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l t.E.S. (OBJ ) - 2(11)7

I

I or 1·1

MECHANICAL ENGINEERING

J

PAPER-II Match L1s1 - I 11ith List - II and select, the <:urrect ans11er using the code gl\·en belo11 the hsts List I (Application) A, Boiler Shell B. Manne Shal\ CouplirT![ C Crosshead and Piston Rod D. Automobile gew box (gears to shall) List - 11 (Joint) I Cotter Joint 2. Knuckle Jomt 3 R11•eted JOint .j, Splines 5. Bolted Jomt Codes: A B c D 1L l 2 5 ~

b.

3

s

c. By interference fit d None of lhe abo1·e Consider Lhe. follo11~ng stateme~ In case or bell dri vas: J Centrifugal Tension m belt mcre.ase~ the IIansmittcd 2 Cenrrifi.1gal tension does a(feot (he dm 1ng tension 3. Ma~mum tensJOn tn ~1e belus always three llmes the dnvmg tens100 Wh1ch of I he statements gil-en above •slare correct'1 a.

6.

4 4

I 5 2 3 ~ 5 A single parallel fillet weld of total leng01 1. nnd ll·eld size b subjected 10 a !CJlSile fond :P, will ba,•e 11hal design stress'?

c.

d.

2,

a. Tensile and equal tq

b

p

c.

H. 7()7Lil

b Tensile and eq\.aJ to L lh c. Shear and equal to

p tl.1MLh

d Shear and equal to L

Lh

3

+.

H011 can shock absQrbing of n belt be increased? a. B) tighterung it properly It B) increasing the shank c. Bs gnnding the shank d. By making the shan~ equal to the core diameter How 1s the type of a nulway wheel fi lled'/ a. By seam welding b. By fillet welding

d.

7

L 2and 3

b 2 and .3 only c.. I and 3 only d I only The maximum efficicnoy of a scre11 jack hal'iug square threads with frictiun •lng1e •P is l - lan(1p / 2) a J t-tan(tp / 2) l - latl 1/1

II

t!Ul '11

I

SID tp

1+-sm'/'

l - srn(q>/ 2) l +sm(q~/ 1)

In des1gmng a shaJ\ for vanable loads. the S.N. d•agram can bedra11n b)•: a Joining the So~ :u 0 eycJes Md S.J~t 10~ Gycles by a $1Iaight line on an S.N graph b Joining lhe IJ}J S., at LU()() cycl()S and S, al to<- cycles b)' a stra1gh~l.iue on a logS - log N graph c. Joining ~1e 0.9 s., at If)()O cycles and s. rollf' cycles by n strhi,ghtliue on rut S.N graph d Joining the s., at I !i()H cycles and (l ') S. at 11)6 cycles by a st~a1ght line on a Jog S - Jog N graph

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2 nf 14 solid slmtl LO tronsmll the oame torque at the s3tilc maximum
(S,. •tandll for llhimote tensile •tren!llh und :;, for the endurance limit) i\ lntch l,lst -I 1\' ith l.i•t - 11 •nd select th~ .:orrcct • nswer ll~ing th< "O
u, 30 m.m

12.

ro~i.'it:tnce is

1. proportiGIJ>I to tbo·-arca of' contact 2. proportional to ihe VlSCosity tubri.,nt

intcl11ecling •ha~ whkh :trc pi::l]Wtlt1icollor 111 cnch other .•. To ~ransm1t power when the sho fl.s me 1lamllcl +. 1'o lratl~t11iL pnwer 11 hen the ~h311S are at ngbt an@C5 IC) nne onoth
.1.

A 1

b.

2. 1

9.

B

C

2 3 2

3 1

4

D

13.

3

3. Shaft c. 2 an!I 3 Qn !y d. 1,2 aml 3

49. 5 Dllil

lo ge;tr& "ilh 200 prc:ssurc:. angle involutes fuU dq>lh le<~th. 010se with 200 pressure angle anclsrub teetl1 h:Jvc I. , mnller Bi1dendum 2. smltfler dedendum 3. smaller litotb lhtckness ~ 8feater bendmg. ~trength Which o-f tho •L1tements gmm above are

0Jlllpared

correct'.>

II

a. 1 2~nd 3 b, 1. 2nnd ~ c.. 1, 3,.nd 4 d. 2. ~ and"4 1\ hvllow ~haft nr outer dill ~0 mm 1md tnoer dia of 20 mm is lll l)c I'"J'l>et:d by ~

""J

2..~ 4 onI yd. l and .~ unly Increase ln values of which of the folt6Wiug results in an. [uere:.st uf tll() cooHicionl of friction in a h_ydrodynw:nia bearing?

I Viltcosfty ofthi< oil 2. Clearance between slurfl and beating.

b. ')9 Ill c. J48.5nllll tl !98 rom

tO.

prvportinn~ l to th~ ~pee
e.

tl 2 4 3 Tite wlo~:ity ratio betwolen piniun and ge:tr in • goor drive ;,_ 2.3, tl1e module uf Lcctlt i• 20 mm and rum of number of teeth on pinion and ge<~r is 99. \\!hal i• the centre tlisl>nce belwcctt pinion uud the gem-') :t,

of

4- independent ol'thepreuun: Whic~ l')f the M;tlt:f11 ent~ gi1•en •\love .,.,. C1lrreat'1 a. I, 2. ~ .md 4b. I .nd 4 nnly

C'Qdcs:

a.

