Note: Encircle the letter of only one alternative, which you think is most appropriate.
1.
#.
For 8” ND Sch 40 and 8” ND Sch 80 pip pipes, a.
OD fo for both pi pipes wi will be be same
b.
IDs IDs and and ODs for for bot both pipe pipes s will will be diffe iffere rent nt
c.
!era"e pipe diameters for both will be same
d.
ID for both pipes will be same
$ot tappin" is best described b% statement& a.
It is tech techni ni'(e '(e of heat heatin in" " the the pipe pipe to spec specif ifie ied d tem tempe pera rat( t(re re and "entl% tappin" with 1 lb. ro(nded hammer to detect thinnin" of pipe wall
b.
It is tech techni ni'(e '(e of pro! pro!idi idin" n" a tap tappi pin" n" co conn nnec ecti tion on whil while e pip pipe e s%stem is in operation
c.
It is tec techn hni' i'(e (e of fi)i fi)in" n" a wat water er tap tap on on hot hot wate waterr line lines s for for (se d(rin" winter
d.
It is act act of of (si (sin" n" the the tap tap and and die die for for thr threa eadi din" n" the the pip pipe e when the pipe is hot
*.
+hich of the followin" defines the term hold point a.
-he -he poi point nt at whic which h a pipe pipe han" han"er er is atta attach ched ed to a pip pipe. e.
b.
po point int at at wh which ich a /cl /clam amp p is is fi) fi)e ed on on the the pipe pipe..
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BENCH MARK QUIZ
c.
point at pipe be%ond which wor ma% not proceed (ntil inspections ha!e been performed and doc(mented
d.
4.
tr(nnion, or slidin" shoe (sed for pipin" s(pport s%stems
+hich of the followin" statements is tr(e a.
Flan"e ratin" indicates flan"e diameter.
b.
Other factors remainin" same, 2+ pipes can withstand hi"her press(re than seamless pipes.
.
6.
c.
Deadle"s means pipes with broen s(pports.
d.
3I 50 is applicable for metallic pipes onl%.
3ost weld heat treatment is carried o(t a.
-o increase $ardness
b.
-o increase -ensile stren"th
c.
-o release loced/(p stresses in the weld
d.
None of abo!e.
+hat section of the S7 boiler and press(re !essel code is the basic doc(ment for weldin" proced(re '(alification
5.
a.
Section III
b.
Section III
c.
Section I9
d.
S7 Section II :
+hat can be ca(sed to ferro(s metals b% the low operatin" temperat(res a.
Increase of d(ctilit%
b.
;oss of d(ctilit% and to("hness
c.
Increase in plasticit% or deformation Page 2 of 5
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BENCH MARK QUIZ d.
8.
Decrease in %ield stren"th
3I 50 is intended to appl% to& a.
New pipin" in the chemical Ind(str%
b.
3ipin" that has been placed in ser!ice
c.
New pipin" in the 3etrole(m 2efiner% New pipin" in the 3aper Ind(str%
d.
<.
If a welder is to be '(alified in all positions he m(st pass test in which positions
10.
11.
a.
1=, #=, *= and 4=
b.
= and 4=
c.
6=
d.
= and 4=
S-7 106 =r > pipes belon" to which t%pe a.
Seamless onl%
b.
2+ onl%
c.
Seamless or 2+ dependin" on t%pe of =rade
d.
None of abo!e
:hoose correct statement. a.
?23I2”
of pipin" means chan"e of ori"inal Desi"n
conditions b.
?;-2-ION” of pipin" means chan"e of ori"inal Desi"n conditions
Page 3 of 5
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BENCH MARK QUIZ
1#.
1*.
14.
c.
>oth are one and same
d.
2epair is temporar%, alteration is permanent
NSI@ S7 > *1.* code is meant for& a.
Steam pipin" in 3ower stations
b.
3ipin" in 2efiner% and process plants
c.
:ross/co(ntr% pipin"
d.
=as transmission pipin"
-he term ?N3S 10 pipe” means& a.
pipe with National 3ress(re Standard of 10 bar
b.
pipe whose minim(m thicness is 10 mm
c.
pipe whose o(tside diameter is 10A
d.
pipe whose Nominal diameter is 10A
7ost of the fl(ids normall% co!ered b% > *1.* code fall (nder what cate"or%
1.
a.
:ate"or% 7
b.
:ate"or% B
c.
:ate"or% D
d.
Normal
-he re'(irements of the latest edition of S7 :ode
Section >
*1.* and an% s(bse'(ent ddenda become effecti!e& a.
s soon as the latest edition is iss(ed
b.
Immediatel% from date of iss(e and all pipin" installed per earlier editions m(st be (p"raded to latest edition@addenda