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LET 2015 Answer questions 1-5 based on the given passage. Choose the best answer from the option given. ! bring to "our mind those "ear#" da"s$ when the nature produ%ed huge monsters. &ho in those da"s %ou#d dare to be#ieve that the" were doomed' Then happened a mira%#e. A## of a sudden$ in the midst of that org"$ of highness and ph"si%a# strength$ appeared (an$ without weapon and without prote%tion$ na)ed$ sma## and tender of s)in. *e dis%overed the fu## power of his inte##e%t and stood up against the might of mus%#e with weapon shaped b" his mind$ and he he#d his own and survived+. 1. ,Then happe happened ned a mira%#e mira%#e what what was the mira% mira%#e #e happened' happened' A/ (an (an appear appeared ed C/ atur ature e appear appeared ed / (onster appeared appeared / &eapon appeared 2. (an surviv survived ed be%ause be%ause of his 3333 3333333 3333333 3333333 333.. .. A/ &eapon C/ 4)in / !nte##e%t / (us%#e . !n ear#" ear#" da"s peop#e peop#e dared dared to be#ieve be#ieve that that 33333333 333333333 3 A/ (onsters wi## wi## be destro"ed destro"ed / &eapon wi## be invented invented C/ (an wi## wi## appear /ature / ature wi## produ%e huge monsters 6. 7i%) out from the the passage a word word that means means ,%onsign ,%onsign to destru%tion. destru%tion. A/ 4u 4urvive C/ oomed / 8rg" / (ira%#e 5. The anton"m anton"m of the the word word ,tender ,tender is 3333333333333 33333333333333333 3333 A/ 4oft C/ 4mooth / Tough / 9ent#e Choose the most suitab#e option to :## in the b#an)s ;. !f ! open the window$ the wind 33333333333333333333.. A/ wi## %ome C/ wou#d have %omedian / / wou#d u#d %ome // wou#d have ave been been %om %ome egin the senten%e with the word ,! <. The" gave me a pen. A/ ! gave a pen / ! was given a pen
C/ ! wi## be given a pen / ! wi## give a pen
!dentif" the wrong se%tion =. The progra programme> mme> was was inaugur inaugurated ated > b"> the the prin%ip#e prin%ip#e.. A/ The progra programme mme C/ b" / was inaugurated / the prin%ip#e ?. A person person who )nows or or %an spea) man" man" #anguages #anguages is 33333333.. 33333333..
A/ 7o#"gam" / 7o#"g#ot
C/ 7o#"s"##abi% / 7o#"phon"
Comp#ete the proverb 10.irds of feather 3333333333333 A/ @#" to south C/ :ght with ea%h other / o%) together / :## the %age 11.&hi%h of the fo##owing of
gives in:nite number of so#utions to the s"stem'
B"D; B 2 " D 10 B 2"
D 10
A/
¿− 3
/
/
¿0
/
[
12.!f A
A/
/
[ [
1
2
¿1
]
= −1 then A equa#s
2
− ]
1
2
2
C/
1
− ]
8
16
16
/
8
[ [
256
0
0
−256
625
0
0
625
]
]
1.Choose the %orre%t pair of va#ues of sum and produ%t of Eigen va#ues of the prin%ip#e matriB
[ ] 2
2
1
1
3
1
1
2
2
A/ 5 F < C/ < F / < F 5 / 5 F 16.&hi%h of the fo##owing ve%tors are #inear#" dependent' A/ G1$ 2$ /$ 0$ 0$ 1/$ 1$0$0/H C/ G0$ 0$ 1/$ 0$ 1$ 1/$ 1$1$1/H / G0$ 1$ 2/$ -1$ 1$ 2/$ 2$1$0/H / G1$ 2$ 1/$ 1$ -1$ 1/$ $1$2/H
[ ] [ [− − ] − [ ] 5
15.!f
A/
4
1
3
14
4
1
/
1
I
3
17
1
−2
1
3
]
then I equa#s
C/
2
1
/
[ ] [ ] 1
3
2
1
3
14
4
17
"
1;.!f u B then
∂u ∂ y '
A/"B #og B C/ "B "-1 /B" #og B / B" B-1 − a sin x 1<.if " e whi%h of the fo##owing is %orre%t. 1
(A) 1-x /2 y n+2 + 2n +1/ y n+1 – n2 +a2/ y n = 0 (B) 1+x /2 y n+2 - 2n -1/ y n+1 – n2 +a2/ y n= 0 (C) 1-x /2 y n+2 - 2n -1/ y n+1 – n2 +a2/ y n= 0 (D) 1-x /2 y n+2 - 2n +1/ y n+1 – n2 +a2/ y n= 0
1=.
