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J.F: ..... (OB.I) !OOU I of 15

I .

2.

3.

4.

5.

MECHANICAL ENGINEERING

PAPER-II Euler's formula can be used for obruining crippli ng load for a M.S. column wrlh hinged ends. Which one of rhc foll owing cundirions for rhc ｳ ｬｲｮ､｣ｭｯ ｾｳ＠ rario 1/k ls robe sarisfied? a. 5 < Ilk < 8 b. 9 < 1/k < IS c. Ill < 1/k < 40

d. 1/k S SO

The kinematic chain shown in the above ligure is a

•• structure b. tuechanistt1 wilh one dcgrue of

freedom 4 mechanism wi th IWO degret-,; of

freedom tl. mechanism with more th>n two

､･ｧｾ･ｳ＠ of freedom A poinr on a I ink connecting a double slider crank wfl l ｴｲ｡｣･ｾ＠a. srraighr line b. circle c. parabola d. ellipse A whcd is rolli ng on • straight lcveltruok 1Vilh a unifonn velocity 'v'. The Instantaneous velocity of a poim on the wheel lying at rhe mid-point of a radius

, ,. a. va1·ies betw<.-eu 3- and - -

1 2 b. varies between v/2 and - v/2

v \• c. vnnes between 3-and -

2 2 d. does not vary is equal ro v A four-bar chain has a. alltuming pairs b. one naming pair and the others ar-e

ｾ ｬｩ､ｩｮｧ＠ pairs

6.

c. ｾ ｮ ･＠ slidi 11ll, pair and rh• olhl'rs are Luming pairs

d. ull 51iding pairs Which one of the following pair$ Is correctly matched? a. Beauchamp tower ; first experiments

on journal bearings b. Osbome Reynolds Anrifi·icrion

bearings c. Somonerfeld number: Pi1•ot and Coller

hearings d. Ball bearings Hydrodynamic

lubrication 7. Sensitiveness of a governor is defined as

8.

!1.

3. Range of speed 2 '< Mean speed 2 .-.; Mean speed

b. Range of speed

C, Mean ｾｦＩ･･､＠ " Range of speed_ Range o f speed

d. ｍ･Ｍｾ ｮ＠ speed

... .SOcm $

' • B,

Masses B 1• ｂ ｾ＠ and Q kg are atwchl!d to a shall in parallel planes as shown 1n rhe above ligure. If the shaft is rotaringar 100 rpm, rhc mass Bo is a. 3 kg b. 6 kg c. 9 kg d. 27 kg The equation of morion bra damped viscous vibmrion is 3x - 9x + 27x = 0

Tlte damping factor is 3. 0.25 b. 0.50 c. 0.75

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10.

II .

12.

)3.

d. 1.00 A mass is suspended al the bonom (>f two ｳｰｲｩ ｮ ｾ＠ in series having stifli1ess I 0 Nlnun and 5Nimm. The equivalent ｳ ｰ ｲｩ ｮｾ＠

slilliless oflhc 1Wu spring is ncnrly a. O.JN/ mm b. 3.3 Nlmm c. 5 N/nun d. 15 Nlmm 'fhe ' 'docity ratio in the t>.ase o f compound lrnin of wheel ｩｾ＠ ctjual to

No. oftcelh on fi rst driver a,

No of Ieeth on ht<1" lb ll ower

b.

d.

No. o f reelh on lasr follower No of teeth on fi rst· driver Pmclucl of teeth 1111 the drivers

ｐｲｯ､ｵｾｾ＠ of oeeth on the foll owers ｐｲｯ､ ｵ ｾｾ＠ of reeth on the foll owers l'roduct ol'teedt ou the drivel'S

A loaded semi-infini te llate plato is having "'' eUiptical hole tAla - 1) in U1c middk as shown in U11! Ｚｾ｢ｯｶ･＠ figure. The stress coo1oentrmion factors at poinl either X or V is a I h. 3

"' 5 d. 7

For the ｾｲ｡ ｣ｫ･ｴ＠ bolted as shown in the above ligu!'ll. l.he bolts will develop

14.

15.

16.

17.

18.

1 of 15 a. PrTmary !ensile stt'l!sses and secondary

shear stresses b. Prlomtr) shear stresses and secondary

shear stresses c. Prlmnry shear stresses and Sl'Wndary

lensi le ｓ ｬ ｲｾ ｳｳ･＠

d. Primnry tensile stresses and seoonJnry compressive stres ses

II scre.w lhread speci fie.d by M 20 • 2.5 (' as per Il lS ihread system means a. ｍ･ｴｲｩ ｾ＠ lhread of 10 mm nominal

diameter and 1.5 mm pitch having coarse tolerance

b. Metric thread of 20 mno root diametet and 2.5 pi1ch having ｾｯ｡ｲｳ｣＠ tulerauee

c:. Metric Uuo:-dd of line class having 2.0 mm root diameter aud 2.5 mm pitch

d. Metric ｬｨｲ･＼ｾ､＠ of 2() mm shunk diameter and 2.5 mm rnread depth with c-oarse-tolel'nnce

The koy shown in the above fig1ore ls11 a. Barth key b. Kennedy key c. Lewis key d. W oodrul'r key Which one of the ft•llowi ng stulemenlS whh regard to belt drives is NOT correct? a. Increase in the angle of wrap of the

belr enables more power transmission b. Maximum power is rransmined when

rhe centrifugal tension Is duee ｲｩｭｾｳ＠ｬ ｨｾ＠ tigjn ｾ ｩ､ｾ＠ tension

c. Wide and thin nell is ｰｲ･ｦ･ｭ｢ｬｾ＠ for btlner lifu than a thick and nam>W one

d. Crown is ｰｲｯ ｶ ｩ ､ｾ､＠ on the pulley to make lhe belt rtm centmlly on the i)UIIey

Augle of twist of a sball of a djameler 'd' is inversely pruportiunol to a d b. d1

c. d' d. d' Which one of the following sets of parameters should be onouilored lor

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determining safe operation of journal beurinl!? a. Oil wcssuru. bc:lring mclul

lempcrolure and bc:lring vibrulion b. Bearing vibmtion. nil pressure nnd

$pe<'<l of shall c. Bearing me1nl tempemllll'e tlnd oil

pressute d. Oil pressure um.l bearing vibralion

1 '1. ( Ｇｯ ｮｳｩ､ｾｲ＠ 1he lbllowing pairs ufpans: 1. Pai1• ol' gear in ｭ ｣ｾｨ＠2. Belt and pulley J . Cylinder and plshm 4. Cam and ｦｯｬｬｯｷｾｲ＠1\ mung !hose. the higher pairs ｡ｮｾ＠1L I and ·I b. ｬ｡ｮ､ ｾ＠

c, 1.2andJ d. l.land ｾ＠

20. Which one of rhe lbllowing sets of accelerations is involved in the motion of lhe piSI<In inside lhc C)'Jinder or a w1ilormly rotaling cylind« mt:rhanism'! n. Corio lis and radial ucc.:lerotfon b. Rutlial and 1>mgen1ial acceleru1ion ｾ Ｎ＠ Corio lis 11nd gyroscopi<; accelernlion d. Gyroscopic and tangcnlial accclcmtion

21. Consider the foiiO\,ing slalcmcllls: I. Rntmcl bar in u round hole forms a

t11ming pair. , A squnro har iu a square hole lorms n

slidil'\g [l!lir. 3. A venical sbafl in a fom-scep bearing

tbrrns a sueccssfid eo11srraim. Which of the scmcmcms nre ｣ｯｲｲ･｣ｴｾ＠IL l and3 b. I and 2 c. 2 and 3 d. 1,1and 3

