4th semester (december; january-2014 and 2015) mechanical engineering question papers

13
A b4. rr'LC c.2014/Jan.2015 Fourth Semerter B.E. D"g."".-;,$ sorre:l=r+- ad 9=*y ror,= r(0) = ll and2(0)= I Take h:0 3 EngineerinE Mathematics -tv .2.. i; ta 1: a. al z1 .:! E Notct I. A"stq a ! ,-IvE fitt qaz\ttuns, vtztnhg ale6t TwO queeio"s fro,a &ch pon. 2. Ueof stansn al tahle is pen"inad. PART A a Enp)oy Tayloas scies method to linJ dn aFpi.xi are vndidn 1o Und y at x = 0 I givcn :1-\ -r' ru,- I h\co.. oe'i'r.rn b.. de^reerr' b \ohe.erl'uUi(b.1,*,.mor,o-.toa{ [gr\.r' ),0j .', 4.).0.1 ot c. Gircn :: = xlHy) and yil) = l. il l) = 1.233, r1l.l) = l.s.r8. y(1.3j = 1979. E\:lu.te y(l .1)b! AdanN-B6I rbnh nrctlrod. ADply corcctor lomula Nic.. " | .c Ptrd.l', n'e,l-o,l L ob'dnrle"e-urr"pp|inar.o0ro.ic.ol 'o'o !l-* 4 ,r o g en),or llior 05,\l.ur,norull d^ LL\ c. Apply Milnc\ nethod to conpute iol) Ene. y" + xy - y = 0. y(0 l) = 0.99s. y10.1) = 0.099s. t(0.2) = 0.9802, y'(0.2) = 0.l!6. y'(0.1)= 0.28(3 Dncuss the tramform*lon w-z-1. Find the BLTwhich mpsthcpointsz= l, i, -l 1o v=i.0. l\ \, - t)'t -r) 1 shcrc'r A\ rlr. ? = I. 0.1 by applyi.g Rugc Kuta .reth.d !,v:n 106\&rkn I0) = 1. /(0) = 0. Derive Cauchy-Rienmn equxrion incartesian l'm Fnrd an analltic ilndioi l'1, whos Eal per is llqz)isalonnnorphictunctionoaT.rl]eisiowtha! (07Mllkt ]1rr.r) -lilrr.lf =tr-, (07lllrrl5) (06nIrrrt (07 !'k, (07nr,rlc) rc,nr., \E 2

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A b4. rr'LC

c.2014/Jan.2015Fourth Semerter B.E. D"g."".-;,$

sorre:l=r+- ad 9=*y ror,=r(0) = ll and2(0)= I Take h:0 3

EngineerinE Mathematics -tv

.2..i;

ta

1:

a.

alz1

.:!

E

Notct I. A"stq a ! ,-IvE fitt qaz\ttuns, vtztnhgale6t TwO queeio"s fro,a &ch pon.

2. Ueof stansn al tahle is pen"inad.

PART Aa Enp)oy Tayloas scies method to linJ dn aFpi.xi are vndidn 1o Und y at x = 0 I givcn

:1-\ -r' ru,- I h\co.. oe'i'r.rn b.. de^reerr'

b \ohe.erl'uUi(b.1,*,.mor,o-.toa{ [gr\.r' ),0j .', 4.).0.1 ot

c. Gircn :: = xlHy) and yil) = l. il l) = 1.233, r1l.l) = l.s.r8. y(1.3j = 1979. E\:lu.te

y(l .1)b! AdanN-B6I rbnh nrctlrod. ADply corcctor lomula Nic..

" | .c Ptrd.l', n'e,l-o,l L ob'dnrle"e-urr"pp|inar.o0ro.ic.ol 'o'o

!l-* 4 ,r o g en),or llior 05,\l.ur,norulld^ LL\

c. Apply Milnc\ nethod to conpute iol) Ene. y" + xy - y = 0.y(0 l) = 0.99s. y10.1) = 0.099s. t(0.2) = 0.9802, y'(0.2) = 0.l!6.y'(0.1)= 0.28(3

Dncuss the tramform*lon w-z-1.Find the BLTwhich mpsthcpointsz= l, i, -l 1o v=i.0.

l\ \, - t)'t -r) 1

shcrc'r A\ rlr. ? = I.

0.1 by applyi.g Rugc Kuta .reth.d !,v:n

106\&rkn

I0) = 1. /(0) = 0.

Derive Cauchy-Rienmn equxrion incartesian l'mFnrd an analltic ilndioi l'1, whos Eal per is

llqz)isalonnnorphictunctionoaT.rl]eisiowtha!