lim
¿θ→∞ ❑
1−cos θ sin
2
'
θ
−1 A/
1
/
2
/ ∞
C/ 0
2
1?.Jadius of %urvature at 0$2/ on the %ir%#e
x
2
y
2
6 is
A/ 6 / 2 C/ 1 / did not eBist 20.A re%tangu#ar boB open at the top is to have vo#ume 2 %ubi% feet. &hat is the minimum surfa%e area of the materia# required for %onstru%tion' A/ 26 sq. ft C/ 2 sq. ft / 5; sq. ft / 6= sq. ft U n+ 1 1 U lim n $ if 21.@or a positive term series 2 $ whi%h of the n →∞ Un
∑
fo##owing is %orre%t. U n %onverge A/
C/ did not predi%t its %onvergen%e
/
/
∑ ∑ U
n
diverge
∑ U
n
os%i##ates
1
22.4um of the a#ternating series 1 A/ 0
/
∞
2
1
3
1
-
4
33333. !s
C/ #og 2
/ does not eBist
x
1
2.&hi%h of the fo##owing is %orre%t for the series
x
2 √ 1
2
3 √ 2
6
5 √ 4 3333333333333
A/ Converges when x / iverges for a## x
2
¿1
∞
C/ Converges for a## x / Converges when
26.&hi%h of the fo##owing is a %onverging series'
x
2
¿1
x
4
√ 3 4
1
A/ 1
1
2
1
3
1
/ 1
C/ 1
1
1
√ 2
√ 3
1
1
2
1
333333333. ∞
4
∞ √ 4 3333333. 1
3
2
2
1
4
2
5
33333. ∞
/1-11-11-1 33333333..3. ∞ 25.&hat is the sum of the series 0.1 0.01 0.001 0.0001 0.00001 333333. ∞ 1
A/ ∞
/1
C/ 2
/
9
2;.!f f(x) = - f(-x) and f(x) satisf" iri%h#et %onditions then f(x) %an be eBpanded in a @ourier series %ontaining A/ 8n#" sine terms C/ Cosine terms and %onstant term / 8n#" %osine terms / 4ine terms and a %onstant term 2<.&hi%h oK the fo##owing fun%tion is not periodi%' i 8 πθ A/ 5 %os 5 C/ e / 4 in %os
/
e
3θ
%os
2=.&hi%h of the fo##owing is the @ourier series representation of B -
π , π / ∞
2
A/
− π π
3
− π
-
3
/
3
n +1
2
(−1)
1
4
∑ = n
2
n
4
∑ = n
2
n
1
∑
%os nB
%os nB
(−1)
%os nB
∑
(−1)
%os nB -
n +1
∑
n
n +1
2 (−1)
n +1
2 (−1)
n
1
s
A/
2
(¿ ¿ 2 + a ) 2
2 2
(s − a )
C/
2 as
¿
sin nB
n
2?.The Lap#a%e transform of t sin at 2 as
sin nB
n
n=1
∑ =
sin nB
n
2 (−1)
n= 1
∞
n +1
n +1
2 (−1)
n= 1
∞
n +1
1
∞
2
π
(−1)
∞
4
∑ = n n
∞
n +1
1
∞
2
C/
2
n ∞
2
/
∑ = n
3
4
sin nB
x
2
in -
a+ s /
2
2 as
/
2
(s +a )
2
2 2
(s +a ) 2 s+ 2
0.The inverse Lap#a%e transform of −t
A/ 2
e
/ 2
e
−t
sin t %os t
2
s + 2 s + 10
C/ 2 /
− t
e
e
t
%os t
sin t
1.An invar tape is made of an a##o" oK A/ Copper and stee# C/ rass and stee# / rass and ni%)e# / i%)e# and stee# 2.!n the %ement the %ompound qui%)est to rea%t with water is A/ Tri%a#%ium a#uminate C/ Tri%a#%ium si#i%ate / Tetra-%a#%ium a#umino-ferrite / i%a#%ium si#i%ate .&hi%h is test re#ated to wor)abi#it" ' A/ 4oundness test C/ vee ee Consistometer test / 7ro%tor Test / 7#ate #oad test 6.4easoning is A/ A pro%ess of removing moisture C/ 7ainting with sodium si#i%ate / Creosoting / Coating with tar 5.!n whi%h t"pe of bond$ header and stret%her p#a%ed a#ternative#" in ea%h %ourse' A/ Eng#ish bond C/ *eader bond / 4tret%her bond / @#emish bond ;.&hi%h of the fo##owing t"pe of foundation is used for b#a%) %otton soi#s' A/ Mnder reamed pi#es C/ 9ri##age foundation / !nverted ar%h footing / 4and pi#es <.An imaginar" verti%a# #ine whi%h in%#udes the verti%a# Noint separating two adNoining bri%)s is )nown as A/ Lap / 7erpend C/ at / C#oser =.The %ommon#" used dr"ing oi# for paints is A/ 8#ive oi# C/ )erosene oi# / Linseed oi# / Co%onut oi# ?.The member whi%h is p#a%ed horiDonta##" to support %ommon rafter of a s#opping roof$ is A/ 7ur#in C/ atten / C#eat / 4trut 60.