I>. 35 mm c. I 0 (60) 1' 1 nuu. d. 10 · (2()J"l mm Con.•ider tlte following statements: for a journal rotating in • beoring under liiJu. lubricruion condition>, Uta frietionaL

1·1.

n11.wer- ~sing

th<: code

t\I"C!".tge vuluo~ vr <:fl'oetivc: cnefticienu; nf !ricti(I,O fot'i:H;Orintl" arcdosctibW hcltiW' L Sphoricwl bnll bearing2. Cylindrical roll<;!' bearing - 1':

r,

3. Tap of Ute following A.:quanol!S is

com:o>t'/

•• h.

c.

k£
r.

< ,;

d. lt
J; f, )~ ~ h

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15

Wltich one of lite followin_g o=xprcste• lh~ lOin I elongnliort of n bat llf lenglh I With a

20.

~()Minnl crnss-~e<:lion of A and lltlldulu> of J:ll•~ticity E hnnging l t 11icoU) nnd •ul,ject 10 i ..
caUod?

•.

WL .Jli WL 2 1.

"· 2&

16.

u·a mntcrbl c,.pands freely doc to hcntlng•

..JK tl"L 4rl£

In a sb'a ined maleri'al one of lhe princip:~i 5ltl:il.lles is 1wico: U1e olh,;r. Tblf .n>:~!Cimum .shear .s~! in the same C3Se is 'truu· Then. whot i• the ""lue 4)f fhl: mnxiinom principlo $1rc:s•'l n_,

22.

fm~tll

h. 2t,..~ C,

4-fttiM

For • gon~;~·~ 1110 Ji.n~ensionul str<:
(a, a, ),0

b.

o.l"'· ' "~)

c. tOO d. :25 23.

18.

~\fouflhuullllc b~um

b. the ~benf lllf•~ i> Lb<> same llu'ougbout tho bcrun

c. the cl~fkoctlon il; the same ~lf9ushuul

(a ;a, )

the be~m d. the ben
•tl"""

Rigidity modulus. E

= Young ·s. modulus of olnstioity) is OA.

24.

~rrect~

then wh•t is lhe value pf'lhe Pois.•on rnlin?

•• 0.20 b. 0.25 c. I)JO

IY.

Jo•N mm

Which one of the fo llowing statements is A beam iHa id LD beoftmifonn strengt!L if a. 1he bending moment is the same

}o

If Ule rollo G/E (0

i0°N mm

~oiTecl'l

2

~ (~·~",

6

10 N mm b. 125 • f06 Nmm

2

d. O.

it will deo;•elnr a, thermal stre;s b. tensile stress c. compressive ~II'CM d, no slre~s A c.1nrilevc:r l\e11m of l m ltnglh ~upporl~ 3 lrian~ttlnrl) di~iril>uted Jt•nd 11ver iL• cntir<: lc:ogtll. tile m~Xilllttnl of whid1 ;, at fbc tree end. The totallond is :.7 5 1~. W11at k lh~ bending moment :lllhe fixed t:nd'l

"· 50

d. Stma<

17.

l'l•~ti~il)

b. CR>Cillnl! 1:. Yielding d. B=king Which on" of the follow ins •lato.rnt:nts is correct?

2/Jll.

II.

uf I~

Whnt is lite phenomenon of progressive extension of the material i.e., nmln nler<:a•ilig wlth the lime 'lit .l CllnStant I(U!tl,

''· ().33 What •re Ihe matc:na t, which .sho11 direetiOI\ dopendi:!lt llrO(Jt:rlit!!i, ca lled1 •· 'Homul;t:n.:Uus mat.llrials h. Viscoela$llc. fllaler\ols "· .Isotropic materials tl. Anisotrojlic n101erials

25.

WlMJ • rec:lnogular sc;elion boom ill loadod trnns\'c'TScly ulong the lcnsU•. s h.,ar ~b·css develops on a. lop fibre of rect:mgular beam b muldle fibre ot' rect:on.gulor h<:llon c. hottom ·fibre of rectaogubr beam d. c:very bnrizonwl plane: The di~meter or a solid &!loft is D. 111c inside and outSide diomekrs of a holli1w sbu.O of same. mater••' .mJ k'1l8~' n.:c Dl ,[3 >nd 2D rcspllcllWb . Whal is

1../3

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the rntio of tlte wefght of the hollnw tO Lhol ul' the ~olid shall'r ~l ,

,, "' !J

~!tail

I. n' EI/4f

2 4~EI/P

I; I

3. lrh'.llf 4. n: w p

b. 1 : 4 26.

c. I : 2 I :3 Which one of the following stal.en>ent!l ;, correct? u· a hetic;~ l spring, is halved in length, ils spring sliiincs~

"· iL.

27.

C
tcrnains same

~.

b.

"'d.

30.

b. balv"' c. !loublos d. trip los A solid cir.:ular

~hall ;, ~ultieclcd to a moment t-,[ Qhd twi.ting moment I', Wh~i i~ tbe e
•• b

M +1

"-

.JMt +T1

d. M

28.

3 1.

r

Coll8idor thu follo,~ing stMcro"TJII!.