22. ｃｯ ｮｳｩ､ｾｲ＠ che lilllowing P•lirs of cypes 111'

bearing' and ｡ｰｰｬｬ｣ｾｴｩｴｬｮｳＺ＠1. Pnrcinl Juumnl bearing : Rail wng<lll

n,,lcs 1. l'ull .lnumal ｬ Ｚｾ＼ＮＢｮｲｩｮｧ＠ : Oicsd cr]j;inc

crnnkshal1 J. Radial bcarin!! Combined radial and

nxinl Loads Which of lhcsc pain; /are concctly molchcd'l a. I alone b. I andl

,, L,),

J of I) c. 2nnd3 J. I, 1aud 3

T ｾＮＮＮ［＠ t;"A..,; .-!' ..,; ｾｾｾｾＮｾｾｾｾｾｾｾｾＮｾｾｾｾｾｾｾﾷ＠Mw ·- Hw

Consider the following :<latcm.:nl:> ｾｾＺｧ｡ｭｩｮｧ＠ ｴｨｾ＠ turning ｭｯｭｾｮ｣ ＮｴＮｬｩ｡ｧｲ ｵｭ＠ nf u reciprocating engine sbown 111 the abuYe Ggure Ｈｾ｣｡ ｬ ･＠ I em'= I 00 N.m) 1. II is a. fi>ur slroke IC engine 2. l'he ｣ｭｬｬｰ ｲ ｾｳｳｩｯｮ＠ ｓ ｴｮｬｾｾ＠ is ()• lu I g()' 3. mcancuming momenl T., = 580/rr N m 4. II is a multi-cyl1nde.r engine Which of 1hesc siHlemems are correct'.' a. 1. 2audJ h. I. 2 aud 4 c. 2. Jand .J d. ＱＮ Ｓ｡ｮ､ｾ＠

24. The pilcbing of n ship in lhe ocean is an oscillmory periodic motion. A ship is pilthing 6• atxwe an\! 6° beltm, with u period or lOs ti'om it,' h<Jriznn111l plane, Consider lhe fol lowing stalemoms iii lhis regurd: 1. The mdlion has u trequl.'nry t>f

osclllarion (i.e. pitching J of 3 cycles I minute.

2. H1e mo1ion has nn angular lrequency of 3. 14 rndls.

J. The angular vclocil)' Ill' precession of ships rotnr is ll"/3nn radls

.J. The amplituck ofpilehfng isa/30 rud Which of 1hc>e slatemcms are correct'! a. I 3lld 2 b. I. 1 and 4 c. 2. 3 and 4 d. 1.3and·1

25. The crilit:ul S(l\.'ed t'r a shuti is uJfel.'ll'cl b) the. a. ､ｩｴｭ｣ｾｴ･ｲ＠ und ｩｨｾ＠ eccemricity of ｴ ｨ ｾ＠

shaft b. spru1 and tbe eccemrici(y of the ｾｨ｡ｬｬ＠c. ､ｴ｡ｭ･ｴｾｲ＠ and ｴｨｾ＠ SP'.lll of ｴｨｾ＠ shall d. span tlf che shu fl

26. Mutch lis l I (Appl icutions) with lisl II (Joini5) :111d selectche oorrect answer:

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27

1 ist 1 A Roof girder B. Cylinder ｢ｾ､＠ of an rc engine t:. Piston rod and cross head 0 Soltd shnft und a pinto List II I. Hook· s joint 2. Stwewcd joint 3 Cotter joint ｾ Ｎ＠ Welded j\lnU 5 Riveted jotnt Codes:

A 0 C 0 a. 5 3 1 .\

h .\ 2 3 1 c. 5 2 3 4 d 4 J 5 ·nte following 11armm:tcr.; aru to he calculated while designing a screw juck 1 Cure ､ｩ｡ｭｾｴ･ｲ＠ of screw l . T urque required to rotate the ｳｾＧｉＧｉＡｗ＠3. Principal stresses ｾ Ｎ＠ Height of the nut The correct sequence or the calculation of these parameters is a. 1, 2..\.3 b. 1. 2, 3. 4 c. 2. I. ｾ Ｎ Ｔ＠

d. 2, 1, 4, 3 2N. Consider the following types of strc:ss<s in

ｲ･ｾｰ･｣ｾ＠ of a IHoi, ting tope during acceleration ofload: I Di rect str<.'SS due to wcigth hoisted nnd

weight of the rope 2 lkmli11g str.:sses due 111 hending, c)f

ｲ ｯｰｾ＠ over the shcaw J. ｓｴｲ｣ＺｳｳｾＧｓ＠ due to Initio! tightening ｾ Ｎ＠ Accclcrutiolt stresses Which ui' Otese urc the tle)rrect typcs of stresse-s induced in 11 hoisting rupc during accelcnuion of'load'1 lt 1. 2and b. 2. 3 ｡ｮ､ｾ＠c I Ｒ｡ｮ､ｾ＠d. L3 ｡ｮ､ｾ＠

29 Consider the fOllowing statements regurding a ｾ･ｮ ｴ ｲｩｦ ｵ ｧｬｬｬ＠ clmch; I It need rfot be unloaded betbre

engagement

I of 15 2. It ennbks tl le prime mtll er to stun up

under no-load conditions 3. it picks up lhe l<llld graduall y with th<

increase in spo:cd 4. It will not slip In the f)CHnt of

destruction 5. it is very us.:t'ul when the rmwcr unit

has jaw starung torque ｗｨｩｾｨ＠ of these arc the advwllages elf a ccnuifug;ll clutch? a. I, Zand4 b. 1, 3andS c. 2, 3 and 5 d. 1, 3, 4 und5

30. Match List J witl1 LIJ>'t IJ aud select tlte ｯｯｾ｣ ｴ＠ answer:

31.

List L A. Compoutld train B. Quick retum mech:u1ism C. buctstrrught li ne motion D. Approximate straight line mouon List II 1. 1-lart mc:chanism 2 Coriolis forw 3. Transmission or motion around bends

and comets 4. won ｭ ｾ｣ｨｮｮｩｳｭ＠Codes:

A B l' I)

8 . I 2 3 4 b. J 2 I 4 c. 3 4 I 2 d. t 4 ' ｾ＠ 2 Match L1st I (kinematic inversion>) witl l List II tnppllcatfons) nnd select the corred ｡ｮｳ ｷ･ ｲ ｾ＠

List I A.

ｾ＠ｂ Ｎ ｾ＠

｣ Ｎ ｾ＠

Ｐ Ｎ ｾ＠

Li>t II I. Hand pump

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1. Compressor 3. Whitworth qukk ret11m me<:hanism 4. Oscillating Cylinder Engine Codes:

A B C U ｾ＠ I 3 4 2 b. 2 -1 3 c. 2 3 -1 1 ｾ＠ I 4 3 2 Motch LiSL J (Applications) witlt Li• t ll (Feature« of vibration) •nd se.lect the corr ecl answer.::· List I A Vibration tamper B. Shock absot'btr C. Frahm mehometer D. Osc-illator L ist ll J Frequency of free vibrJlton 2. Forced vibrat ion 3. D::amplng ofvibronion ｾ Ｍ Tronsverseyibr•tion 5. AhllorptiC)n nl' vihr.ticm rodes;

ﾷｾ＠b.

13 3 1

c 2 ｾ＠

1)

I 2

c. 5 3 4 l d. 3 4 2 5 1\lntch list I (Keys) wiUo Li st U (("haracteristics) :tnd ｾ･ｬ･｣ｴ＠ lhe ｾ＾ ｲｲ･｣ｴ＠

ｾ Ｆｮ ｳｷｾ ［＠

List! A. Saddle key 13. ｗ ｯｾ ､ｲｵｦＮｦｫ ･ｹ＠

C. T:tn geul key D. K.nnody key Li.stU 1. Str=g, in $hear and crushing 1. Wilh.,ands ｬ ･ｮｾｩｯｮ＠ i.n one direction ｾ Ｎ＠ TransmL'ision of 1mwc:r chrnugh

liietional resistance +. Scmiciruular in 'bapc C'Jdes:

A D C D a.. 3 •I 2 b. e.