@or %onstru%ting a terraDDo oor$ pi%) up the in%orre%t statement from the fo##owing A/ A base %ourse is prepared as in %ement %on%rete ooring / A 2mm thi%) #a"er of %ement %on%rete 1O2O6/ is #aid on the base %ourse and the surfa%e is made smooth b" trowe##ing. C/ 9#ass strips are driven into the #a"er a%%ording to the pattern required. /After :na# grinding is over$ oBa#i% a%id miBed with water is spread over and rubbed hard with soft materia#. 61.Pou are as)ed to design and supervise a truss for a fa%tor" to have spans ;m to ?m. The t"pe of the truss "ou use is
A/ (ansored truss C/ Qing post truss / 4%issors truss / Co##ar truss 62.!n %hain surve"ing tie #ines are primari#" provided A/ To %he%) the a%%ura%" of the surve" / To ta)e oKsets for detai# surve" C/ To in%rease a%%ura%" of wor) /To in%rease the number of %hain #ines. 6.!n quadranta# bearing s"stem$ ba%) bearing of a #ine ma" be obtained from its forward bearing$ b" 0
A/ Adding
180
0
$ if the given bearing is #ess than
180
0
/ 4ubtra%ting
180
0
$ if the given bearing is more than
180
C/ Changing the %ardina# point$ i.e. substituting for 4 and E for & and vi%eversa /4ame as given bearing 0 0 66.The bearings of the #ines A and C are 146 30 ' and 68 0. The in%#ined ang#e AC is 0
A/
102
/
78
0
C/
45
0
0
/
302
65.The main prin%ip#e of surve"ing is to wor) A/ @rom pert of who#e / @rom who#e of the part C/ @rom higher #eve# to the #ower #eve# /@rom #ower #eve# to the higher #eve# 6;.Temperature of an idea# gas during thrott#ing eBpansion A/ e%reases C/ Jemain the same / !n%reases / e%reases >in%reases depending on initia# %ondition 6<.uring po#"tropi% eBpansion of a gas$ wor) obtained is maBimum when eBpansion indeB ,n is A/ 1.6 / 1 C/ 0.5 / ∞ 6=.Jeversib#e adiabati% pro%ess is a#so %a##ed A/ !sentropi% pro%ess C/ Thrott#ing pro%ess / !sentha#pi% pro%ess / po#"tropi% pro%ess 6?.Compression ratio of an interna# %ombustion engine is de:ned as A/ 4wept vo#ume > %#earan%e vo#ume / Tota# vo#ume > %#earan%e vo#ume C/ 4wept vo#ume > tota# vo#ume /C#earan%e vo#ume > tota# vo#ume 50.@or the same %ompression ratio A/ 8tto %"%#e is more eR%ient than diese# %"%#e / iese# %"%#e is more eR%ient than otto %"%#e C/ oth have same eR%ient /Cant sa" 51.!dea# Jan)ing %"%#e %onsist of A/ Two isentropi% and two %onstant vo#ume pro%esses / Two isotherma# and two %onstant pressure pro%esses C/ Two isentropi% and two isotherma# pro%esses
/Two isentropi% and two %onstant pressure pro%esses 52.!n %ase of impu#se steam turbine A/ There is pressure drop in moving b#ades on#" / There is pressure drop in :Bed b#ades on#" C/ There is pressure drop in both :Bed and moving b#ades /There is no pressure drop in the turbine 5.74* of a pump represents A/ et positive stagnation head / et power su%tion head C/ et positive su%tion head /egative pressure su%tion head 56.egative s#ip is often asso%iates with A/ Je%ipro%ating pump C/ ABia# pump / Jotod"nami% pump / Set pump 55.Equipment #a"out sequen%e in a vapour %ompression refrigeration s"stem A/ Copressor %ondenser evaporator eBpansion va#ve / Copressor eBpansion va#ve evaporator %ondenser C/ Copressor evaporator eBpansion va#ve %ondenser /Copressor %ondenser eBpansion va#ve evaporator 5;.