,,.u,'ll

[n • lhitk cylindlil!.'ll prc.,~urc n~el onbjc::ctcd rq inl•m•l rros~ure, the tangential and r.nli:.l ~IIWS
en

IJ\e li!IL~ 1.1.11 • J (J .ong Column) t\ . Both entl$ hinged B. One end l"l:'.ed. lmd oLhllf end frt:(: (', Botlt end$ 1111ed D. c)no: end fL"ed. and other end hinged LiM • ll (triti<:al Load)

3

2

~

.t

I

;I .t 2 Which one oJ U1e following, is Ute correct ascls'l

d. \\'lute c'lllt :ron

32.

For a Rhombohe!
I> a - fl -:cy% fl.l• c. " =r= 'Xl"~ P d.

COJTet:l'/

29.

D

.t

b. Nodular iron e. Gn:y cast iron

Which uf the •t.1 tcnll:nlll giVtln above isl31'e Jond2 b I and 3 e. 1 and ! d. "ODI)" Mntch ti~t - I witlt Li~t and select th~ correct uMwl:r u.~iJlg the code .given bel~''

~

('

a. Low carbon M~eel

l!itrc:S! rc:duces to zero :aioutcr-watJ..


11

.-\ l. 4 2

;;.;,

a ~ P ~r,. 91J•

Mat.!h Lis!- I wilh T.ist ·II :Ina •~teet tit~ Ctm-,ct ""•''"' u~ing the cvdc ¥iVc11 l•elo\\ the liJ;ts!

l.i$l- [ (Component\ t\. Bladc'll of bulldozer B. Gas lut'b ino bllldc~ C. Drill bit D. Spring• of nulo·mDbilcs List .fl f R"''"irod Prop..-rty) I . lligh

"""'

resistnncu

aad

high.

tougbnes..lrl

2. Lnw Yo11ng·s tiltil!ue strength

mod11fus and high

3 High weorand :tbraston rest'tonce

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5
~- High creep $lrength Md Cfln·osion res-isbm..:e I 'lid~:!); I) A 13 c a. I 2 4 ~ h I ~ 3 2 c. 3 4 I 2

d. 3.j.,

..

2

' " np(lro:
Codes:

.\

38.

O:.'C(If
.t.

b. e.

d. ~5

-a'2a Gb: 2 G'b

,,

Obl 4

What is Ute movement o1' block of atom• olong cennin Cl)'•tallogrnphte planes and directions. lenned :IS1

39.

n

h. 1'wmnins. e. Slip J, Jog W!tieb ope Of the foll
AcJyli<>~

C. Phenolics D. Bullldicnc rubber

Li:d.·TI (Applicution) l. Aul
tl)lliiKting of 1et:rile und cemo;tilile ;tt r110m tempernture h me<:honi~l mi.'\llll'¢ li:mtc and ~nu:nlite nt room temperature C. eute~.:l ic ml'
or

Code>

••

ccuu.::nt.itc :1 1 room LC1npcruturt:

o.

All Otc ;tOOVe lhtce :u-.: ccrn:ul 1-.lnloh List- I witlt List -TI iUld sclt:<.l Ute

b.

40.

B. l:.utcctic C. RutectQid D. Peritectic Ltst· ll (ln\'>n:mt Reaction During Conling) I. l.l Ql ' (l) SOU l:> a+ SOl.ll~ 2. LIOlltn, ~ L.IOUn:>a.- S\li,ID

Li~t ·II and ~elect the .:on'tlct nnS\1 er using Ute code given b~Low lh<> lis Ill~

B.

i1 G

correct .1.nswer uslug; th~ code- given below the Usts: List · l (Name of the Invariant Reaction) A. Monoleclk

given h~low· a. I and 2onl) b. 2 Mid 3 only c, I and 3 only d. I. 2 and 3 Match Li!:t • I wilh

List -1 ( Mat.orutl) A. Fibre reinforced plastiCs

•· ph•~e

37.

c

3 2 1 4 b. 1 4 3 2 3 4 L 2 1 2 3 4 Which of the follo" ing li>
3. Work size Select the cvm:ct """wer 1.t.
"· Glide

::l(i,

n

••

4

the ~tmln energy for 3 dis(ucation Of unit (e n g tJL ID:.,.pccth·c nf its edge or sCt'eW character?

Whot

I.\

3. SOL!D t ··~ SOLID, > SOLID, 4. I~IQUID + SOLID, .... SOLIDI

good

41.

\ I

2 I

B 4 ~

:0

c

D

3

2

~

2 c. 3 ~ d. 4 2 3 1 Wbiclt one nmQitg t.ht fo1J~wi11g is lllc most effe.::tivc $U'CngUtcni11!i meehunillm of non-ferrous tnelnl'/ :1. Solid solution ha
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<11.

b, Lignin tibres ln opatfte matti.'C 1:. CelluloAe libr"'-' in ~f'~lite m~tri.~ d. Cellu los.e lit'l'es in lignin matrix Which one of tho JoUowing is not a

b"'

-18.

~ernmic'l

<~+

.13,

Aluminl1

b. Porcelain c Whi•ker d, l}yTQ!Iil C'urt111g tool matt:rlal 18-4-1 HSS ha• which S.itions? ;o, l~o W. +•• Cr. 1 ~. V h, I Cr. 4•o W. 1% V c.. 189,• W. ~ 0 o Ni. l~o Y

sv..

