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Section At. Thecuting lool tharpedms onhogonal ulhng s

(c) helicdnilling curbr(D) si.slpointcuting tol ror rumin82. !d rnc xed crding stcedand ed, whd $e posiiiveEle aqle of acuning olindees, lhe ool li6e

(A) in@as.s (B) d4es(c) in@asa and fiendecMe (D) dec@es andaen incr'ases3. ltc naldeof di@fiix Eqdied lo ptldu@ cylindticalslria@ n ihe athe s

lA) Dkincuru (B) ctr'ulrrLO in. l 'nedld. (D' shrstul r4. A olat of 25mn ihickne$ is b be &illed ar de fed Eie of 0,025nn/iev wid n2o:onds. Nsl4dns breakthrcushisE@, de drilling.p*d vould be

(A) lOO0pn (B) l5mrpn (C) 2000r!m @) 3000tpn5. In lltlsqic mchining, rheprc!.rq shichontiburr to lhe beftr pdfoman@ '

(A)clsFicalconductivit, (B) m9eticp.mreabihv(C) rhmal.Dduuvrq (Di hddn6-6. tliehd srldial Emo\r Ft with Soodsurfad lidsh in rhc elelic dishdgenachiniagcan e ehi.vcd wih

(A) highd f,n cutdr witl highn f,quncv of sparkng(B) lo*d nen c!ftnr virh smu.r puls dutaton(C) hiE!.r nan .mDt wi.h ldee. puls duErion(D) lowd nan clffit witn highq fiEquetrvof sparrine/. The NCOR.RICT ldelim ror hc dd Sruu svskm

(A) Tte ds tolm. shouldbe sdfici.nt for compmsrtingh sbrinklge n lne(B) lasDolnrg tin cmtibubs tu.buldr flow in lhe mold(C) t rg pouing tire quircs highdpounngnp.Ftue(D) fie nolta na&rial in the ier should olidifv n thbeginniag

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3. 6 nor@ued by nc hrgh ounng emPedrur f meltn

(B) 106% by stof@bon(D) 0.6%b, wt or cdbonnG.hanicaldefmtion by twinning@us in nehk $rt hav(A) b.. slructdre t ow rmpdatoE ndd hiC! tue of lodineCA) bcc sEErureat ow bnpmtE andar o* nG of loding(( j 1.psuucrFa' hrg!kmperrrurcddd o! nao.ddinc(D) hcp nu.ruF heh bipd.ru{&d hrei'Jkof oldingwhich one ol fte folloring sbremnb is ru .bom the disleario @banisn in

(A) Ehstic andplasticdeftrnation @c?odi b de nolon of larec unbd or(B) Pl$lic dcfom io! cotrsponds o rte notid of ldge numba ol dislsarionsiC\ eutti. a.t*otion "o""tponds b lhe modonol ldsP nunbd or dislddions(b) Dhlocatid do.s not lnuenc enhs ela$icd plasticdefmrrionWhich one of rh following type of srftss@in Etati@ship Esr d'sdbs rhebehNiorof m@nalsar enpniure aboYehcir EsPctiveecrystalliationFint?

(D) eldtic andshin hardeninsooffi -a rhe artolsit eoffi] is

(B) neblpenehnon

CANNOTb beareared?

t2 .

which of rhe olloqirg mcaak

(Al 0,106%by vt or crbon(c) 1.06% y wt of cllbon

(C) elasticaadpededy plsticThe yTeof fi het*@. theholeol si4

1t.

15. Thegmctric chrncbristc Epre*nrinahesymbol- h

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16. The criterion or a goodbearing urfaces(A) negative alueof skewness (B) positivevaiueof skewness(C) zeroskewness (D) highvalueof skewness

l'7. Waviness f amachined urfaces caused nlyby the(A) machineool vibration(B) worn out cutting tool geometry(C) excessive epthof cut(D) excessiveheatgenerationduring machining

18. Coldworkingof a metal esultsn(A) an ncreasen strengthanda decreasen ductility(B) an ncreasen srerigth andan ncrease n ductility(C) a decreasen strengthand a decreasen ductility(D) a decreasen strengthand an ncrease n ductility

lg. In the metal extrusionprocess,when thedie angle ncreases,herequiredextrusionforce(A) increases G) decteases(C) decreases ndthen ncreases (D) increases ndthen decreases