" 4

4

' _,

3 4

2 1 2

2

s 1>1 13 34. l'vla1ch Li<i I (i\pplic.11ion) with I tsl ll

(Drive element) and •elect the correct

35.

36.

ｾｈＱ ｓ ｜ｈＺＺｲ ［＠

List r A Aulomobllo ､ｩｊｊ･ｴｾＺｮｌｩｯｬ＠B. Bicycle C. Planing mochine D. ｒ｡､ｩ＼ｾｴｯ ｲ＠ fun of automobile l.isl ll I. Flot ｾ･ｬｬ＠'2. V-belt ·' · Chain drive ｾ Ｎ＠ Go:-.... dm•e Codes:

.-\ B a, 4 3 b. I 3 c,

d. 4 I

2 2

c

I

4

D 2 2 3

Mo tch List with list IJ and select the CQrrect ｡ｮｾｷ･ｲ Ｚ＠

Lisll A. Unwin's formula B. W nhl lllctor C. Reynolds equation D. Lew ｩｾ＠ fonn f3ctor Li$1 II I. Bearings 2. Rivets ...,_ Ge-ars 4. Springs Code.:

A B l' 0 ｾ＠ I 4 2 3 b. l 3 I 4

c. 1 3 2 4 d. 2 4 1 3 In an onhogouaJ cutting test, the eutting force :md thru st force Wet"C observed l o be 1000 N and 50() N respectively, l f the mke anglo of tool is zero. ｾｴ ･＠ coefficient of frlclioo in chip-tool interl''ooc will be • . JJ2 b. 2 c. Ll ../2 d . ..fi •n,. magnitude of t.l>c cutJ ing speed for maximum profit rate must be a. in ｢･ｴｷｾＧ＠ lite speeds tor minimum

co•t ami mn.ximum production mtc

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b. higher tl1an lhe spo.'Cd for mn.ximum production rnte

c. below the speed. fM minimum cns1 d. ･ｱｵｾ ｊ＠ to Ole Speed for minim\lm oost

311. ＱＱＱｾ＠ ｳｾｱｵＮＺＮＱ｣･＠ of mnrltJn!l$ "S 14K 14 S .. on a grinding wbccJ rcpruscnl\-rcspectively n. bond type, strucl\l re. grade·. grnin •i1.e

'ltld ahr.asive type h nbmsive type, g.-ain size. g1'"de.

strucluN md bond I) pc "· bond typo, ｧｲ｡､ｾＮ＠ atrncture, grain size

and abr.:a.sive lype cl, abrasive t.>1>e , structure, grude. gmiJ1

size and bond type ｾＹ Ｎ＠ In • l<>ol li fe tL:llt.. doubling the .:uujng

speed 1'<!duccs the l<.>ol iife tO l /S th of I he original. The Taylor'• tool lit\: index i<l (1, 1'2 b. ｉ ｾ＠

c.. 114

d. 118 40. Matclt List 1 ( Ｑ Ｇ ｾ＠ of ¢<1>Ung) w itlt J lsliJ

(Working principles) nnd select l11e corr"'" anS"wer: A. Die ca<ting a. Centrifugal c.'li!ting C. C<ntrifuging D. ContinuOliS =•tins r ist 11 I. Molten mc(;IJ is forced Into lite di¢

under pressure 2. ...\..'\.-is of rotnt1 oo docs not coincide w'iU l

axis of mould 3. Metal solidifies when mould is rotating 4·, C'ontinuouslv pouring molten metal

into mould ｃ ｯｸｬ｣Ｎ ｾ Ｚ＠

A 13 C D

"· 1 2 3 ｾ＠b. 4 .3 2 I ｾ＠ 1 2 3 4 d. 4 2 3

ｾ＠ l. C:on•ider the following statements: fn «leelrochemt.:.11 gnndmg. I. il rubber ｢ｯｮ､ｾ､＠ alumina grinding

wheel llcl' os tho Cllthode oud U1c wo1·kpiece ｡ ｾ＠ lhc unodc

2 11 .:t1pper bonded ｡ｬｵｴｮｩｮＺｾ＠ grind.iug whet:! acts as ｴｨ ｾ＠ ｣ Ｚｾｬｨ ＼ ､･＠ ;md the ｷｮ Ｑ ﾷｾｰｩ ｣｣ｯ＠ as the anode

6ui iS -'· met.31 rernovol bkcs place due to the

pre$sure applied b) the grinding wheel 4. ｭ ･ ｴ ｾ ｬ＠ romoval takes place due to

｣ｬ｣ｴｬｭｬｹｾｩ＠

\Vhicb of th..:sc .s tatem unb ｾｲ｣＠ corn."'Q t1! o. I oud 3 b. 1 and 4 c. 2 and 3 d. 1 nnd 4

-12. In the rolling process. roll !epnnting foroe can be decreased b. a. ｲｯ､ｵ ｾＮｩｮｓ＠ rhc ｭｬｬｲｬ ｩ ｡ｭ･ｾ｣ｲ＠

b. incroasinJ! the rnll diameter c. providing back-up t'olls d. it1croasiug the friction ｢･ｴｷｾｮ＠ tbc

rolls a.nd the mew! -13. Consider ll1e followin g statemenlS<

In forwnrd e:<tn1soon proc.,., I. the ram and the .:xtrudeJ protl11ct lrnVCI

in the same direction 2. the rnm and tbc c:<tnt([()(iJ/fOduct U11\'d

in tltc opposite direction 3. the speed of tnl\·d qf tlu> extruded

pr<>dtiCI tl ｾＳ ｭ･＠ Ill that (lr !he r;Jm 4. the speed 111 t.rnvd of tho ｾｾｵ ﾷ ｵ､ ･､＠

ｰ ｲｯ ｾｵ ＮＺｴ＠ ill JlfCl!tcr than tl1llt of the rom Which of these ｳ ｬｯｬｾｭ｣ｵｴｳ＠ "'" cm'r<ld? •· laud3 b. 2 and 3 c. 1 a.nd 'l ol. 2 nnd 4

44. Which ()ne of tl1e followinj! lubri"'mts is must s\lol;!hl<! for dr:1wi otg llliliJ steel wires'! • Sodium stearate b. \VJtor c. Litue-watcl' d. Keroll(.11c

45. Which one of l11c foll owing >latemcnts is c.orrec tiJ

a. }llq flux is u•ed in gas welding of mild steel

b. Bornx i$ the commonly Wltd ｏｵＮｾ＠

｣ｯ ｾｴｩｮｧ＠ ou 1\dlding electrodes c, Laser ｨ ･Ｚｾｭ＠ weldins employs a

vocuum ｣ｨｭｾ･ｲ＠ nod lhw. 3voids use of o .<hielding method

d. A<' can be uJ>col torGTAW prvCI:ss -16. B.:st position (}!' crnnk tor blanking

opcr-alion ln :a mcduutic.a I ptCS!:I is a. lop dead cunlro b. 20 degrees below top dead centro

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47

49.