45
0
upward pro%ess #ine in a ps"%hrometri% %hart represents
A/ Coo#ing and dehumidi:%ation / *eating and humidi:%ation C/ *eating and dehumidi:%ation /Coo#ing and humidi:%ation 5<.Chorda# a%tion is asso%iated with A/ e#t drive C/ gear drive / Jope drive / %hain drive 5=.Among the fo##owing$ se#e%tive irreversibi#it" %hange of input and output drive/ is possib#e A/ *e#i%a# gear pair C/ *erring bone gear pair / eve# gear pair / &orm and worm whee# pairs 5?.,*ot spot is asso%iated with A/ Casting pro%ess C/ EBtrusion pro%ess / 4pot we#ding pro%ess / 4haping ;0.!nterna# thread %utting is %a##ed A/ @orming C/ roa%hing / Taping / 4haping ;1.The series %ombination of a 20 v$ 100 & bu#b and 20 $ ;0 & bu#b is %onne%ted to a 20 $ 50 *D supp#". &hi%h bu#b wi## g#ow brighter' A/ 20 v$ 100 & bu#b C/ oth wi## have equa# brightness / 20 $ ;0 & bu#b / 20 v$ 100 & bu#b wi## be burn oK ;2.The unit of temperature %oeR%ient of resistan%e is A/ 8hms> degree C / Mnit#ess / 7et degree C / egree C > 8hm ;.The dire%tion of a d"nami%a##" indu%ed emf %an be found out using A/ Jight hand s%rew ru#e C/ @#eming #eft hand ru#e / @#eming right hand ru#e / othe A/ and / ;6.The form fa%tor of a sinusoida# a.%. waveform is A/ 0.<0< / 0.;; C/ 1.11 / 1.616
;5.!n an J-L a% %ir%uit$ whi%h of the fo##owing is true' A/ #eads ! b" ?0 degrees / #ags ! b" ?0 degrees C/ ! #ags b" an ang#e between 0 and ?0 degrees /! #eads b" an ang#e between 0 and ?0 degrees ;;.&hi%h of the fo##owing C motor is used for e#e%tri% tra%tion' A/ C series motor C/ oth A/ and / / C shunt motor / C %ompound motor ;<.A three phase indu%tion motor with rated speed 1660 rpm is running at 1610 rpm. &hat is the operating s#ip' A/ 0.0;U / ;U C/ 0.02U / 2U ;=.The prote%tion de#ivered b" ELC is against A/ 8ver frequen%" C/ 8ver %urrent / 8ver vo#tage / Earth #ea)age %urrent ;?.&hi%h of the fo##owing gives maBimum #umens> watt' A/ (er%ur" vapour #amp C/ C@L / !n%andes%ent / 4odium vapour #amp <0.&hi%h of the fo##owing is used for high power app#i%ations' A/ i%)e# %admium C/ i%)e# meta# h"dride / Lithium ion / Lead a%id <1.&hi%h state has the maBimum wind farm insta##ations' A/ Sammu C/ ihar / Tami#nadu / &est banga# <2.&hi%h among the fo##owing %an have a va#ue greater than one' A/ emand fa%tor C/ Mti#isation fa%tor / iversit" fa%tor / Load fa%tor <.11000 s"stem wou#d a part of A/ 7rimar" transmission C/ primar" distribution / 4e%ondar" transmission / 4e%ondar" distribution <6.CJ98 stee# is used to A/ To redu%e h"steresis #osses / To redu%e %opper #osses C/ To redu%e edd" %urrent #osses /To redu%e fri%tiona# #osses <5.The need of high transmission vo#tage in the power s"stem is A/ To improve power fa%tor / To redu%e transmission #osses C/ To improve safet" #eve# /To redu%e %orona eKe%t <;.!n an t"pe semi%ondu%tor$ there are A/ o minorit" %arriers / !mmovab#e negative ions C/ !mmovab#e positive ions /*o#es as maNorit" %arriers <<.E#e%tri%a# %ondu%tivit" of a semi%ondu%tor A/ !n%reases with rise in temperature / e%reases with rise in temperature C/ oes not %hange with rise in temperature /@irst in%rease and then de%rease with rise in temperature
<=.!f a 5O 2 step down transformer has a primar" %urrent of 20 mA$ then the se%ondar" %urrent wi## be A/ 6 mA / 500 mA C/ 100 mA /0.= mA
I o A/
sin
I o / π
ωt $ is /
I o
C/
I o / 2
/ 2