20. Springbackfactor of the sheetmetal depends n(A) bothbend adiusand hickness (B) bendradius nly(C) thicknessonly (D) surfacearea

2I. Mechanicalproperty that decides he cutting force in the blanking operations(A) compressive trength (B) shearstrength(C) tensile trength (D) modulusof elasticity

22. The echnique OT SUITABLE for oining two aluminiumparts s(A) cold weldinc (B) brazing(C) tungstennertgaswelding (D) electron eamwelding

23. To reducemetallurgical amage,t is desirableo meltmaterialwith(A) minimumenergynputwith high heatdensity(B) maximumenergynputwith low heatdensity(C) minimumenergynputwith low heatdensity(D) maximumenergynputwith high heatdensity

09-ME-Y-s/36

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24.

25.

21.

10.

A sbppingnord has300sEP angles nd ns ourpnishrft h dn@dyc@n{red tothe erdsrew having prtch l5 mm Thewark able l apo ioning ynen sdriver by ihe lead screw The Equired puls nre ro noe rhe wdk iable tt

(B) 200HzThe biliry af r ps ioning to a pEMously dclined lf ion is

(B)(D)

The avdgc Faductim raE

Fleriblen ufa.Fnne stecm aE 3d.6lly {phed n(A) hiehvdety and or volunelmductim(B) dedium volumeandncdm v&ieq pr.duction(C) lor v..i.ty and ot tolDne pndudim(D) hish varietyandhienvolume r.duction

bakdom @cu6 s 10nirutes,(c) 2

28 I! d aurmobile nanrfacturin8 ndusty, fd .vcry 3 ninuB a ne* dotor cvcleadks fd ine*tion ard is atendcdby aqualiq conrol engineer na rnGoncrfist-sft basis. t@ is @ly onedgin@r o dury and t hkes exacdv ninut6to inspect ich noror cycte. f LlieE s no m@ cyclervairing insp.n@d $.beeiuing of the shi& then rhe avemgcnunb.r of notd cvcle writina frinslarion in L'ie ud nineninut s s(B ) l/q (D)

An iutnatd hnsfer line has 0 starionsnd zn idql cycleprobabflnyof a $dtim failur is 0.01 and the lvecg(B) rr@) r0l

7t .(cl

A mchine t@l nanufacdilna .dusdy r.quis ropurchae2000helicdgea6/vdfion ! ger nmufmbnng industry.The odenng con is Rs lo{v_p.r ode! andthecdrtin8 costperunit ps ye& is Rs. (y . TIE {qonic od quanntv(cl 200

Followineuble showshc dtu abouta s of si'gle oper.honobsro bc mchined

t 26 1Tlre prmum e4uer(err m'ndiasrhe mon nos meB

(c) l r+52 (D, 254-L-3

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31. Cmsidcrie followin! hramenbbour @t ndwdkl(I) RorhareParhutcnds.(II) BolhrE euct dlifmntirk.(III) Wdk is lowgbdc end-ay ndhdt ishighg@de ndgv(lV) He is lw SFdenerg}and ork is high3denergvwhich of th ollowing optim are rue?

32.

33,

(A) I and I (B l IandIII(c) r rndrv (D) nddIIIA hcalensrne uscdb dnve heatprnp The hdi hnsfos ion thehatengineand fror the hearpumpareused o h@t rhe cncuhtina waEr in I plml Theefliciencyof the hat engine s 30%wh.us dE COPof thc h@tpunP is 5. IteheardDsfer ro theciEularingqler snd rhchat hnsld to 6e enSine ei$ I ralo

cs) 0.3 (c) (D) t2.5A cdin anomt of fluid al @nleratlE 4 is nixed with an cqualmount of thesame ldid at remp.nturc 11 in an in$latd conhiner.witfi hhl anid rs rhesyscn, considsrhe ollovin8 sbMei6:(I) En6sy of the sysbn is@nseryed.(Il) Enropy of rh. systeDs 3os.red.GD EnroPy of rhesyslcm ncHksOv) Entopy or lhe sysrem 4rdsWhidhof fte follo*ing .ptions is tue?(A) I andn G) Ia'dm(C) lmdlv (D) IonlyA pr$ur-cooker mrajN vlter ar 100"C $ith liquid $lmc being o! bnih almpour volum., Al 100 C, the sp..ific lolunes fd satuFted liquid and saiDdEttv,por a o.ool mlkg dd 16 ntr/rg, rs!4drelv The dqr"'r rs'n'n for ihe

