first steam produced act as a superheater coolant ensure drum level does not drop verify the operation of the steam flow transmitter enhance boiler water circulation
010100020021000D A boiler furnace pre6purge a) b) c) d) e)
is the shortest step in the start6up se%uence can tae place normally even if there is a low water condition must be done manually on a fully automatic boiler must last a specific amount of time will tae place at the end of a boiler shutdown
010100020021000, When igniting a gas or oil fired boiler you should ignite from1$ 2$ 3$ $ a) b) c) d) e)
1/ 1/ 2/ 1/ 3/
another burner already in service the hot refractory a hand torch an electrical igniter 2 3 3 2/
010100020021000( A boiler warm6up should a) b) c) d) e)
be done as %uicly as possible be done with low water so that metal heats up faster be done slowly to minimi9e any differential e&pansion be completed with a high firing rate not involve any human intervention
010100020021000 While a boiler is warming up it is good practice to
308
a) b) c) d) e)
leave all drain valves closed chec the low water fuel cut6off device for proper operation test the safety valve before any pressure develops not interfere in any way with the combustion process go through a sootblowing operation se%uence
010100020021000( When raising pressure in a firetube boiler you should1$ 2$ 3$ $ a) b) c) d) e)
2/ 1/ 1/ 1/ 2/
raise raise chec chec 3/ 2/ 3/ 2/
steam slowly steam as rapidly as possible the furnace fre%uently the system for leas
3/ 3
010100020021000D 7wo boilers are feeding into the same steam header and each pressure gage shows a pressure of 3#0 !a$ 7he steam pressure gage on the header will indicate a) b) c) d) e)
slightly *00 !a slightly slightly slightly
more than 3#0 !a more than *00 !a less than 3#0 !a less than *00 !a
010100020021000( efore removing a boiler from service for maintenance purposes it is beneficial to a) b) c) d) e)
inform the (hief nspector do as little as possible with the waterside of the unit use sootblowers and clean the fireside well force cool the unit with post6purge air drain the unit before the water cools to ambient temperature
010100020021000D
as soon as the post6purge when all temperatures are any time after the :8G is ust before the unit goes at no time
is completed at ambient value closed into a vacuum
010100020021000A When cooling down a steam boiler that has been taen out of service/ a vent valve on the steam drum should be opened to
309
a) b) c) d) e)
prevent a vacuum from forming in the boiler release the air from the boiler purge the shell of impure gases let the operator now when the pressure has reached 9ero prevent pressure build6up in the boiler
Routine and Emergenc% Boiler Operation 010100020021000A A wide and rapid fluctuating water level in the boiler gage glass may be the result of a) b) c) d) e)
high 7D5 a vapour bound boiler feed pump low alalinity low p= boiler firing rate being too low
010100020021000 A natural gas fired power boiler flame should be a) b) c) d) e)
very slow/ long/ and mostly yellow or orange fairly rapid/ mostly blue/ and some orange very rapid/ short/ very audible/ and have no orange very white and intense/ re%uiring coloured glass for viewing bright enough to re%uire coloured glass for viewing
010100020021000D When performing a sootblowing operation it is important to maintain flame stability and a) b) c) d) e)
ensure drum water level remains constant firing rate not be allowed to increase stac discharge not become visible dislodged soot and ash leave the boiler with the flue gases the local environmental agency be notified prior to blowing
010100020021000( While blowing down a boiler which is in operation/ you should a) b) c) d) e)
chec the rest of the boiler room e%uipment fill in the log boo for your shift concentrate only on blowing down the boiler clean up the area close to the boiler add more water to the boiler to replace the blow down water
010100020021000( n the event of a low water condition in a boiler the engineer in charge should
310
a) b) c) d) e)
shut down the burner immediately continue firing and restore the level shut down the burner/ let the unit cool/ then inspect it shut down the burner/ let the unit cool/ then restore level notify the (hief ,ngineer before responding to the condition
010100020021000, A high water level in a boiler a) b) c) d) e)
will not be made worse by dropping boiler pressure or allowing .swell. to occur should cause a high water level shutdown switch to stop the fire is usually the result of a boiler feedpump malfunction will necessitate an immediate shutdown/ cool down/ and inspection is usually the result of a level control malfunction