#.

4\1,

d. I8"• ('..r, +~o Nl, 1°1> V Whoch one ot' the

lbllowmg elem.'D!s!alloy; ~>
.4JumiUIUOl

•L Sleet

-IS.

46.

\Vhicb '""tal ftrrming l)rocess is usi!2 n. D""J' dr:m•ing h. F•>r{ting c. Drawing 1L EShusion Wlu uf th< folio" ing is th" COJ-wct

n:ft-.dnry 3. l\{oJien meld is forc:-00 by pressure inlo

• mctollic mould 4. Allt.T t.:iooling. lhc invest is ra.m()vt:d t'rom lhe cnsbn3 by P'""~'m: jelling Pr Yibr.nory deaning t'odcij;

~tlltoment?

-H.

n. Jl..xtrusion "' used for iloe mnnulncJure of •earnld and tubt:l, b\ mtntintt eli"" which upou and clns~ l'llpidly on the \1 orl.. c. Extrus:on i& u~cd to improve totil!"c N$tslance of the met31 by ~euJng up compressiVe stre~~es on. its ~lufacc tl, 'El
14

d. Electto-hydr:mlic fonning Wh~l •re tltl: advAnlngtl< nr pii\Vtlc:r 1!1Cinlhtrgy'l 1. J!xtreme punt\• prQducl 2 Low L1bour oo ~Ling 13. Lm•<-:stm.t:nl casting. C. Snell moulding D. Contrifugol casting List-ll (Prmciple) I. 1'he mulal •olidifio• in o rololing monld 2. l'he paUem cluster ts repeatedly dipped into • ~e1';~mJc slurry and du•li:d wiU1

50.

C'

a,

.-\ 2

H I

3

D 4

b.

3

4

2

1

~

4

~

I

d.

3

4 J

2

4

C'on.~ider

Jlte following sl"3lemettts in o'
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\V11ich of the mtemen~ gi' eo correca·? :1, I nnd '2 on I)• b. t nml 3 on ty

~bow ~rc

S5.

I. Deoxidi~ins agent 2. Arc stobil!zmi agent 3. Slag lom•lng agent :>elect the con-e~ answer u.
c '2 •nd 3 only 1. 2 ond 3 Which of the lbllcnvins are employed in shell mouldin~? 1. Resin bindet" ,j,

51.

2. Mebl pallern

52.

3. Heating coils Select the c
d_ I

S6.

is made of !WJ.nd J . ooru is noode of ferrous metal Whicib tlne u'l' lbe f0Uu1~in!! is the com:ct t!latemenl? Gatcfs providcd rn mouldEW a. feed ll1e casting :11 a con•tnnt r>te b, give p~~sage to J!l11'"' c. compc:nsate f<1r slu"ink~gc c.. core

58.

fusio.n. 2. N u po'essure "' used. J O l\ysen t~ stored ill sto:c:l cylinder ~~ ~ pressure ofl4 lvl.P;~ us~

correct'/ Lland 3 h. 2. 3 nntl4 1:. 1. 3 a.nd 4 0. I. 2 •n!l-l

~. Wcldpool d. Molecules Consider lbo following s\l)lJlmcllls in respect Q!' the laser beom welding: I. It can be nsed lbr weldi11g ·'"Y met.a l or their contbinntlons because Qr Ve11' IUgb lompcralureuf tho focoJ points, · 2. IJoat affc~t.;d zo11e ls ''a)' IOC!;\O bccaus~ of quick heating. ~- Hi!!b 1·acuum is r"'luin:d to c:ury tlte process Which uf the statements!!""'" above islore

a, I and 2onl) b. 2 and 3 only c:. l only d. 1. 2 and" Which oftJ,e rolluwins crtl:<:l$ ~re I'O';~iblc due lo residual stresses in welding? I. Rcdlu)c Uimc~i<"'nl RU1bility

'2. \Veld crac.king

urrcel ''"

fniiguc ~trcnglh 4. Reduction in lh~ Cret:Jl Slrtmllth V

3.

~~ettylena

l:i~lo=cl

~

decided dtango in the appe:orance of fl•me. Which of tho sL1teotents ghen nhOI'd aro there is

In 1\UG welding. the metal is trnnsJ'c:m:d i11h> the fcmh CJf l•·hiclt une uf the

CQITCC.t1

d., avoid cavities

I . Wbuo ULcn> ;. an oxccss nr

3 fin\)

h. Mohc:o drops

57.

Conside:r the following •tntemcnLS In respect of ol\y·acetylene welding: l 't'be Joint is not heated lo a -~l•te of

ll11 d

following? a. A tln~~p1'11yofmet:ll

ln a centrlfugol cas!lng method tt no core i~ used b. ooro onay be madu of any mt:tal

53.

Tite coating moterl•l of an ~rc welding electrode coni:~ in• Whl\!h ofthe following'/

tlte

~rre~t illlS\1 Itt" u;; ing

tlte

~ode

giv~n bc.:low

a. llllld2on.ly b_ 2 md 3 on.t.}

c. .l 3nd 3 only d. .L 2.. 3 anti 4

"'

59.