50.

c. 20 degrees before bottom de3d centre <1. Hortorn dead centre !\ latch List I Ｈ ｰｲ ｯ｣･ｾｳＩ＠ with L.isl II Ｈ ｰ ｲｯ､ ｵ ｣ｴｾ ｬ ｭ｡ ｬｯＺｲｩ ｡ ｢Ｉ＠ and select the .:orrect answer: List l A Dlo cast in£ B. Shell molding C. COz molding LJ. Centrifuga l casting 1.i11 n I. Phenol formaldehyde 2. C.!. pipes 3. Non-ferrous alloys 4. Sodium .sJlicntd Codes:

.\ B C D

•• b. 3

3

_, 2 2 4

d. , 2 4 Which one of the l'ollmving sels of tools or tools and processes are nom1all y employed for n"llcing ｬ ｡ｲｧｾ＠ dituncl.-r holds'/

"· Boring tool h. lH A tool (Borin1] ｾｮ､＠ ｴ ｲ ＼Ｚ ｰ ｡ ｭ ｴ ｩｮ ｾ＠

as•ocintlon) and gun dri ll c. Gtm drill tlnd hoti ng cool II Boring toll :rnd ll'llpanning Which one of the ｦｯ ｬｬ ｯ｜｜ｾ ｮ ｧ＠ processes ol' gear manufncturu r0 uHs- in bt:St ll CCuracy of the involutos gear tooth prolilc'/

a. Mi lli ng h. ll ohbing c. Rot1ry ｧ･ ｮ ｲ ｾ ｨ ｡ｰ ･＠

d. ｒｮ ｾｫ＠ t)lpe gear shapcr One Qf the mdcx plat"'i of a millin g muchjn<.: dividing beau ll llll the lil ll i>w ittg hole circiCI!: 15 : 16 : 17 : 18 : 19:211 A ge>r wheel ｯｦ Ｓ ｾ＠ t¢<:th has to l>e mill ed by ｾｩ ｭｰｬ ｯ＠ indexing method, ·ro muchine ｾ｡＼ｬ｢＠ toollt . TitC Wdei! L'fank bO$ tO he I'Ototed lllrougb a. 17 bOld' in the 20-bole cirole b. ｉｾ＠ boles In the 10-holes cird e a. 1 revo luti nn and 3 hol es in -.?-hol e-

circle d. 1 revolution and 2 holes in I 8-hole

..:irclt)

Sl.

52.

54.

55.

7 ul IS Wlticll one of the following loleronocs set on inn<!r diameter fi nd <Hiler diameter respectiVely <lf headed dig hush for prei<s tit is corn:J:t? a. G 7h6 b. r 7 n6 c. H 7 h6 d. F 7 j6 M•lch l.ist I (Components of a tlble fan) with List U (NfanuJitcluriug pm"csS<!s) aud select the \!O fi' CCL3nsw t:r :

List I A. Bose willu tond B. Bltule C. Annature coil wire 1) . Annatnreshatl l.i slll I , Stamping and pressing 2 Wire drawing 3. Tutning 4 . Caslin!! Codes;

•• b.

c. d.

A 4 2 2 ｾ＠

13 3

3 I

c 2 4 4 2

D 1

1

-· Crater wenr starts at some distance from the tO(> I li p b<C<JIISC

il . Cutting lllll d cnnoQt pe-netrate tltal ｲ ｴＮｾ ｩ ｯ ｮ＠

b. Str CJ!C On t-nkc: f:1cc is m:tximunt ul the region

c. tJ'oo l fi treugih s minimum at that regio n d. Too l tem peratur e IS mas ituum al thal

t'<:gion Consider ｴｬｴ ｾ＠ foUowing tuo l ｷ ｮ ｬ ｾｊ ｵ ｬｳ Ｚ＠

I. uss 2. Cemented en> ｢ ｩｾ ｣＠

3. C er:t m ics 4, Di:nntlnd The correct seq uence of lheRe· rnater1n.ls in ､ ｣｣ｲｯ ｡ｾ ｩ ｮ ｧ＠ Qrder ｮｦ ｴ ｨ ･ｩｾ＠ cutting •11eed ｩｾ＠a. 4. 3, l. 2 b. .!. 3. 2, I c.. 3, .[, 2. l d. 3, 4. L 2

Cousidct· Ute ft1ll owiug II"'""'"'' " L CiJis weldi11g 2. Tltennil welding

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S6.

57.

58.

3. Arc welding ｾ Ｍ Resistnnce welding l'he correct ｾ･ ｱｵ･ｮ ｣･＠ of Ulese processes 1n increasing order of ｾｴ･ｩｲ＠ ｷｾ ｬ ､ｩｮｧ＠

l<nnpcrnturt is n. 1. 3. 4. 2. b. !. 2. 3. 4 c. 4. 3, I. 2 d. 4. I. :l, 2 l'v!Jlteh Lilli I wllh Li ; t II and Ｎ ｾ･ｬ･｣ｴ＠ the correc t answer: 1.-istl A. Quick return mcdl"nism B. Apron mcchan.lsm C. lndll.'ting mcQhnnism D. Re>gulnting. wbcol ListU I , Lnlhe 2. Milli n,!! mach me ' ·'· Shnper 4 Centre less grinding t'odes:

A B t'

•• 3 2 b. 2 3 4

"- 4 2 3

D 4

d. J 2 4 Consid<:r th<! following chnracteristic:o of • robot; I. The I ip of the robot amt moves li'om

one poittl ro another wilb it's In b-.:1\\oon path nol being ､ｩ｡ｦｭｾ､Ｎ＠

2. it can bo used for drilling holts at different points in a work piece.

3. It eM be used for V bull joint welding between two poiLtts.

4.. 'll te memory copa.,ity required for ｩｌｾ＠conttol unit is low. \VIticb of tl ttsc arc lhe ｣ｨ Ｓｲ｡｣ｴ･ｲ ｩｾｬ ｩ ｾ＠ ｊｾｯ｣ｩ｡ｴ･､＠ -with a point to point robot1

:1, 1 3nd 2 b. ｌＳｾｮ､Ｔ＠c. l . 2 ond 4 d. 2. 3 J.nd 4 Mnlcb Li•t 1 (Components used in jigs und ｦｾｸｴｵｲ･ｳＩ＠ with l.,ist U (Thatr functions) and select the correct ｾｮｳｷ･ｲ＠J..isrl A. Jack pin B. V -locator

59.

60.

61.

C. Bushes D. Ejectors LisliJ

8 of 15

l . To guide the drill bit duting machining 2 l'or easy removal of the work piece

from th" j ig or ｦｌｾｴｵｲ｣＠ 11ller the machining. ｯｰ｣ｲＺｾＮｴｩｯｮ＠ is oYc.r

3. To locale the creular or samidrc.ular objects in "jig or lh-ture

4. To locate '">rk piee"" whose tlicu cnsiQns ［ｾｲ｣＠ subject to ｶ｡ｲｩｴｾ ｬ ｩｯ ｮ ｾ＠

ｃ｢､･ｳｾ＠

A 0 C D

•• 3 4 l 2 b. 3 4 2 c. 4 ｾ＠, I ｾ＠

d. 4 3 2 Match Li•L I (Scientist) wi th List II (Researeh woti.:) and select the conlll:l

answer; Listl A. Schcw:ut B. Tagucbi C. Erlnng List II 1 L""s fwtclton in qualitv 2. Quening model 3. Zero ､｣ｦ･ｾｴ＠4. Control charts C<><lc•:

A 0 c •• 3 1 2 b. ｾ＠ 3 1 c. 4 1 2 d.. 3 4 The mnnogemcnl 1• interested ｴｾ＠ know tho; t>ercontage (If idle time of equipment. '11te trinl study showed that pcrcon!Dgc M idle time would be ＲＰｾＧＧ ﾷ＠ 11te number of random observnbons nec<'l;S:Jt')' for 9S0o lc\ei <Jfconfid"'l. cc and± 5•o accurocy b a. MQ(l

b. 1600 ｾＮ＠ 640 d. 160 Which one of tho following IS NOT n leohn ique of PI\ I I'S'I 1. S)"tthetic dnta 2 Slop-watch t.ime s1udy 3. Work ｦｾ｣Ｑ＼Ｑｲ＠

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4. MfM 62. Rowon Incentive pion is glven by IR

ｈ ｯ ｵｲｩｾ＠ rotc, T Acmal lime; wkcn l11r job. T, = Slanda1u time for job T, = Sl11n<la• <I Lime lor jnh aud 11- Ellming•)