010100020021000 n the event of a flame failure/ an automatic boiler will close the fuel valve and usually a) b) c) d) e)
begin a re6start cycle immediately perform a post6purge reset itself simply restart itself with no human intervention stop the boiler feedpump
010100020021000A When you first notice that the water level in the boiler gauge glass can no longer be seen/ it is best first to a) b) c) d) e)
ensure that the boiler is not over filled start the stand6by feed pump or inector shut off the boiler fuel supply close the main steam valve ensure the glass is not leaing
010100020021000 f the safety valve on a boiler pops and the only pressure gauge indicates well below pop pressure/ you would a) b) c) d) e)
notify the oiler nspector reduce boiler pressure and get the gauge checed shut down to fi& the safety valve increase spring pressure on safety valve shut down the boiler and replace the safety valve and gauge glass
010100020021000, f the boiler safety valves open during boiler operation/ you should a) b)
close the non6return valve on the boiler drum shut the boiler down immediately
311
c) d) e)
increase the forced draft flow to cool the boiler open the blowdown valves reduce the fuel and air flow to the boiler
010100020021000 What causes the level in the gage glass to be higher than in the drum? a) b) c) d) e)
column drain valve leaing steam valve on the gage glass closed swell in boiler steam drum starting up of the stand6by feedwater pump guage glass steam and water valves are both open
010100020021000( What causes the level in the gauge glass to be lower than the water level in the boiler? a) b) c) d) e)
steam valve on the gauge glass closed shrinage in the boiler steam drum drain valve on the gauge glass leaing top try coc open the steam pressure is e&cessively high
010100020021000D A firetube boiler furnace e&plosion a) b) c) d) e)
can be the result of too much scale on boiler tubes is more disastrous than a pressure or waterside e&plosion may be the result of oil in the water causing a foaming condition may result from a flame scanner not woring properly could be caused by poor water circulation
010100020021000( A boiler pressure or waterside e&plosion a) b) c) d) e)
could be the result of water in the fuel oil could be the result of inade%uate ignition may be caused by a low water condition could result from improper sootblowing procedures could be the result of broen refractory
010100020021000A A reason for many boiler accidents may be due to a) b) c) d) e)
inade%uate training of operating personnel log boos being ept up to date and ade%uate the regular testing and checing of control devices not asing the insurance companies to inspect boilers more often safety valves being oversi9ed
010100020021000 7he best method of ensuring ade%uate attention is being given to the boiler and its controlling and safety devices is to
312
a) b) c) d) e)
schedule regular testing and checing procedures maintain a log boo showing testing results and by whom they were done re%uest staff to perform checs weely have faith in the personnel always maintain good oral communication lines about tests and checs
010100020021000A Jost furnace e&plosions occur a) b) c) d) e)
during the during the during the during the when steam
lighting up of a boiler burner shutting down of a burner purge period of lighting a boiler furnace period of increasing the load pressure is e&cessive
010100020021000, When additional gas burners are re%uired/ they may be ignited a) b) c) d) e)
from an adacent burner by the flame detector by means of a transformer relay by a flame rod by means of a torch
010100020021000 7he purging process for a furnace should be done a) b) c) d) e)
before each burner is lit with the fuel valve closed with the fuel valve in the open position before the second burner is lit with the pilot light on
010100020021000D
e&cessive fuel temperature fuel pressure being too high the fuel being too volatile water in the fuel the hydrogen content is too low
010100020021000, Attempting to light one burner from another burner during the operation/ can a) b) c) d) e)
cause the lit burner to be blown out cause the fuel oil in the supply tan to surge put the ignitor out not cause the furnace to e&plode cause a furnace e&plosion
010100020021000 f the main burner fails/ this could cause
313
a) b) c) d) e)
the steam atomi9ing pressure to increase admission of unburned fuel to the furnace which may e&plode the boiler efficiency to increase the fuel valve to stay open the pilot light to go out
010100020021000D !oor combustion due to the insufficient amount of may cause a furnace e&plosion$ a) b) c) d) e)
gas fuel heat air hydrocarbons