During maebinill!\. c.~cc..il met.>l i•· rumoved in the form of chip WI in the CASt' of 11lming Vnn ~ )ath<:. Which CJI' the ro lliJwinl!, •re eone.:l'l

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Continuou~ ribbon 11 hen turning

like chip is fonned

M,

I :tla high e.- culling •pe.:d 2. at o tower cubii1J! ~peed 3 a brittle

a.

m~lcri:d

3 . u ductile mnteriol S~lect Ut~ ~orrect nnswo:r using giv.m bulow "" b. c.
liO.

62.

03.

~~~

cr,d<

1\5.

J ond 3 J Olld 4 2 and 3

2 ontf ~S.:n!W thrc•d.~ ore produced on $Oiid tocb hy using wbich ort'hc lb llowing1

.:. Mondr<'l cl Borin~ bat• Wlmt .is the proecs• of n:movin!l, met.u by • milling culler whi~h iR rotntcd llgain•rthe: direction c1f ll'llvcl of the wurk pi~cc. called? a, Do,,_ o .ruil.l.iug IJ, Upmilling c:.. End milling d. Face tniU1111t Wlticb o£ l.be jb Uowing mclhod$ ure go:ar gwcnuing prucesscs~ L Gcau baping 2. Genr bobbing 3. Gt.1r ntillins Select Ute correct onswct u>ing tho cvdc given beluw o. I. 2 and 3 b I ~n.t 21111 ly c, 2 oml J only cl, I and 3 on!Jc Amopg tlte following nudunln!! processes, which con be used for ttln~hin!ng fl~l sutfo='l

~().

67,

2. .Milling. J . Broacb:in.g Stkct the con-eel au•·Wcr using tl1~ code gin:n below

d. I. 2 ""11 3

b. I01•mtCLA) 0 I ,._m (C'J.A) t~nec from lhu ~utting edgd Wbiclt of' the foUawing nre the m•cl• im•\>ilhy criteno7 I fool rife 2. C'ulling forces ~- Surfoce fini~h Select the com:et nn.,ver il•ing tho code give.11 below

a. b. c. d. 68.

1.2and 3 I •nd 2 only I and 3 only 2 and 3 only

In Klrain s~uge dyn~momel<:rK. lhe UKC of

how many actJve

~ugcs

makes Jhe

dymunomct(!t man: cfft:o:tivc? il, Fouc b. nuee

J , Shopin@

n. !nnd 2 ort!J h. J ~nt13 ooJy c, 2 und 3 ou ly

HI 1~m !CI-A)

c,

' "" Dies b. Pllllt h

6L

8 "' 14

Honing P~c:ss giv"" ~IIJ'ra~e tinil
69.

"· Twu d. On~ For incr<:osin.[t the tnntcrial t"Cmuvnf rate in. tnm.ing. without ~ny wnR~'llint~. wh•l ill tho right se
I. Spa:tl

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70.

2. Feed 3. l)epth of cut Sqlcct the correct uns11er uslng ~1e code given below • . 1-2-3 h 2-.>--1 c:. 3- 2-1 d 1-3----2 C'on~ider the tbll(lwing slatemenlli in relatlnol to the unconventional macl1inin~

74.

Whiclt ooe af Lb~ following L< nol •

75.

purpose oflting

or

Jll'OCCMOS:

I Dill
ll• forec:tslin~r.

.1 . TI1c time horizon to forec:tSt depo:nds np
u,.,

71

b. 4 t:..

72.

(tAli.Ui
a.

42~nd 3

b. 1 and 2 only .:. 1 and 3 Only d, 2 and 3 only

CoiUidcr the following siJit.,mcnts; E.'
d. 6

L j5' ~• modificalton of moving a_'''-Ta.gc

\Vllich one of U1e following is .a cl..:amncc

method 2. i~ a wtcd averag" of past nh!!t:rv•tions 3. :sssigns the higltest weightaga t() the most r~nlob5ervation 4. W1ticlt of ibc sllllcmenls given <>bovc

tit'/

+II() IS +lll;)o)~ 'I

¢> H 51)

h St• +0 010

-1102S

Kl !)(>0

Ill! )1 <

h Sl) tlt)U llltr-s I 0000 •110115

II 511 •tll1311 +ili~IS

73.

2. Opinioo and judgm~ntlll forecasting molbe$ sornotirntlll incorpcmto

76.

5

14

a. Priinor_y texture 1.. Sooond:uyto:uure c. Lay d. f.l•w

What

i~

Ute dominant direction of the tool lllnrks or sl.\ratcbe> ill a ;,urfnce L(l!(IUtt; luovlng ~ dircctiotUJ qtmlity c.-.1Jtld'1

are eorTect1

l, 2 unJ 3 I lllHi 2 only 2 and 3 only lund 3 ~~~~) Consider lhe follo" ing $Ut·emento;

u. b. (:, d.

Sclledullng' 1. i~ a guternl nr.mufmuring,

timclJibJ~

2. i• !he time f>hase of lo•ding.

of

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trJ of 14

78.

~.

80.