' 160 G)* (D)35. rhe op. ofthcosknr\o ume 'ne nrhe r d r8nm $

(A) hishd than heslopeor tneconna pEsure line(B) lowe.lhandle slopeof de cdianr pr6sue line(c) equrl o rheslapeof tte conshnipE$uE line(D) .qu!l & Lhe lapeor lhe @nslanrEmrErdurcxne

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loule ThmsonctrfficEni for n

J1.

19.

41. Marchdr I and it /r'

(A) equalo .d/a arrU renperatus rt plesues(B) eqEl ro ae !t all bnperatures ndDNUES(C) greate!hd on, atsll hpdtus rd pre$uEs(D) l6s rhan eraai all @EPentoGandpresuEsTh. incEe in p$uE Equned io d4rae unn volude of rercdry (bulknodulus 23.5MPa) Y0.l% s

(a) 235MP! (c l 2 35MP. iDl 235lPawhich or the followina stol@dh is FAISE aboli s@n tutrction{l/) udloteniid rurcdo (d) rot a $eadr, ncanpl!$ibl and nviscldani d?(A) Lina ofcon.hnt C4d l// m nuMll, orrhosonal(B) r/ is deined fd rwcdinensiml flows whdeas / n 'Gfined

rd rhE-(O Bon\y Md t exist or rhe-dimensionallows0) Borh ud d exist or NGdid*iond norsFor fte llow of a Newr@iaafluid wnn costsnt densitvand vie6itv thc

(A) Ndvie.srokesequrion (B) lnpla@equationier t",. "q-n- .D, Be-our'equaonA Airenfluid flos probld involvs the vei.bles suchas,volwe flo* ne Idyiamic vis6ity /. densnyp. chmrdstic lengdi / and '@l'mhon du' togFvity 3 . Whichof the ol owingcombinationl variablcss dimd sim cs?

33.

(r) (c) !91l 'o' ar#

MN sTP Ua

(B) M-U:N vio-RrPTi QS(D) M-TiN V:O.UrP iQ_Rs;P-TrQR

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42. In r twcdincnsionll nos of a viscous lurd CouG flow is defined oi(A) pre$uE ertdicnldrivenlaminar ld t&en fixedpacllel pldes(B) lre$ure gidien.drivcn laninar no* $mueh'on cnculardutLaJ p,es.reg?d"nrd' " ' xni rnoq'- rcur D'o(D) lxninar Uowbetwem 6rd anda mon.g pldrc

43 BlNius equationd a flat plaie aminarbonr&i'a layeinow n I lnnd order(A) nonliler ndinry dilTerenrirl equtjd(B) linear oldiwy diffeential equ or(C) nmlincar parti diffmntial eqmtid(D) lined panial diffe'enri'l equatio

44. Air nors pan a eolf ball of 20 nn EdiN. Ir is obsdved tnat $e baundrry laye.becond iurbulent at Rcynoldsnumbn of I i t0 If the kinemaricviscosity of dris 1.5 x 1f5 nr^, then rhe s!ed olair \lE d. noq bccomesubulenr is

(A) 150"s (B) 90nvs (c) 75nvs (D) 62.5 /s, 45. which orc of ihe following FaDerriesdops ?Is a nomal sh@k?

46. Choosehecirot s.rcne for a qudise dinensiondsupelsnic now thioughr variable @ duct.

G)({ L(J 75 7 (D, 35 7

(A) veldq decreaseshen afta incGs(B) vel@ity lncreaeswha aa incE.s(C) velocity incrass whenrea dl6(D) Velociryh indcpetrdenlf lea

,17. An a1trniniuftsh@rof l0 nm thicknes x bousht inrocontul snh an M shelol 20 nm rhickne$.The outd suifre of aluminium5 kept at lfi) 'C, wherrs hcoutersuifr@ of ibn is minbined ar0 'C If dc ratroof $ml conducrivilies Irluminiun and ron s 3 : l, rhfl the ntnice remp.rarurer 'C k

{B) Stagnatr.nnpartoe

48. Hor tansler Ebs aE oftn dd$nb.d bl non-dimensionalataDetensuch asNNslt numbr '!), P@dd numb.' (P4, Reynoldsmber (R.). crushornumbef 64. Biot umb$ (3i), Foui.r numberFd). which of the orlowinstuncrionalElarion6h tue lr ft@ canvdfim?