1T T) £ = fl T 1

• • T fl • T •

l'he shape or the curves between bonus eurne<l oud ＩｘＧｴＢ･ｮｴ｡ｧｾ＠ Lin•eso\led is " •· Stroight Line b. Parnbola c. ｈｯｲｩｺｯｮ ｴ ｾｊ＠ lino (1. ｖ･ｲｴｩ｣ｾ Ａ＠ line

63. Lut year. a manotllcturer rwuduced 15000 pn)tl\•ct• ｷ ｨ ｩｬｾ＠ wo:re w ill R.•. ｾＱＱＰ＠ ench ,\t that volume. the fixw CO$ts wen: Rs. 1:5.2 1•_,. aJ.td lotol v•rill bfo .;oslo were R•.21 ｬ ｾ｣ｳ Ｎ＠ 11te break won IJU•nlity of produ.:t Wf>llld be •. 4000 1!. 7SOO .:. 8400 d. 9500

64. Cons iucr lbo followine statement> rcg:udlng plant location and ... pkmt layout: 1. Qualitative factor "llnlysis i• o method

of e\Olluating a poteutial location "itl10ut npplyiug quanlibtiw volu<'S to tlt c decision criteria .

2. l11c lluc" dctcnuinnnts of tl1e type of layout are type ,.r product, type or j) l'ocess and tlte volume of production,

3. i\n ｯｰ ｰｬｩｮｾｴ｣ ･＠ manufac(luing )l13nl wltere lli 'Oduc.tS nrc made on llSSetnbly lines wo1dd be clas.l.fied M job shop type of layonl

ｗ ｨｩ ｾ ｨ＠ ol' tlu:se stOtt<:menL< isl•re ｣ｯｲｲｾ｣ｴ＿＠a. 1,2trnd3 b. I ond 2 c. 2 anole d. 3 ｡ ｬ ｯｮｾ＠

65. Routill£ In production plnnning and control refers to the a. Ba lnncing ofload on mach10es b. Aulhonzotwn of wr,rd to be pon<lnned c. Progrc-. ol'work perli'nmed II . Scqu""co M ()pcr.lli Ons to he

porfoJ'mod 66. Motoh Li<t I witb Li st U lind sel ect t.ho

corrt."Cl :mswm : L.ist I

67,

68.

69.

'l nt IS A. Control cluuu for ' 'urinhles B. Control ｾ ｨ ｾ ｲｴ＠ for number of non-

cont'onnities C. Control chart for ti-J<!llon rejecle<l D. Activi ty lime distribution in PERT Codes:

•• b. c. d.

A 3 5

4

B

4

3 4

c I 3 l

D

J 2 2

Which one of the following statements is NOT C01Tei!t? a. Assignment model is a special case of

a lin\!.llt progn:a.mmlu_g probll!lil b. ln queuing .models. Poisson arrivaLs

and exponential sen-ices -are asst1med c. ln lransportalion probten ... the non-

Sl(Ua.J e mallix is mad e square bv adding a dummy row or a dumntY tolumn ·

d. In line:tt pr<>grAmming pn>blems, thml oF11 du•l is a primal

ｃｯ ｮ ｾｬ､･ｲ＠ the lniJO\• ing st:ltcmen(s: l. A linoor progrumming wohlem wi th

throe VbriabiC'I nod two con.•troinls c.1n he solved b)• graphical method.

'2. For sohu1ons of a linear prognamming prnhlcm 1\'i th mixed COMtruinls. ｾｩｧＮﾭM·IIIOthod can bo. ･ｭｰｬｯｹ･＼ｾＮ＠

3. fu the soluti()n ｾ ｲｯ｣｣ｳｳ＠ or • linear pn>gronun1llg problem usinJ!. Big·M· method, when an ortitkial variahlt: lc•\'e$ the ｢ｮＮｩＮｾ Ｎ＠ l} te oolumn or tbe ••tifi oiol v•.riobk CJJn be removed from ｾ ｬｬ ｳｵ｢ｯ･ｱｵ･ｮｴ＠ table>.

Which of these• statements Me corret:t'l ｾ Ｎ＠ I. 2 aod ｾ＠h. I and 2 c. l and 3 d. hnd 3 Arr iv• ls .tt • telephone ｾ＼ Ｉ ｯｴ ｨ＠ •re con;-ldered b• Poisson wi Ut .,, a\ or:tge time of t() minutes between one ｭＧｩｶｾｬ＠and the nexi. 'l11e lenQ.th ill' n phone c,,ll is lll!sumcd t11 he di• tributed "''JlOne.ntiaUy with " mulltl of 3 minutes. Tbe probability Lhat -a penon arr i-ving. at the booth will hove to waiL is • . Ｐ Ｌ ＱＱＴｾ＠

b. 0.300

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70.

71.

72.

(!, 0.429

d. 0,700 Dummy uclivi ties are used iu 1.1 1aetwork lo a, ｆ｡｣ｩｬｩｴｾｴｴ･＠ computatiot• of slacks b. Satisl)-precedence requiremeniS c. Determine project completion time d. Avoid use of resources If earliest stnning t·ime for nn nctivily is 8 weeks, the Ia! est finish time is 3 7 weeks and the duration time of !he activity is II W'-"!kS, tlten the toial fiORt i• equal tl) a. 111 weeks b. 14 weeks c. 56 weeks d. 40 weeks Consider the l<>ll owing llow chat:

The printed value among X, Y m•d Z by the computer w111 be a. Tite highest b. Tite middle c, The lowest d. ｎｯｮｾ＠ of the above

73. match List I with List II and sele<.'f die co rrec t answer: List I A. RAM B. ROM C. DOS D. LAN Lisl II 1. Network of computers 2. Software which makes the ｾｯｭｰｵ ｴ ･ｲ＠

work 3. Memory used for processing ｾ Ｎ＠ Memory In which user cannot 1vritc

anylhing ｃｯ､･Ｎｾｾ＠

A B c D 8. I 2 3 4 b, 3 4 2 c. 2 3 4 d. J 4 2

74.

15.

76.

10 or 15 A productfon system hilS a product ｴｹｰｾ＠ of layout in which there are four machmes laid in .series. Each machine does a ｳ･ ｰ｡ｲ｡ｴｾ＠ operation. Every prod.uct needsull the four operations lo ｢ｾ＠ earned out. 1 he designed capacity of e>>ch of the four muebines is 200, 175, 160 and :!10 produciS per doy. TI>e system capacity would be a. 210 pmducts per duy

b. 200 produciS per day c. 175 products 1>er day d. 160 products per da) Match List I (End conditions of columns) with List ll (Equivalent length in terms of letJ.gth of hiuged-binged column) and sel!!ct the- oorrcct answer : ｌｩ ｾ ｴｬ＠

A. Botl1 cuds hinged B. One end fixed and other end free C. One end fixed and lhe other pin-jointed D. Both ends fixed List 11 I. L 2. J2 L

3. 1 / 2 4. 2 L Codes:

3 ..

b.

"· d.

i \

1 I J 3

Match List

B 3

3 I I with

correct answer: List I

c D 4 2 2 4 2 4

-1 2 List ll and selecl

A. Bending momenr is constant·

lhe

B. Bending moment is mn xi mum or minimum

C. Bending moment is zero D. Loading is constant List II 1. Point of contra flexure 2. Shear force changes sing .3. slope of shear Ioree diagram is zero

over the portion or the beam 4 . .shear foroe is zem over the portion of

the beam Codes:

A B C D

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77.

78.

79.

80.

a. 4 2 3 h. 3 2 4 c.

"" ,

3 d. 3 1 4

II'

1 f i>-L 21. f 1--t

A loaded beam is shown in the above tigure. J'he bo:nding lnomcnl diagmm of the beam is best rl! presenled as a.

b.

c. 1\ vv

d.