3. i• lo"ling all lhe work in pro~e.$ on ma! given ,1~0\'C •re cor:roel? n. .!, land 3 b. 1 and 2 only c. 2 ~nd 3 only d. 1 ond 3 only [n an nssembly line. what f~ Ute balanec dOia)'! lL Lim: d'Jkicocy l 00 b. 100 · Line ol)jcicnc) (inperccntJtge) Line ~fficicocy c. JOO d. Non.: of Ute aboVe u· the li.xed cost of the assets fo• " given P"riod doubles. thou bu" much will lh<> break-even quapLiLy become'/ "· llnlfl.bo original ' 'alm: b. Sarno :t.._ thu origin-' I value ~. Twlcc llteot'igln.,l value d. Four timolltho urig,in•l volue Mot~ List • f II ith l~iJt ll and ~de.:tlhe

•.

82.

the pcoj~t in

84.

0 . C'ritical path method l.J. ~ 2 I d. 2 l 3 + Coll5idtr t.bo rollowmg slnt~ments;PERT OOWiidiX'S tl1C following timu ~

8L

e.
I.

t)ptimi~tic

time 2. Peuimistic: time 3, Mo~l like ly lime Whk h nf 1ho ·~lntemenls g•w 11 abo1•e 11rc correo::t'l

Jl

given time..durntion l"

c.alculated d. In Cl'i\ I cras hing is en out \Vltich t>f tile foll•1wing ttre Ihe benefit~ of lnvenlDI')' ·.:oou•ol'l l. hoprovemunl in customer's relaliooship. 2 Ecouonty in pllf<:lli!Sing. 3. Elimin>tion of lhc poasibility of duplicotc ordering. ScleQt the conect ~n lists : list-r A. PmcUI'I)O:teo l cost. B. CruTylng eost C. EconOmic order ~uaultt)' D. Roordl:f' point l.ist-11 I. Cost nrhCildin.g malcri3l$ 2 Cost ol' rccei' ing ordd' 1. J'rocllf<:ment leo~ time ~. B~tak-ewn •Miysis Codes: A B c .1) l'u tbt: HUQ mod"l. lf tli<: unit urtlot·ing ~usl Is doubled. theEOQ a. 1s hAlved b. 1$ doubled c. Increase,; l.~l4 l.im~ d. Decrease.~ 1.414 timo'

mod

ll~.

~orrett mlSWet tL10-in g

B. l''riLicaJ p~tb I'Eln activity

h. I and 2 unly c. 3 only d. I ;md 3 only Which one of tho folJ(lwing >l>llltn<'lll$ is not totreOV/ a. J>Ein is probabilislrc and CPM L• dete•·nunJstic:. b. In PERT. dVer1ts nrc us.:d nnd In CPI\•1 activities rue usc:d c. to CPJI.t the probobility to complete

U
1., 2 :md 3

85.

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II ut 1·1

86

a. of lc•s ~tan or e<1ulll 1o. t) pc h. of greater dtun t1t
Consider the followin!l ~l•tem<'tlUJ' I. lu (" l.onguagcr. hlllh dloto and do~ function Lhnt np..-alo nn lhot dolo arc combined into • 5inglc unit c:olled

d.. some- constrttints .:arc of less than c'lual

objuc1. :~00

a tOf"'''XI .hUiemenl

m C' ~ •,

although lhc met'!lc o< n<~ true \\'ho~h uflhc gllltcmC
92.

COn'o.:t?

"- lonh

87

b 20nl) c. Bolh I and 2 d l'>e~ther I nor 2 (he anlhmeb< o:.•pn:UKln 2.4.. ~ 0 "illl>e o:ompUicd b) lhc FORTR..-'-''l compila .s;

93.

... 2.4•2.4·2.~ b. 10' 01.. I O~j

b. 9

.:. c'" log c21 J. 2 -1•2..t•J.O 88.

89.

•)(I

Wbicll one of ~~e foUtmin& .ubroulinco doc& • computer inorlcmmiAIIOn vf llo~ 5implex o'toon• c. finding tho determinant ora R131l1X d. Finding tho cis•~• vnlue of • molrht Which om: of tho followons is not the chnroctcm tic ul' oc.:cpi311Ce "mphns'l a. 'llll' '' widely ~uotoble on mlL<~ ptoductiOII b. ll C3U51:3 less foliguc to u~Speclors .:.. Thl! i.; much economical 1L 11 11i\ Cj !lelinil<: a«ul'lln¢e fvo the confimn•liun uf ~'" spc~ilio41iun• foo •lithe pict'e' If m Ill the numl•er of contlnlml~ in a linear pn>gr3mmong \\otll t\\ 0 '~n>blcs ;1. and) aotd non-uegJtl\ ot) c~IUU'Iinu " 0.) ~ 0. lhc feasible o.:giun in the gr.Jphicol 50iuooon '"" 1M: •urroundcd b) how m•nJ lmes?

• b. c.
type and some of M••ater lh•n <:<1uol Ul.lype Which one of lhe folio\\ ing .:.>me:! lh~ whirling of !lufu'! a. Non-hollltlgcncity of.b.illllllllcnal b. 1\lliiliJ:ument ufbc.uing• c. FluctuJtioo of spctd d. lntemllltbmpmi! In order for • lrln:
2. Alnoosl '" Cl') com:ct slolcmcnt on C' i!

c. 15 d. 2 ~

<1-1.

(Tho •_vmbols h•yu Ute u~ual mCllning)

1. " ' n 2. • " ~i 1 3. xy 1 Which of tbo> •l.'lt=cnlll l!,iwn allo\,~ :u~ corro:t1 1

\\ hic:.h on<: nf ~1c: fnlh"''"-ll 11 1h1: .:nrrccl •llltcmcol7 In the ~13nd>rd f'nm1 ut a lint:ior P"' W'•tnrnitt!! [!rohlcon. all C0<1!tmint.o. arc