I o
=1.The upper %ut oK frequen%" of an JC %oup#ed amp#i:er main#" depends on A/ Coup#ing %apa%itor / "pass %apa%itor C/ 8utput %apa%itan%e of the signa# sour%e /!nter e#e%trode %apa%itan%e and shunt stra" %apa%itan%e =2.Cross over distortion behavior is %hara%teristi% of A/ C#ass A output stage / C#ass b output stage C/ C#ass A output stage /Common base output stage =.A ST is said to be operating in the saturation region if A/ oth Nun%tion is forward biased / ase emitter Nun%tion is forward biased and base %o##e%tor Nun%tion is reverse biased C/ ase emitter Nun%tion is reverse biased and base %o##e%tor Nun%tion is forward biased /oth Nun%tions are forward biased =6.The va#ue of β for a transistor for whi%h the va#ue of α =0.96 wi## be A/ 2.6 / 26 C/ 0.26 / 6= =5.@or dete%ting #ight intensit" A/ 7hotodiode is reverse biased / 7hotodiode is forward biased C/ LE is reverse biased /LE is forward biased =;.@igure of merit of a #ogi% fami#" is given b" the produ%t of A/ 9ain bandwidth / 7ropagation de#a" time and power dissipation C/ @an out and propagation de#a" time /oise margin and power dissipation =<.!n %ommer%ia# T transmission in !ndia A/ 7i%ture is in 4 and spee%h is in 4 / 7i%ture is in @( and spee%h is in 44 C/ 7i%ture is in 4 and spee%h is in @(
/7i%ture is in @( and spee%h is in A( ==.LissaNous pattern obtained on a CJ8 s%reen %an be used to determine A/ 7hase shift / o#tage C/ Amp#itude distortion /Current =?.7ower is drawn b" C(84 inverter on#" when A/ !ts output is high / !ts output is #ow C/ !t swit%hes between #ogi% #eve#s /!t stati% state ?0.The equiva#ent de%ima# number 11001.001 is A/ 1?.125 C/ 25. 250 / 1?.250 / 25.125 ?1.Logi% I 8J operation of C4A0/* F 3B5F/* resu#t in A/ 0000 / AC C/ 1111 / @@@@ ?2.!n virtua# memor"$ address generated b" the C7M is )nown as A/ 7h"si%a# #a"er / Logi%a# #a"er C/ 7ost re#o%ation register address /Abso#ute address ?.Add- and - = whi%h are represented as 5 bit$ signed$ 2s %omp#ement binar" numbers and the resu#t is A/ 10101 with no overow / 10100 with overow C/ 11010 with overow /10101 with overow ?6.The amount of time that #apses after the head positioned over %orre%t tra%) unti# the starting position of the addressed se%tor passes under the read>write head in a hard dis) is )nown as A/ 4ee) time / A%%ess time C/ Laten%" time /Corre%tion time ?5.After the eBe%uting the fo##owing program fragment with initia# va#ues of B 5 and " 10 B B "V " B W "V B B W "V A/ a#ue of B wi## transferred to " / a#ue of " wi## be transferred to B C/ a#ues of B and " wi## be inter%hanged /a#ues of B and " wi## be Dero ?;.!f the integer is represented using 1;-bits in storage$ then the maBimum va#ue of a signed integer is A/
2
15
16
/
2
C/
2
16
15
-1
/
?<.&hat wi## be the output of the fo##owing fragment of the %ode for int i 1V ! X 10V i 5 /
2
-1