At a certain section at a distance ﾷｸ ｾ＠ li·om one of lhe suppons of a simply suppo•ied beam. the intensily or loading. bending moment and shear Ioree are W ,. M" and V, ｲ･ｳ ｰ ･｣ｴｩｶ･ Ａ ｾＮ＠ if ｾｯ･＠ intensit}' of loading is vuryi.ng continuously along 1ho length of the b"am. the invalid rc.Jation is u. Slope Q, - M, ! V, b. v, = d M, / dx c. W, = d2M, I dx' d. W, = dV, I dx Plane s1ress at a poinl in a body is delined hy principal stresse.• 3cr andcr. llle ration of the nunnal Slrcss Ill 01• maximum shear stress of Lhe plane 1,)1' mnximwn shear ｓ ｬｲｃ ｓｾ＠ is 3.

b. 2 c. 3 d. 4 Which 11ne of the fo ll owing Mohr's circles reproscnts I he stale of pure shear'/ a.

.b.

d.

v· .-q: -$-· =$:.

II ol 15

R I. l'hc state of plane >tress in a plate Clf I 00 mm Lhickncss is given as

u u = I OON l mm' . o., =lOON l mm'

Young's modules = 300 N/mm' Poisson's ration = 0.3 The srress developed in lhe direcllon of ｾｨ ｩ ｣ｫ ｮ ･ｳｳ＠ is a. Ｑ Ｎ ｾ ＱＧＨ＾＠

b. 9U N/mm1

c. 100 N/mm1

d. 200 Nfmnl 82. ｃｍｳ ｩ ､ｾ ｲ＠ lh!! tolli)\Ving IOOIS;

I. lligh carbon steel tools 2. I ligh speed stccll ol)b 3. Ceramic 10ols 4. Carbide tools Which uf these 100b an: provWcd with negative mke ang le'? a. I nnd 2 b. 2 and 3 c. I and 3 d. 3 and 4

83. A rod of lill! terial with E. - 20() ' I o' Ml'a and a = I 0'3 nunfmm"C is tixed at bo01 lhc ends. II is unilonnly heated ｾｵ･ｨ＠ thai U1e increase in lempernturc i.s. 3o•c. The stress develuped in ｾ Ｑ･＠ rod is a. 6000 N/nu112 (!ensile) b. 6000 N'/nun2 (compressive) c. 2000 Nfnun1 (teosilel d. 200(J N/nuu1 (compressive)

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84.

85.

86.

87.

88.

1\ circular solid shatl is subjocled lo a ｢ｾ ｮ ､ｩ ｮ ｧ＠ momenl of 400 kN.m and o twisting ｭｯｭｾｮｴ＠ of 300 kN.m. On the basis or lhe max imum principal, stress lheory. the direcl stress is o ｾｮ､＠ ac.cording lo lhe maximum shear stress theory. lhe ｳｨｾ｡ｲ＠ stress is r. The mtio a/t alL is a. l/5 b. 319 c. 9/5 d. 11 /6

llte two cantikvcrs A and B sho\\11 in the above figure have the same unifQ nn cr<..l$$-section and: the same material. Free end defleccion of cantilever 'A • is o. The value of mid-span dd1ection nf the cantilever ·a· Is

.... ... ,_ A li nk is under n pull which lies, on one of the faces as shown in the above figure. The Jnaguilude or ma.ximum compressive stress in ｴ ｨ ｾ＠ line would be 1L 21.3 N/Jtun.' b. l6.0 N/nuu' c. 10.7N/ntl111

d. zeru Two coiled spring,,, each having stiffuess K. Me placed in parnllel. The stin'ness of cl1o COIUbinaliou will be a. 4K b. 2K c. K/2 d. K/4 A long slender bar having unifonn recmngular cross- section ·B • II ' is acted upon by an 3)(ial compressive force. The ｾｬｩ､･ｳ＠ B and H are rarall clto ｾＭ and )'·3Xes respcct·ively, The ond5 ol' the har are fixed

8'1.

')().

1)1,

\)],

I)J.

1 ｾｯ ｲ＠ 15 such that they behave 6 pin-jointt'ti when the bar buckles ｩｮｾ＠ plane normal to x-axts. and they ｾｨ｡ ｶ･＠ as built-in when the bar buckles in a plane Mrmalt<l y-axis. If load capacity in either mode of buckling is same. the value ofii /B wi ll be a. 2 h. 4 c. 8 d. 16 The property by which an ammmt ul' energy is nbsorbcd by n material withnul plastic deforuuu.ioll, is called a. toughness b. impact strength c. duccilicy tl. resilience ｗ ｨ ｾｮ＠ 11 weight of I()() N falls on 11 spring of sliA'ncss I kN/m from a heigh! o r 2m, the deflection c.wsed in the f'i rsc fil ii is a. equal to O.lm h. h<:tween U.l lo 0.2 m c. ｾｱｵ｡ ｬ＠ tn 0.2 m d. m!'re than tl.'2 m Which one ol' che lollowing_ features imprOWS the fatigue Strength Of II metall ic material? o. Increasing the temperat11re b. Scracching the surface c. Overstressing d. Under stressing. ｃ･ Ｎ ｲｭ･ｴｾ＠ are :l. ｭ･ｴ｡ｬｾ＠ for high tompennure ｵｳｾ＠ With

ｷｲ｡ｭｩｾ＠ ｬｩｾ･＠ ｰ ｭｊＩｃｲ ｴ ｩ｣ｾ＠

b. t,cramics with mcltlllic scn:ngch nnJ luster

c. Coaled tool. materials d. ｭｾｲ｡ｬﾷ｣ Ｎ ｣ｲ｡ｭｩｴ＠ ｣ ｯ ｭｰ ｯｳｩｴｾｳ＠

Pcrccnwgcs o>f various all,>ylng ｾ ｬ ･ｭ･ｮｾｓ＠

present in clitlerent ｳｴｾ･ ｬ＠ materials are given below: I. IR% W;4%Cr: 1% V;5%<.:o:0.7%C l. 8% Mn: 4% Cr; 2% V: 6% W: U. 7% <.: 3. 27% Cr. 3% Ni; 5% Mo: 0.25% C 4. 18% Cr. 8% Ni: 0.15% C Which uf these relate to chat of high ｓｊＱｃ Ｍ ｾ､＠

sccei? a. I anti J b. I antl1 c. 2 and 3 d. 2 and -1

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A thin cylinder ｣ ｯｮｾ ｬｮｳ＠ lluid ol 3 prl:llsure of 500 Ntm'. ｾＱ ･＠ Internal di:m\eter of th" ｾｨ･ ｬｬ＠ is Q.(i m and the t<:nsilc stres• in U1c 111oterinl is to be lintitcd tcl9()00 ｎｬ ｭ ｾ Ｎ＠ Tile shell must h:ove o minimucn w:cll lhickn""' nf nc:arly a. 9 111111

h. I l 01111

C. 17 lUJJI

d. 21 JIUD

95. Fmm o tcusion ll:st, the yield •,treuglh of steel is ＱＭｾｬｭ､＠ to he 200 ｾ ｬ ｮｵｮ ﾷ Ｌ＠ Using ｾ＠factor or ｳ ｡ｦ･ｴｾ ﾷ＠ of 2 and applying maximum principal 6tres• lhoory of fai lure-. Lbc p<:tmis•iblo strtss in tho stocl •hoft subjected to torque will ho a. 50 Nlmm!

b. 57.7 N/mm' c. ｾＶ ＮＶ＠ N/mm1

d 11)0 Nlmm' <16. Which ｯｮｾ＠ ul' the roll cMing prupr.:rtlc::s is

ｴｬｴ ｯｲ･ｳ ｣ｮ ｾ ｩｴｩｶ ･＠ to ｩ ｵ｣Ｑ ｾｴｴｊｓ｣＠ in slrni.n I'!IIC?