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For rwo infinile p{auel Srayplincs virh enissivi.iestL and c:, rhc ncichan3p

(Bl

(c)I

(A)+(q4

or lrl

Q) r.-rd

50. I' n $li. sislcd an{ondilioning s}dm, I te/s 6f anbre ft i3 io bpreh'otdbv rhe sameddlt 6f tn laving rhc slsrco. A counia_flo* h*t dchmAer;i";;; ;;';; atJ ;i;.".',r ha,Jasrq. h rF or2twm-Kk u*dro rhis pu'lok Asm ns . , b .i' as I uag K rhr ' ehved* of th' hsl(B) 06 (c) 1.6 @) 2,s

In a wpour compcssimPiijcmion cvcl., if 4 and4 dctob rhe emfialpics tinlet dd.xit of rheconpBsd, espetivelv, tti is thee halpv t lhe 'xit of dreconddu od 4 is the dthalpv at lhe inld of t1Ecvapodid. thencoP fd the

(B) 4@)=

53.

Thenudbd of hydrcsd tbm in Lrre fit@t R 12 s(A) 4 (B) 2 (C) I (D) owtich ol $e followingoprids is N. rr dE &v bulbGnpeldu (];) thew'tbulbbmpcntu (16 ) sd d d.w_point Fnture (?'r ) rd ' nir@ of arandwald vapour?

54 In acounEFflN @ling tower,wam wab en6 at Gnpnrur' of I" Thcdrybulb md die w! bulb bnpmiuEs or ai. endilg the brer ae I" and4m'' .

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j5 If O is rhevolumelo* n, a is de nerhsd a.'l N h rhestrtional spcd f !centifugal puDp, and if 3 denotes ne ac.elerahondue to graviq, the. tbedinedsianle$sFcific speed f thepump s5rn by.- v.jprAr ll!14 LB) ll5 lC) _l !:,q" I rHf " ' t-

56. In a sinple Rankinccycle, $eam enrc6 Lh. condensett s{uned vrpour mdleavcsas sltunted liquid. Thc coMcn$r td b.,ler presuresaic nli$ained atZ andA . resprilcly. Il vr an'l v, d. tlF ste.ific volunes oi satunrediquidand saru'ated apourdt cmdcnseriesuE. drenpunp w.rk can be apprcriiatd

@) P,(", -'r)5?. Ados rhe torofri rr rl flo$ rca iongrs'uftine,

(a) $soluE velocityde@ss (B) rehdvevel@itvd@Erscs(C) absolucvelociry ncEases (D) rbsolucvel*iry Emins cm$ant53 In ! two{t'ee grs turbineplantoperrine d aBmyron ycle ith egeneatid,

(A) wtrk otrFnt ncreases,urcycleerfici.icy dreas.(B) wdk ourpurnmrses, brt cycleefrciency emins nnchrnCed(C) .ycleefficicncyincreases,bur*ortourputrenainsnchanCrd(D) bothcycleefficiencyand*ork ooFut ncrease59 Foran Oto cycle, he ncrrsen compEsion rl.io leads o

(A) m incrae in rhemal efficiency b! x decrcasen nean ffective PE$ure(B) a de.rase in therm'l efficiency bur u i.croP in nan eftirtive pE*u(c) a darde in rhermrl efficiency $d man effectivepsuE(D) an incaso in ihernal efficiency and ftan cfl4rive prcsureb0 Knoc,.ng.nsprl gr ion engie.,n b. rdu._d b)

(A) increasinsheconpre$on ralo(B) inftasin! rhe nlei rtr rdpmture(c) incrersinghecoolantwrter tenp.mtur.(D) Eilrding rhcsparkadvance

6l A nraighr'arhrving con$antros ec.oml rer,4, lenlrh " andweishtW. shan8lnaetically. f E is rheYounS nodulNof thenardal of lhe bf tohlincreasehengthf thebdrdue o rsownNeLshtnlv s@* @Y! \c) # e) #

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6t .