G 7rintf Ud+$ i/V i H A/ 1 ; < / 1 < C/ 1 2 ; / 1 ; 10 ?=.The separation of the data de:nition from the program is )nown as A/ ata entr" / ata indeBing C/ ata independen%e /ata a#ignment ??.Jeferentia# integrit" in a re#ationa# database refers to A/ Ever" foreign )e" va#ue must mat%h with a foreign )e" va#ue in a asso%iated tab#e / Ever" primar" )e" va#ue must mat%h with a foreign )e" va#ue in an asso%iated tab#e C/ Ever" foreign )e" va#ue must mat%h with a primar" )e" va#ue in an asso%iated tab#e /Ever" primar" )e" va#ue must mat%h with a primar" )e" va#ue in an asso%iated tab#e 100. &hi%h of the fo##owing statement is %orre%t about aggregate fun%tions' A/ Count Y/ ignores nu## / Count Y/ does not ignores nu## C/ Avg/ ignores nu## /Count Y/ returns error for nu## va#ue 101. 7hosphores%en%e means A/ 4pontaneous emission of #ight b" a substan%e that has absorbed #ight / Continuous g#ow of a beam on a s%reen even after its remova# C/ 7ersisten%e of an after image for approBimate#" one siBteenth of a se%ond on the retina /Emission of visib#e #ight from a hot bod" as resu#t of temperature 102. Tota# number of piBe#s in a disp#a" is )nown as A/ Capa%it" / Jeso#ution C/ A%%ura%" /Jange 10. 4"n%hroniDation in seria# %ommuni%ation is a%hieved through A/ Error %orre%tion / Error dete%tion C/ 4tart and stop bits /ata manipu#ation 106. ridge operates at the A/ 7h"si%a# #a"er / ata #in) #a"er C/ etwor) #a"er /App#i%ation #a"er 105. &hen e-mai# is de#ivered from %#ient to e-mai# server$ the proto%o# used is A/ 787 / 4(T7 C/ !C(7 / *C7 10;. The dimension of energ" in (LT s"stem is
−3
2
A/
ML T
/
ML T
−2
2
−2
3
C/
ML T
/
MLT
−3
10<. !f two for%es of equa# magnitude ,7 a%t perpendi%u#ar to ea%h other their resu#tant is given b" the eBpression A/ 7
b/27
√ 2 7
C/
/ 2 √ 2 7
10=. (oment of inertia of a triang#e of base ,b and a#titude ,h about its base is equa# to 3 3 A/ bh >12 C/ bh >;6 / bh
3
>;
/
bh
3
>=
10?. (aBimum va#ue of the stati% fri%tion is )nown as A/ Limiting fri%tion / 4#iding fri%tion C/ r" fri%tion /Qineti% fri%tion 110. The eBpression for no. of member ,n of a frame in terms of no. of Noints ,N %an be written as A/ n 2N C/ n 2N> / n 2N - / n N 2 111. The ve%tor A passing through A 1$ 2$ -1/ and $ 2$ 2/ is A/ 6N 6N ) / -2N -) / 2i 6N -) / 2i ) 112. (oment of inertia of a so#id %"#inder about a %entroida# aBis perpendi%u#ar to the %"#inder is 2 2 A/ MR / 2 C/ MR / 12 2
/
MR / 4
/ MR
2
/ 16
11.
Time of ight of a proNe%ti#e is given b" 2 A/ 2u sin α / β / 2u sin α / β 2
C/ u
sin
/M sin
2
α / β α / β
116. The piston of an engine moves with simp#e harmoni% motion. The %ran) rotates at 100 rpmV :nd the angu#ar ve#o%it" in rad>se%. A/ 0.1016< C/ 5.25 / 1.06< / 10.6< 115. A bod" fa##s from a height ,h under the a%tion of gravit" ,g. The ve#o%it" attained b" it is A/ gh C/ √ 2 gh
/ 2gh
/
√ gh
11;. A for%e of 200 )g a%ts for 0.= se%onds on a mass ;.6 )g whi%h is initia##" at rest. The ve#o%it" attained b" the bod" is A/ 25 m>s C/ 0.25 m>s / 2.5 m>s / 250 m>s m A 11<. A bod" of mass moving with uniform ve#o%it" of = m>s %o##ides with another bod"
m
at rest after whi%h the two bodies together begin to
move with uniform ve#o%it" of ; m>s. Jatio of mass
m A / m
is
A/ 0.<5 C/ 1. / 0. / .00 11=. !n order to doub#e the period of a simp#e pendu#um$ its #ength shou#d be A/ !n%reased 2 times / in%reased 6 times / e%reased 2 times / de%reased 6 times 11?. A simp#" supported beam A of span 5m is #oaded with a point #oad of 5) at C$ 2m from support A and an ML of intensit" 2 )>m for the remaining span of m. Ca#%u#ate the rea%tion at A is A/ ;.2 ) / .; ) / 6.= ) / 5.5 ) 120. A parti%#e starting from rest moves in a straight #ine whose equation of 2
motion is given b" 4 is A/ 20 m>s / 1< m>s
2 t
2
+ t + 5 . The ve#o%it" of a parti%#e after 2 se%onds