1 t 2~nd3

b. I ond 2 onl} c 2 ond 3 o>nl) ?S

d. 1 ond 3 unl) If ~Vt:r.JSC •rrh•l rnte on • •rueue '-' 6 hr, •nrl the 0\er.tgc ~Cf\ h:c: rntc i< tO hr. "hiob IItle of lh.: follo\\ ing ~ the "' mgc

number of emtomcn in lhc line. indudinJ the CU$Iomcr bemJ!

"""'C
• 03 b. 06 "·

m m - I m- 2 m-4

C'unJfitler lhc tolh"(ing bl~kmcnt., '11oe assognrnent probletn os seen to he the spocoal case of lhc lrilllSpoot.tion 111'0bkm in wluch

96.

11

d. 15 If the number of arrh11l• in • queue follows lhe Poisson distn1mtion. lhct1 the inter ..rival tim.: ob.:) > whicb on" of the foUowing Ji~tributions? 3 . Poisson ·s dJStribui.JOo b. Negative W
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c

97,

Nonmll di$\ribution

d. 13inominl Cl:mstdcr Ute lbllowittg. loll ower mQiicms ln respect of 11 given hfl. speed of rotnllon and Ofl2k or 51rokc ot' n com. I CycloidaJ mOiiC)n 2. Simple harmomc motion J . Umfunn vcloctly motmn Which one tlf the following Is the correct :;cqucnc<' of Lhc above in the llllSoondiog ordl.'r of maximum veloc-Ity'/

a,

b

I 02.

~2-1

b. 1-2-3 a. 1- 3 l

'18,

d 3-1-:! II' a % h~lix. wtj;le, und 1', = circular pitch: lhl.'n whiah one of lhe l'olloWin!! correcth• e.xpresses 1h~ a.~ml pitch ofn hcliculgenr'f a. p cosa b

c.

a. I and 2

I03

~

can tt d . p, sinq

1)9

I()()

I()I

111 u slider-bar mcchallisttt, 11hen does Lhe conncctlll£ nxl have zero ungulur wlcx:ity? a. When ernnk nngle = 0° b. When crank angle= 90° c. When crnnl nnglc - 45" c.l. Nc~cr Titc turning moment cllngrom for 11 $ingle cylinder double acting ~te1u11 tnginc consist> nr ~ vc and ·Yr:- loctr~ utt.we nnd bclo\\ ihc avoraga torgue line F11r tht +vc lnQp. the mtin of the SJ!CCd~ of the ny,~hc!~l nt the b~b'Tmting iUl~ lha und is whicb one of tile lbllowin~~ n Less than unit)• b e ,lUill tO 111111~ c. CMiter thun unity d. Zero Which one M the fitiiOiviflg i~ tht cw't'<'l!t Mat~nwnt?

l<> Jllcsltlng, gears with involutes _ge.r teeth. ll1e contnCI bc_gms at the intersection l•l· thu 11, Iin~ or net ion und th< nddendum c:in:lo lll'th~ drhun ge>~r

ncuon und the pitcb cirtlc or the driven gl)ar c. dedendum circle o[ dte driver gem: und the addendum circle t•f llte driveu Jl.ear d. addendum ccrcle of the drtvcr gear and the pitch crrclc ol'thedtivcn gear lmorfcn.:ncc l>ctwccn Ute teeth of 1\\0 meshing involutes gcur.s can be reduced or cwnimlled by: I increasing ll\C addendum of the gear teeth and correspondingly reducing· the addendum ot't11c pinion. 2. rcducmg the prcssur~ ungjc llf the tMh ofth~ meshingJ!eOrs. l inc:r~:tsiug, tho ccmre ~lstnuce. Whc~h t>t' the stnlcments jpvcn above rslnre \!orrect'.'

.JL ~OS(,(

lin~ ol

b. 2 1111113 c, I only d_ 3 only What is lire tlireCir1nr t>l' Ihe C11rk•lis compoJ>Cnl of accclernlloJ1 ro a slulleu levt:r·c:runk mechumsm'! a. Al!lng the sliding vtlucity vector b. Along the t.lim:tiort ofth~ cmuk c_ Along s hnc rotated WO .from the slidang velocily vector rn n drn.'CIIOn opposit" to the nngular 'elocny of !he sloll.:d lever d. Along n Jlne roWed oo• from the sliJing vcloc1ty 1 ecior en u din.--ction same as Ihot orthe angatlur vclllcit) of the >lotted le1
liJ I.

Raclus of rcbllon

~

The conlrolling force curves lor n springcontrolled !WYcrnor ore ~hown in the above ligure. Whrch curve reprcsems a stable gov~mor'! a. I h 2

c.

~

d 4

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105.

For a govcruor running at consumt spc~d. what is the value of the tbrcc acting on the

b. 0,5

"·d.

~lceve?

Zero b. Variable depending upon the Joad c. Maximum d. MTnimum What is tbc condition li>r dynamic balancing of a shaft-rotor system? 1L 1:M = OnmJ!F = Il b. t M 2 1) ~. 1: F = O d. EM•I:F=O IL