A nl cub ol t i x I n i I m n subjecGd o hydro$dic pre$ure of I MPt. Ilfor $*1, Youngs mdduluss 200GPa. id Poisson raho s 03. the pDFxihxrechxngc n valume of rhecube due to the hydrcsbric pre$ure w,ll be{A) {rro-'mr 1B) -2xlormr (C) r,ro'm' (D)A solid cncuhr shaft ol dLrnererd s subjored o prre toxidn 7.tensile re$ nduccd il lberA = (s; -:, rA rhincylinder f i.nerndius rndrhickns i is subjdedba unilom ntenalprc$ue r' Ncgl*tine rhendirl s@$. rhemaximlm sh@rress in ihe wrll ot rhs

@) ll IBJ lLFor a panicula! oad dGtibution aldbendin8moment t anysrion r (0

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70.

72.

A $el rcd of ler8.h 30Omn is held beNdn Mo lixed suppons o dur rhe mdcannoreloSlre oi conracr n rhe xxid die.tion ll rhe enpeiarurc f rhe rcd isni.ed by 20 'C, rhe xid (re$ inducedn dr roddueb $n rie in rdpmtuE is(forsbel,E= 200 Paand = lr 5: toi/.ci

Whichde ot rhc ollowin8 shremen6la) J6 MPa ompusionlDr llMP.camprcsion

(a) ln rbe rincipal Flm6, botn nomrl dd shdr $reses ar dwat. zeio(B) ln rhe pnncipal planes. sh*r $Es tut d nry nor be zero and in rhenaxinun shu phnes,nmal shsg nry d maynot be zft(C) In rhe pnnciptl plan*, shear$fts is dlays zem rnd in rhe n intrn sharplanes.nom3l $E$es aE alvats uo(D) I! the princiFl plrnes. shear sftses m .lways zero hut in the roxinmshff planes.nmal $ases ndy q may nor be aroA s@l bolt k subleded b a der tasile l@d of 24 kN and a shq l@d ol9 *N.lr 'he jr l ol !'o 6 ar'o. rr'uns 'enno i-d .hm h JOOm- and rney.eldsidgrh in rnsion or rhc botr mrenal n 100 MPa. rhe opraiing lactoi of s.feD'according o ftarifrun sher sh6s rheo s

(B) 3A rhin phericalcsurc vc$clwift 5m mm nncrdhmererh eldedom $eelplarcs avirgyieldsaengrh,,= 2m MPaand ndumnceinit d,,= 100MPrth. vc$el is subjecedb intrnal preslu'dvhich variesDn 2 MPa b 6 MPa.Usin8 Soderbcq\ equ.rim fd rrtieuc failu and considering facbi of sale.yof 3,rhe hicknes t thcvc$clh

Thecirunferentirljoinr of a boiler t didci.! | m is dade of lapJoinr ith;!etdirmeler of 20 nn. lf lne allowrblc shed src$ fs the naGnal of the rivet is50 MPa d de boilerhas o wirhsand3n enrlpre$uE of2.5 MPa, hen heminimum umbr l rives Equned op\enrrhei'iluF of 6ejoinr is(D)

A nultiple dnc chth has4 $el discsand 3 bronz iscsdd acb rrfao hasaman radiusof 6{rmm.The cftliicic of lridior r 0.25.AJsuningnnifom wcr,thepowercaprcty of theclurchconspondin8oa rohrio.ll speed t 400 pm and

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A shafr f i00nb diameters weldedor flr plde16nnas shdm n Fig QT5 If.heallowlble hear50 MPa, hemdimumrorqre heshafican ithshndby a lil let seLdof weldsiEscs for theweld mdenal$

(At 3.3 rkNm (Br 2.8nkNm tc) i 3tr lN.n (D) 03trkNnA sez,et conr, t r or i o oothpirm dn ngo dO'oor43.r ' f t rmoduleil r ;m f t . adoedummddedmd-nre !mrnd15f ln *pa !_\ 'ndh_g4n r cut using20opssure dngle.The mE dishce is

77 Rrd'dpEsurcinahydrodyn.mi.bsniCis

o

Issiblc princ'pal strs!6

fig. Q7s

aB) independdrrtoad(C) ndimum hm filmLhicknessnininun(D) mxinun wh* filmrhickne$smxximnn73. Heningbone aFe uscd o

(A) avoid nrerrmnce(B) i.du@sed wcrghr(c) rcdue tlE wearoi Eeth(D) elininoe dial thrust?9. At a Pointon a conPorenrd, =120MP4 d, =40 MPr.