010100020021000, ailure to the furnace thoroughly before light6up can cause a furnace e&plosion$ a) b) c) d) e)
heat drain prime cool purge
010100020021000A Attempting to light a burner may cause a furnace e&plosion$ a) b) c) d) e)
from hot refractory without preheating the fuel without first cooling the fuel without a pilot light by pre6purging the furnace
010100020021000( !ressure e&plosions occur when a pressure part of the boiler such as the shell/ furnace/ or firetube bursts due to too high a steam pressure or a structural weaening of the metal$ 7his weaening may be caused by 1$ 2$ 3$ $ #$ a) b) c) d) e)
1/ 2/ 1/ 1/ 1/
corrosion thermal stress overheating scale and sludge build6up insufficient combustion air 3/ 3/ 2/ 2/ 2/
/ / 3/ / 3/
# # # #
314
E1ternal Feedwater reatment 010100020021000( oiler water is treated in order to prevent a) b) c) d) e)
sludge/ mud/ pitting/ corrosion foaming/ corrosion/ carryover/ sludge sludge/ corrosion/ scale/ carryover scale/ sludge/ mud/ pitting foaming/ carryover/ pitting/ corrosion
010100020021000D Dissolved solids in raw water a) b) c) d) e)
cause pitting of boiler surfaces cause grooving of piping surfaces are organic matter cannot be removed with filters cause corrosion of boiler surfaces
010100020021000A oiler surfaces may have what appears to be blisters which are composed of a) b) c) d) e)
iron o&ide sodium sulphite caustic soda ferric sulphate chelates
010100020021000D oiler water with an alalinity that is too high will liely a) b) c) d) e)
have show have foam have
a lot of scale signs of pitting a low p= grooving on its surfaces
010100020021000, (orrosion products in feedwater can cause a) b) c) d) e)
slag deposits in superheaters decreased steam pressure increased steam pressure increase in boiler efficiency tube failure
010100020021000( oiler water with a p= of ' is considered a) b) c) d) e)
alaline basic acidic neutral acceptable for boiler water
315
010100020021000 Which of the following is an e&le of suspended matter? a) b) c) d) e)
sodium sand salt calcium magnesium
010100020021000A Which of the following is an e&le of dissolved solids? a) b) c) d) e)
magnesium sulphate o&ygen clay sand carbon dio&ide
010100020021000( 7emporary hardness in feedwater is caused by a) b) c) d) e)
calcium sulphate sodium nitrate magnesium bicarbonate calcium carbonate magnesium sulphate
010100020021000, eedwater for a high pressure boiler should be a) b) c) d) e)
treated with phosphate treated with phenolphthalein treated city water treated with salt softened water
010100020021000, A method of treatment which is often used in conunction with settling tans is a) b) c) d) e)
deaeration 9eolite softening deminerali9ing lime soda softening filtration
010100020021000 7he result of adding Al "5< ) to the raw water is 2 3 a) a higher p= b) floc c) corrosion d) pitting e) sublimation
316
010100020021000A 7he chemical e%uation which represents the modification of bicarbonates in hard water by the use of a 9eolite softener is a)
(a"=(< ) H :a V E (aV H 2:a=(< 3 2 2 3
b)
(aV H 2:a(l E :a V H (a(l 2 2
c)
Jg5<
H :a V E JgV H :a 5< 2 2
d)
(a"=(< ) H :a V E (aV H :a=(< 3 2 2 3
e)
JgV H 2:a(l E :a
H Jg(l 2
2
010100020021000D When using a sodium 9eolite water softener/ the modification of the sulphates in hard water is shown by the chemical e%uation a)
JgV H 2:a(l E :a
H Jg(l 2
2
b)
(a"=(< ) H :a V E (aV H 2:a=(< 3 2 2 3
c)
(aV H 2:a(l E :a V H (a(l 2 2
d)
Jg5<
e)
Jg5<
H :a V E JgV H :a 5< 2 2
H :a V E 2JgV H 2:a5< 2
010100020021000( During the regeneration of a sodium 9eolite water softener in the .8inse. stage/ the item"s) going to the sewer isare a) b) c) d) e)
calcium sulphate sulphates and bicarbonates calcium and magnesium ions sodium bicarbonates and sulphates magnesium bicarbonate
010100020021000, 7he regenerant used to regenerate a cation deminerali9er is a) b) c) d)
hydrochloric acid sodium chloride caustic soda sodium hydro&ide
317
e)
sulphuric acid
010100020021000A 7he regenerant used to regenerate an anion deminerali9er is a) b) c) d) e)
sodium hydro&ide sulphuric acid sodium chloride hydrochloric acid sulfamic acid
010100020021000, Veolite of a sodium 9eolite softener may be discharged to the sewer during the a) b) c) d) e)
inection stage of a regeneration service stage slow rinse stage of a regeneration fast rinse stage of a regeneration bacwash stage of a regeneration
010100020021000 7he capacity of a sodium 9eolite softener will drop due to 9eolite attrition at about a) b) c) d) e)
#R per year 3R per year 1#R per year 1R per year *R per year
010100020021000A ilters are used a) b) c) d) e)
for e&ternal water treatment to remove dissolved solids to remove calcium bicarbonates for internal treatment to remove hardness