" · Yield sb·cngth h. Proportionol lfmil t. Elostic limit cl. l ensilestronglh

97. Pearlite ctJnsists of :1. 6.67"·• C :mil Ｙｾ Ｎ ＺＭＳＥ＠ ferrite h. t30,·o F4: and ｾｮｯｾ＠ cemcntit t:. ｾＮ＠ l3% C •oil ｾＷ ｾｯ＠ ferrite d. 13'1o oomcnlihand 87"H<mito

98. Addition of VMMiium to <toel rusulls in improve-me-nt of :t. ho.1tlrootthillty byqoonchlng b harden ability c. fatigue strength 11. resistance lCi oxidation at elevoted

ｬ･ｭｰｾｮｲｵｲｵ＠

99. Atomic packing lhctor (APF) in the case ul' copper Cl)'&lol is

"· 0.52 b. 0.6M c. U.74 cl. ＱＮ ＶＮｾＳ＠

I 00. f'>urlng par3tnctlc sohdollcallon. one hltlltd b . ｾ Ｎ ＼ｬ｣ｮ｢ｩｮｾｳ＠ With one ｾｯ ｬｩ､＠ to fomo A

sccmld ｉｾｃ ｜ ｜Ｑ＠ solid h. ＼ｾｬｩ､ｩＨｩ｣ｳ＠ iut11 1\vo dill'c! <>nl •olids c. f01tos one •olid d. fonn one solid and unother liquid

101. Consider the following advantages:

13 ut IS l. Ropld process ? . \Vorl; witl1 keyways c.'n ｾ ･＠ ground 3, j\)Q woJk holding device is required. Which ol' these are the •dvantai!"S of centre les; grinding'/

a. L 2.und 3 b. l and 2. c, 2a.nd 3

d. land 3 102 102. 1\.lscrtion (1\): Poisson's ratio ll f a

material is a measure of ｣ ｨｾｮ ｧ｣＠ in dimension in one dircetlon due I<• lcla<ling in Uoc pcql<lndkul:u· di1'<1cliou. Rcoson (R): Tile uaturo uf l tctcl'lll &lruiu in ｾＧ＠ oninxin lly ｬｴ ｾ ｮ､･ｴｬ＠ memhe:r i.tt oppul\ it t l'u th•• or line.11· $lr.1in.

"· ｬ ｾｯｬｨ＠ A arul Rare u·uc: Md R ｴｾ＠ th" c:orr-c<:l <e'<planoliun of i\

b. Boll• A and R :tro ｵ ﾷ ｵ ｾ＠ but R i. NOT the correct Ol(plonation of A

c. A is true but R is ·f.1lse d. A is false hul R is true

l(l.l Assertion (A): Addition polymeru.uoon IS a primory suonnat ion of incl1vidual molocules into long choins. Ren.son CR): lrt addition polymctiz.1tlon the reaction produces a <mall molecule as l>y-fl i'Oducl a. Bolle A and Rar" IJ uc and R IS lite

ｾｵｮ｣｣ ｴ＠ cxplan:ction oft\ b. Both A Jnd R ore true hut R is NOT

the currect "'-X planaticml)f A c. A is true oUI R L' ral<e d. A is f;clse hut R is trne

104. Assertion (A) Nomr•li:t.ed steel will Knee lower hordu""s ｴｬｾｮｮ＠ M\ll cakd •teel Rcasou (R): ·n,. pc;u·ti.,· of nor.mnfucd steel is finor 1'1nd has lower inlermo laculor space. a. Both A and R.1re b'IJe nnd R is the

col'!'>:¢! cxplon.1tiou of A

b. Bo01 A Md R arc mre but R is NOT tho corTcct cxplan•tion of A

c. A i$ true ｾｵｴ＠ R is talse d. A is flolse but R is true

105. When a composite unil con.sishng ot' • steel rod ｳ ｵｲｲｯｵｮｵ ｾＨ ｬ＠ ｾ＾Ｇ＠ a cruet iron lube is ｾｵ｢ｪ｣｣ ｴ ｣､＠ tu 1111 ｾｉ＠ load. Asscrfiun (A): The ratio ul' nunnnl•tn:.sc• induced in ooth lhe ni•leriat. ;, C<jll3l lo

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tho ｲｾｴｩ ｯ＠ of ¥oung·s moduli of respecHve materials. Reason ( R): ｔ ｨｾ＠ｾｯ ｭｰ ｯｳｩ ｴ ｣＠ unit or U1<:s<> twu mott:rialJ; is li1mlv fastened tol!othc• Ill the ｣ｵ､ ｾ＠ to i: tl li Ut C: ｾ｣ Ｑｵ ｴ ､＠ deforn;;atiuu in hqth the m:olcrinl$, ;1, Both A ｾｮ､＠ Ran: true :md R is the

con"Cc\ C:l<plaMtion of A b. Bo01 A and R are true but R i• NOT

tll e COtTec.l expl:snation or A c. A is truu but R is false d. A is false bul R i$ lnJe

l( tli , ｾｳ･ｲｴ Ｑ ｯｮ＠ (A) Cam of a specified contour 1s preferred lo a cam with a specified follow"' mution. Reason (R )! Cam of • specified contour l•u ｳ ｵｰ ｾｲｩｯｲ＠ performance. a. 'Both A :ond Rare true and R ｩ ｾ＠ the

ｾｯ ｭ｣ ｴ＠ ･Ｚｾｯ Ｑ ＾ ｬｾｲｮｬｴｩ ｯ ｮ＠ ol' A h Both A 1md R are ltUc hut R is NO'I'

the cOrl'<:ct ｣ Ｎ ｾ ｰｬｵｮｮｴｩｵｮ＠ uf A c. A is ttue but R is fal•c d. A is l'olsc but R is true

1()7. A"ertion (A); 1n designing the size of the fl ywheel, the weight of the am1s nnd the boss are neg.le.:ted. R"ason (R); 'I he fl ywheel obsorbs cne•'llY during tbose periods wbcn ｴ｢ ｾ＠ turuing moment ls greater than the- re!': isting moment a, Bolb A ｾｮ､＠ Rare uue and R is lh<l"

.:<lm>cll.''<lllonollon of A b. Both A and R OJt truo but R is NOT

U.e correcl expL1nntion o.f A c. A is true but R;. ｲｾｬ･＠cl A is ｦ ｯｬｾ｣＠ but!{ is true

lOS. Assertion (A): l'or u radial eng}M Cl}n talnin!l Rout 11r >lUIIe "Yiind<.-r!<. U1c 'itoond:• ry fott:c" :u'C in i!( mlplctc· bul: tucc .. Reosou (R): The •tc<Jnd"rv dir<.'Ct und reverse ｣ ｲ｡ｮｫＮ ｾ＠ rnnn " ｬ＾｡ｬ ｲ ｭ ｾｦ＼ｬ＠ system in l hc radial cngincm, a, Both A ｾｮ､＠ R:!ll: ｴｲｮｾ＠ Jnd R i3 ｴｨ ｾ＠

conl!"t explanotion of A b. Both A and R ""' true but R is NOT

the corr"".t explanation of A c. A t< true bul R L; false d. A is faCse but R is true

109. ｾｳ･ｲ｢ ｯ ｮ＠ (i\): 111 pre-loaded rolled joims .. there i• o tendency for failure tu ｯｾ｣ｵｲ＠ in ll ><> gross plate section ratl1cr lhon tlmmgh holes.