106.

A roll ing disc ol' radius ·r' and muss ·m· Is connected 10 one.: end of a linear spring of stiffness '"''·as shown in the above ligure. The nmural frequent)' of oscilla1ion is li\ivco by wlllch one of the follo\\ing'?

a.

2 1'1=~ 3m "

b.

ltJ~ {1:

z

c.

m-lf

"''"""' qan1
ll.

dorect C1lWlkS

I W = Weigh!

or reoiprocating

parts per

cylinder) For u. three-c) Iinder nulinl engine. !he prirnul) and I,!Jn:cl reverse crunk.~ ore as ~huwn in th" ubovc ligur~-s. Which one of lhe lbllowing pair> is nol corrcelly m(ltehcd in th is rcgnrd'! u. l'rimury IJirecl ft)fc"

JW

-· -m~ ,,.

11 1

112.

~"'""rse force

a. 513R.J. b, 1/.J1! r:. 3311 40 d. Ill 1\ m
11J =

111116

{1i: v-;20 wir~ ro[lll. No. 6 intlicnnes the

a. dinmeter of the wire rope i11 mm b. number of strand.< in 1h~ wir.: mre

'2g

..• Zel'll ~ Primary direct crank speed ... w d. J'rimal) te\'erse crank speetl ·-· 2•.u A untfonn bar. fsxed at on~ end carries n hen1•y ~onceutntted maJ,, nl the oth<.".r )'stem is executing longitudinnl vibml illnS. I he inert in of Ihe bar may be tal.cn iJilo a~connl h)' \Yhich one nf 1he following portions of tho mass of the har u1 the free end?

IL

vm

Primary

PrimarY

l ()'),

. k

3 2

l 08.

0.860

110.

11)7

h. Primal)

U.J

c. nunlben1f wire:. d. !:l'l"8" number 11f tbr:. wn·e Which one uf lhe liliii)Wing statement~ rdming 10 hell drives is corr.,.,l'! a. Thi: rolationnl ;-pc~ds of th~ pullc) >nrc ufreclly pruponionuJ 10 Iheir diluncterJ; b. 'rhe leneth of the crossed belt increases US the ~Uill. o( the diUniL'It!I'S the pult~'S im:reases .:. The cr(\llning of Lh~ pulleys is dMc 10 mukc the
or

113.

a.

b.

:21· mil F ndl

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14 u( II

o. Born A and R are individur~ly true 1llld ci

4F

or

ltd/

114. 118,

In the MmpouJul g_ertr ttnin

~hown

iu 1he

uhm•e ligure. ~cars A and C huve equal uumbel'll or te<>th und &~nrs B :md D hHI'~ c:quul nouubers uf 1ectlo . Wheu A ru1au:s olt 800 rpm, 0 f(IUtl£\! Ul 200 l]lnt Th~

1'(1t:lliona1 s p<:ed uf compound 1!,<'11J'S IK would then be 8, 300 rpm \1 , 400rpm

119.

.:. 500 mm d, 600 Jl)Ul 115.

I., 1!.

Under !l which vue ur the followin!J.'I a. Sliding conlsct b. !)lidm!l lllmlnVt. only rt)lhng ot. pi1eh poiol

117

is Uot correct explanation ofA. b. Both A und R ur~ indil·iduall) true but R ;,; ltOithe corn:d "'Phut8JIOU A. c. A •s true but R L~ false cl A is false bm R is true Assertflln (A): Orcotcr fon:e on Lbc plunger 1$ rc en!!ngc lbc cutting roots one by one lbr successive machlnin@. oper~uous. Rcast)n (It). Turret [q u mulllple 10nl bolder so Uml for suc~os~tv~ mnchlnJng opernuon, the 1ools needs no I b• th~og_~d a. 13Mb i\ ""d R arc indMdunlll 1me nnd R 1s the com:cl cxplnnoLion oi' A. b Ooth A nnd R ar~ individo1niLv true but R i~ nm Lbe correct cxpiiiDJltioo Qf A. c. A is tmc bm R is fulsc d A JS tillsc but R is true AMCrlion IAI: VJ,(uc cnginccl'ing il. u lcchlllq\'~ appli~d 10 compete on tbc marKet only ot lbe Lime of ullroducaiou of a 11rt\duc1 or Scf\•ice Reason fRl: lncreasurg the lim~uonal wonh of a producl appn:cmbly. kc'Cpmg the C-DSL OllllOSI COilSIOOL IS the real ubjeeuvco ofvalue en~ineerint:r a. Both A a11d R ore iudMdunll> true 1llld R 1!! llte ~orree~ o.\'jllanation orA. b. Both ;\ aod R an: lndivJdually true. but R k~ not the correcl c~planahtlfl of 1\. C'. A is true but R Is false tL A is false bUJ H is 1ruc R

2Jtdt

c. Rolling «HliU<1 d. Rolling nud ~llrung i1l cuch poipt of contact Assertion Ci\). For rlrillina C'dSt iron. tho lnul ~~provided willo n point angk ~mnllcr thun 1hat rcquirtd for a duc1ile illllterinl. l~cnson (R): Smalkr poinl nnglc r~~Uh• 111 lower rake nngk

120