010100020021000( Water filters must be cleaned a) b) c) d) e)
if the water becomes hard when the dissolved solids are high by bacwashing the filter media by chemically cleaning the filter media once per shift
010100020021000 (oagulants added to water a) b) c) d) e)
mae the water soft will remove fine particles more readily remove the dissolved solids causes the fine particles to float to the surface remove chemicals not used up
318
010100020021000( Bime6soda softeners a) b) c) d) e)
remove all dissolved solids from the water must be bacwashed periodically remove all dissolved solids and gases from the water changes the p= of the water remove the scale forming dissolved solids
010100020021000A =ot lime6soda softeners a) b) c) d) e)
can treat larger %uantities of water than the cold process type will remove all dissolved solids from the water are mostly used in small heating plants are only used when using well water are used mostly in large power plants
010100020021000 5odium 9eolite softeners a) b) c) d) e)
remove all dissolved solids from the water remove calcium and magnesium from the water are regenerated with an acid solution are regenerated with an alaline solution remove all dissolved solids and suspended matter from the water
010100020021000A Jechanical deaeration a) b) c) d) e)
removes is done is used is used removes
the dissolved gases from the water with the aid of chemicals to remove calcium and magnesium from the water to remove o&ygen only all dissolved gases and solids from the water
010100020021000A !itting of boiler metal may be prevented by a) b) c) d) e)
heating the boiler feed water to between +0 and 10# degrees (elsius before it enters the boiler cooling the feed water to between and 1' degrees (elsius the addition of sodium chloride to the feed water agitating the feed water before it enters the boiler the addition of sodium sulphate to the feed water
010100020021000( 7he 9eolite inside a water softener is used to a) b) c) d) e)
regenerate the brine solution rinse the softened water e&change sodium for calcium and magnesium e&change soda for calcium and magnesium e&change calcium for magnesium
319
010100020021000D n order to prevent the waste of steam through a deaerator vent/ the component used is a a) b) c) d) e)
cyclone separator chevron drier scrubber vent condenser dry pipe
010100020021000A A normal operating pressure range for a deaerator is a) b) c) d) e)
*0 to 100 !a 30 to #0 !a 100 to 1#0 !a 10 to 2# !a # to 3# !a
Internal Feedwater reatment and esting $ethods 010100020021000D An acceptable p= value for boiler water is a) b) c) d) e)
*$00 '$@# +$3# 10$#0 11$*#
010100020021000A 8elative to internal treatment/ it is customary to a) b) c) d) e)
precipitate dissolved solids with a .precipitator. cause dissolved solids to remain in solution filter out dissolved solids treat the dissolved solids so they remain dispersed condition the dissolved solids so they do not adhere to metal
010100020021000( A sludge conditioner will eep precipitated dissolved solids fluid and well dispersed and a) b) c) d) e)
permit their removal through a (D in solution prevent them from adhering to the metal is usually a non6organic compound is inected prior to the water softener
010100020021000( 7wo common chemicals used for deaeration are :a 5< and 2 3
320
a)
:a<=
b)
= 5< 2
c)
: = 2
d)
:a !< 3
e)
:a "=(< ) 2 3 2
010100020021000( (arbon dio&ide causes return line corrosion and may be a) b) c) d) e)
removed in the deaerator absorbed by sodium sulphite the result of bicarbonate decomposition neutrali9ed in the boiler with sodium hydro&ide neutrali9ed with filming amines
010100020021000A ,&cess sulphite is necessary to prevent a) b) c) d) e)
pitting hardness carry over acidity sludging
010100020021000D 5ludge is usually removed from the boiler by a) b) c) d) e)
filtering the water before it leaves the boiler raing it into a sludge trap vacuuming it from the bottom blowing down through the bottom blow down connection blowing down through the continuous blow down
010100020021000 nternal water treatment is a) b) c) d) e)
used with low pressure boilers only adding chemicals to the boiler water adding a coagulant to the settling tan measuring the p= of the feedwater adding chemicals to the steam in the boiler
010100020021000A 7he p= of the water in the boiler a) b) c) d)
is controlled with sodium hydro&ide could be controlled with amines must have a value of * is controlled by adding treated water
321
e)
should be neutral
010100020021000( 5ludge conditioning in a boiler a) b) c) d) e)