I ｾ＠ nl IS Reason (R): TI1e ell'¢ct of prt>loading is lo creal<! suOicient motion between the aSgcmbled pn1ts sv thatnu sl ippnge uo!Citrs. a. Dill!> A and lhrc 11 uc ''"d R ｾﾷ＠ tile

curroct c.xplimnlion of i\ b. Bnth A ond R nrc ttuc but R i> NOT

the ..:urrect explanali<m of A c. A is ln•e but R is false d. A is false hut R is true

ItO As<eniou (A) : Helical geaos are used for transmitting motion ｾｮ ､＠ power bctwecn ｩｮｴＢｾｲｳ･｣ｴｩｮＡ＠ ｳ ｨ［ｾ ｟ ｦｴｳ Ｌ＠ where was .Jt.rai ght bevel gears ｾ ｲ･＠ used for ｴｲｾｮｳｭ＠ itting motion aud power ｢ｾｩｷＮＮ｣ｮ＠ two shills ｩｮｬｴｭｾ･｣ｴｩｮ Ｌｧ＠ oaoh other at900;

Reason (R )! ln helical ﾣｾＱＧＵ＠ teeth arc inclined to the axis of lhe shaft and are in u.e form of. helix, whereas lit be\•el gears. let:lh :lfc lapon:tl bo01 in tlliekness :mtl height from one end to 01e-oU1er. a. Bolh A and Rore b"e and I< is U.o>

c.orn:ct ･Ｎｾ ｰｬ｡ｮＮＱｴｩｯ ｮ＠ of A b. Bolh A and R nre lrue but R is NO'l'

tbt .:orrect expl3nation nf t\ c. ;\ i• true but R is f•l se <l A il< fnlst but R is true

Ill. 1\Mertion (1\ ): To oblttin Iorge defonnation> by cold working intcrmf<liatc Ｚｾｮｮ｣｡ｬｩｮ ｧ＠ is not l'<:(llllfc<l. Re:•sun (H); Culll IV ()rk:iog is pcrlbnncd belOW the rct:l)•taiJisotion lc111pC1'11lure of the work mllt<•·inl . a. Bolh A nnd Rare true and R lS the

correct explanation orA b. BoO• A aotu R ore true but R is NO'J'

the correct cxplamtion of A c. A is true but R ;,. fube d. A is false but R is true

112. As11llrlion (A): Oil os cuttiug flmd rusult!. in a lmver ｣ｯ･ ｦＱｩ ｣ｩ ｾＱ＠ ol'fnulion, Re;u;nn (Rl: oil fom" n thin liquid filtn between tho tool J>cct .Jild chip, oud iL l"·ovided ·ll.l'dro¢yonic Iubricallon ·. u. BoO• II. ilnd Rnrc trW ｾ ｮ､＠ R ｾﾷ＠ lhe

ｾｏ ｭＺ＼ＺＡ＠ ･ｘ ｰｬｮｮｾｬｩ ｯ ｮ＠ or A b. Bolh A ond R ate true hut k LS NOT

Lh c cun cet ｣ ｾ ＭＮ［ｰｬＺｭ｡ｴｩｯｮ＠ ur A "· A i• true but R is false d. A is fnlsc but R is true

113. Assertion (A): ln metal cuuin,g. lho nonnal lnws of sliding fri<:tion nre not npplicable.

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Reason (R): Vel) high temperature is 11rodueed m ｴｨｾ＠ tool-dtip interface. a. Both A and Rare true :md R is the

･ｾ ｲｲｾ･ ｴ＠ e.xplanatJ<1n of A b. Both 1\ 11nd R are lfue blll R is NO'J'

the corr<CI cxplnnoti<>n of A c. A b true btll R is ｦｩ Ｑｬｾ･＠d. A is lillsc but R is true

114 Assenton (A): 11tc maio <}f' culling force to lhrusL Ioree is wry htgh in grinding process 3.' cumparea tu othe-r mocbining procosses. Reason (Rl: Random orieolnl.ion and effective negruive rake angles of nlmtstvc grains Tncr<ase the cuUing Ioree and adversely ntleca the enning ｡ ｾ ｴｩｴｭ＠ ttnd promote rubbing nction. o. floth A an<l Rare IIIIo and R i> thu

corrtct c_,.-ptanatiun of A b Both A ntHI R arc tnu: but R is NOT

the cnrrcej c•plonotion of A c, A (, true hut R is false d. A is ｦＧｾｳ･＠ but R is true

115, Assertion (A): The :t.xis of an NC drilling rnachinc Spindle is denoted as z -ax is. Reason (R): In NC machine tool. the axis perpendiculllf to both x- and y - axes 15

desig•loted as ' • ｴｌ＼ｾｾ Ｎ＠

a. Both A 3JJd Rare u·ue and R is the ｾｬｬｲｲｃｃＨ＠ ｾｘ ｴ Ｉ ｬ ｡ｮ｡ｴｬ ｵ ｮ＠ or A

b Both A mtd R are lme but R is NO'!' the correCt expltmalion or A

c. A is true but R is talsc d. A is false but R is true

I I o 1\sscl110n (A): Double sampling is preferred over smgle ｾ ｮｭｰｬｩｮｧ＠ when the qualily of incoming lots is expected t<' be either vCr) good or very bad" Reason ( R): With do ｵ｢ｩ ｾ＠ snmpl iog. th• amount of lnspection reqttired will be lesser than in lh" cas< of si11gle swnpling a. Both A and Rare true and R is the

｣ｶ ｲｾ ﾷ ･｣ ｴ＠ explauntitm tl f A b. Both A :u1d 1<. are 1111e but R is NO l'

the correct ｾ Ｎ ｸ ｰ ｬ Ｚｭｵｴｴｯｬｬ＠ of A c. A is tn•e bul R IS false d. II i.> false but ｉ ｾ＠ is trw

117 1\sscrtiott (A): Vogel's approxm1tuio11 metltod Ytelds ｾ ＾ ･Ｎ＠ best mrtiul basic

I S o f 15 feasible solution or a ti'UllSIIortalion fli'\Jbknt Reason (R): Vogel's method gives allocmiuns 111 the lo,\esl cost elements of the I\ hole ｭ｡ｴｲｩ ｾ＠

ｾ Ｍ B<)th A and ｒ｡ｲｾ＠ true ;uul R is the con-cct e•planation 111' A

b. Both A iJHJ R are tme but R is NOT 01c correct explanation of A

ｾ＠ A is lruc but R is false 0. A 1s false but R is true

118. Assertion (A): Master production schedule dnves lhe whole of production and inventory control sys1e111 in a 01anufacluring orgunl7<ttiun. Reason ( R). ｍ｡ｳｴ＼ｾｲ＠ production schedule is a I ist of dail) 1md Ｑ｜ Ｇ Ｈｾｫｬ ｹ＠ work released by PPC to production. a. Bolh <\ anJ Rnre true and R is th<

correct explanation tlf A b. Botlt A and R are true but R i' NOT

the correct <Xplannlilln 1)1' A c. A Is lfue but R ls f:tlse d A Is false but R is tmc

tt•J. Assertion (A): ｬＧｨｾ＠ Jin:ction or Cnriole<. acceknttion sho\>11 in 01e given figure is correcL

( 8-- z '" v (coriol<S ""''''"'linn)

• .. ... 1--

0

Reuson (R): fhe di1ectiou uf C:uiotes accdcrnt•on is such ahnt It will rouuc m a velocity v about ｩｴ ｾ＠ urigm in the dircillion oppllslle to u)

120. Assenion (A): While 11lotting uonut•l charts for ｶｵｲｩｮ｢ｬｾ＠ averages of sub -groups of readings arc u'cd rather than the tndividual rcadin£,S. Reason ( R); IT oontrol chans. ｵｲｾ＠ pl!'lltcd with the Individual reading;. the. laoour of ploning ｾＱ ｣＠ chan ''il l inercase. a, l.loth i l and Rnn: true and R is the

correct explanatiOn of A b ll11th A and R nrc true but R is NO'I

the cQrrect c.\']Jiannlif;m of A c. A Is lfuc but R ;, false d. A is l'olsc but R is true