(A) 130MPa nd 30MPa(C) 130MPaand30 MPa30. From heSN cufle of d badill rhe ollo*ing dah e obuiied At S= 400MPt

'r' = 6000cvclesandat S= tOOMPr N = lO' cJct* A mchino cotnponentmrdeof thh mabrid is subi*red b a completlt r.vera bending ns of 40OM?a br3000 oyclesThen a3!in. if thc componcfl s strbj*te{l to d comlleE v reve&bending e$ of 100M?,, thcEnlinin! lifc of rhecmponenr s

(B) t50M?land -50 MPa(D) 150MPamd 50MPa

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31.

32

A roller of weight 500 N and rdius 0 5 m is b bdo8ged ovd a sm l r*rangulfblekby usingihonzonklforcePrrthecflft oltherollerasshowninFig Q3l'lie iinimum nagnltude of fote P EquiEd fo. draeging the roller should bc

Fi&Q3t(B) 400N (c) soo.6N (D) 500!e N

A sphere f nas ,t wi6 rldiusstans dlliag without slippingon aTheaclerarionof ihe bodyhr is $bjrted b a force F ar it5 cde and itroueh Mzotrtal suface $ shoM in Fis Q82

I i&Q82(c)B) - ,"t

33. In theMs shown n Fig Q33, hezeo f@ nenber(g K /e

Fig.Q3l

l5

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34.

35.

86.

47.

A bodyot m$ I kg whcn(n$uEd in neta) liven by

(A) 2N {B) 5NA ngid bai ol lenEd l.t6 B hmgins from a fiictionle$ pivoL rens no hdizonralcomponentol raclion fote dt the pnd Nhen a suddenblow is appliedhoriz.nhllt ar a disunceof I n fiom rheFoimof susFnsion fte timePqiod of

subjected o . fme r.sul6 in r displacement)=tr+2r .wh.Er is inecs The ote xcdrg n

(c)In a sirgle link roboticaft, rhc endeffec sli.,.s upsardvlocityof 0.5ft/s whitc rha ink rcraGsabdr nE evolutesped l I rrdls6. Whcn hc.ndcfLdd is at ! disr of Ia4eldtion eiperided by rh. .ndefferd aill b.

i+2i i+ i 16 r dF enfrr =l sc. The m:nin!d. of ol a sEiioarybodt oi massdE r.lcn) akined hy the

ri4 Q33 shovs a nechanisn ABCD usd fd naking medicinalpowde.A lunch widr tip point o is riSidly akb.d b &. link cD. At thc in$antconsid*d, the crdnkAB is roeting at a W*d of I Elvs undd thc action or arorque U) of 20 N-n to overcomehe Esiffi. l@ ( F ) ol l0 N actingai OwhichisporlcndicularrorhelineODf ODis I m.ttEd-eularvelmitrofheli.k

Fig.Q33aBl

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39.

92.

For rhe srmc oratrkLcngdrslider nnknhanism,r

(C) decEase y I 5 tines

rnd unifom angllI v.lociry of the ctunk in an ollierthe connectin! rod len-qfi s increasedby l 5 tines, ihe

(B) incrcas y l5 rimcs(D) incr.aseby 1.5\6 dbcsIr is planned cdsbct a lourbaf mehalism ABCD with le'grh AB = 60 mD,Bc = IOO n. cD = ?o m aid llxed linl AD = 200mm. t at led ono ink isrqrired to havea conplcE rolation. bis Mhrtn 6

h m @icyclicgEar n wirh r sun3tu. pla*r gear nd ! noving am rhe atio ofihe nunber of re.h of the 6un3.!r ro harof rheplanc(gar i5 3 rrheplaret$aris fixed.nd rhearmhas n .nellarvelatir of I50Om, hesunCar will srarc

In a sil'datin8 en8ine,henainm il@dm ineMgy tsvanadon n +.cd h Iimitedro 29bof dE lrlu sPed.lm ds aMdE ddi6 afSyEdon f ft. fl)ab.l h o I n, thc

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