is controlled by the continuous blow down is to prevent pollution from the water blown down from the boiler prevents the sludge precipitates from adhering to the boiler plates and tubes is done to mi& the sludge with the boiler water neutrali9es the sludge forming substances
010100020021000, oaming of water in the boiler a) b) c) d) e)
is due can be can be can be can be
to a high concentration of dissolved gases controlled by adding sodium phosphate controlled by adding more neutrali9ing amines controlled by adding sulphur to the feedwater controlled by the bottom and continuous blow downs
010100020021000A 5odium sulphite chemical will a) b) c) d) e)
prevent corrosion due to o&ygen in the boiler water precipitate with calcium and magnesium prevent scale adhering to the tubes control foaming control return line corrosion
010100020021000D 8eturn line corrosion a) b) c) d) e)
can can can can can
be be be be be
controlled by feeding sodium bicarbonate prevented by adding sodium phosphate prevented by adding sodium sulphite controlled by feeding amines controlled by adding polymers
010100020021000D 5odium sulphite is used in boilers to a) b) c) d) e)
prevent prevent control prevent prevent
scale formation carryover dissolved solids o&ygen corrosion foaming
010100020021000( 7he boiler blowoff should be used to a) b) c) d) e)
reduce steam pressure reduce feedwater pressure control the total dissolved solids prevent scale formation e&pel the sodium sulphite
322
010100020021000D 7he p= of the boiler water should be maintained at a) b) c) d) e)
neutral slightly alaline 11$# 10$# *
010100020021000, 7o prevent scale formation/ inect a) b) c) d) e)
9eolite sodium chloride phenolphthalein amines phosphates
010100020021000A
concentration of sodium hydro&ide concentration of sodium chloride overheating of boiler parts concentration of sodium sulphite e&cessive boiler pressure
010100020021000A 7he water in a boiler should be ept a) b) c) d) e)
alaline neutral acidic at a p= of 1 at a p= of *
010100020021000A 8aw water has hardness due to a) b) c) d) e)
the salts of calcium and magnesium suspended solids organic material dissolved gases phosphates
010100020021000, Alalinity in boiler water may be due to calcium/ sodium or magnesium a) b) c) d) e)
hydro&ides carbonates and bicarbonates bicarbonates hydro&ides and bicarbonates hydro&ides/ carbonates and bicarbonates
010100020021000
323
7he phenolphthalein or .!. alalinity test does not indicate alalinity due to a) b) c) d) e)
hydro&ides bicarbonates sulphates carbonates phosphates
010100020021000D 7he methyl orange or .J. alalinity test indicates alalinity a) b) c) d) e)
due to carbonates only due to bicarbonates only due to hydro&ides only caused by all dissolved impurities contributing to alalinity due to organics only
010100020021000 When conducting a 7D5 or 7otal Dissolved 5olids test/ the impurity which has a high conductivity and must be neutrali9ed is a) b) c) d) e)
sodium phosphate hydro&ide alalinity p= suspended solids sodium chloride
010100020021000 oiler water chemicals are inected a) b) c) d) e)
in measured amounts once per year after considering the water test readings into the water softener to prevent the water becoming too alaline each time after blowing down
010100020021000 A residual of 20 to 0 ppm of sodium sulphite is to be maintained in the boiler water to a) b) c) d) e)
eep down the sludge prevent pitting in the boiler steam drum prevent scaling the float in the low water cut6off eep feed water lines free of algae reduce the total chemical consumption
010100020021000, 7he conductivity meter is used to measure the a) b) c)
current alalinity electrolyte
324
d) e)
voltage 7D5
010100020021000A 7otal alalinity is measured a) b) c) d) e)
using methyl orange indicator and :#0 sulphuric acid to be sure that it is not more than 2#00 ppm to eep a chec on the dissolved o&ygen to control sludge formation by using phenophthalein and :#0 sulphuric acid
010100020021000A oiler water testing is done in the average power plant every a) b) c) d) e)
shift wee month time the boiler inspector re%uests it time the chief engineer re%uests it
010100020021000( When used as a term during boiler water testing/ D5 means a) b) c) d) e)
deminerali9ed steam drain solids dissolved solids dissolved sulphite depleted salts
010100020021000A !henolphthalein is a) b) c) d) e)
an indicator a reagent a buffer an acid softener neutrali9ing agent
010100020021000, 7itrating is done with a) b) c) d) e)
a titrant a 9eolite an antifoam trisodium phosphate a reagent
010100020021000( When performing a water test be sure that1$ 2$ 3$ $
all e%uipment is clean and in good woring order results are recorded carefully before maing the test test solutions/ indicators/ and reagents are fresh/ and at full strength test reagents are filtered before use