(07Mllkt

]1rr.r) -lilrr.lf =tr-,(07lllrrl5)

(06nIrrrt

(07 !'k,

(07nr,rlc)

rc,nr., \E

2

\\ PAR BExprcls (r)=rr+ lxr 1r+51 2 jil.rms of LceodE po lFonials.Ohtai. incsolurion of iy +xy -(xr-.xr) y= 0 ificmN ol.,o(r) aid J.,(x).

D{i, e Podrique. rumrlJ q(r) =- -t(\ ,. Il

_lnor

a Th. ptubabiiity denriry continuous ftnd.m variabl.

0 1 5

|2 ilhe drla lbliotr a binomial dishburi.n

l0MAT41

srarc thc axio$ ofprobabiTny Foranyxv. events Aand B. pror€ drat.PlAu Bl=P(A)+f(B) fIA. B). (06ir!rk,Abox A'co.iains 2 white aDd.l black balls Anorhrbor'B cortains t Nhite and 7 bla.khalls. A ball n tiansfened Eotn the bol A ro the bor B. Then a bal n d?Nn fronr the box BFindtheFrebabilirythat it h$|ile. (07Ni,rktin a ceftaii college 4% olrhe bols lnd lr'0 ofeirls ar.lallft rhan I 8n, Furrler nlore 60%oiihesud..$ arc eirh lfasrdent h selectedar adomand is found to betalleinran I 3m,wh. !s the probabllry that the stxdo isagni) @7Nrrrkt

p(x)=Lc'. 10<x <-.liind,v. Aho findthe nc.n.b Ollaii rhc m.an a.d vriarcc oabi.omialdisl.ibltior. h a resl on:C00 eleca'c buibs, it was lound that dE lilc ola lmicular nake

disribulcd Nilh er avcraCe liae 0f20,10 houts a.d sD oa60 hou^ Estimatebllbs lik.ly ro bum lbr,l A4orr thrn 2150 b. $ii) Les than l95r hous.iii) More thur 1920 honts bnr less lhan2160 horr.Given A(l 5) = 0 41 2.A(l3l)=04664,A{:l)-04772.

=l I 07 for sdf].

a. I.acny A 209n ola nndotn sarple of900 school boys had a cerla slight ph_\,sical

defecl. In anoth$ city B. 18.j9'" ofa ranCom sample or 1600 school 5oys had the samedefecr. ls tie dlfcrc.ce Dcxvecn rhcproloitlons n signincanil wny?A manuaa.luiu .iained lhat atl.an 951'!.lthe dquipdeDt rhich he supplied to a fafiorycont mtd to Specilicatjons An exaninarion of a sanple ol 200 fieres ol cquipmeDrrevealed that i8 olthem werc huliy.lesl hh clain at a sienific&ce lerelof l% and slo.

107\lrrkr)A sd of nle simil& coins is losed i20 nmes and the rcsult is

TJSN l0ME/AU.l4

t

1

,,

4+:e2E

i2?i

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2:

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Nor.: Aht d anJ, FII/Efu questiohs, sete.tinsul@st TWO .lu6tots Jion, edch part.

PART AI a. whar do you mcanbyrigid li.k? Explain rypesollinkswnhexamples.

b. Explain thc follo\n1g irversions Nith.eat skekhil Double rocker me.hanic'nii) Canl and slotted lcler rlpe qui.k r€rum motion mechanisn

OA = 150mn, OC = l50mm. CB:250m

a. Statc and prole KeDnedy\ theoremb. Lo.ate all l-cente6 for lhe decbaDism dro*n in lig Q.1(b). Frnd the lelocity

by rccnter method W: = 20 r/s CCw Ta*cOA= 180mm. Aa = l6onm, BC =

Fourth SemesterB.E. Degree Examination, Dec.2014/lan.2015Kinamatics of Machines

c. Dcfine degEcs oln€edom and srare rhe ielarion for rhc sane tbr ptan,' mcchannnx havnrsonly Dmins and slidinF D,ns.

n Slietuh Peausellies mcchanism and prole rha! ir ctu race o straiehr line (r0Nrrrk,b. Explainparland ratchei wheeltoechanism wirh neat skerch. (0s Ntrrk,c wnh n.at sketch. explain $e.otuiitions for corect $eenne forAckemram-mechanism.

(05 rhrkt

a. what isConoh componentofmceleraiion?Derive rieerpreslon tir lhe sane. (0! M!,.r,b A quick rctum motion mechaiism is sho*r in FiC.Q 3{b) Link2rorBres}nhconstanrspeed

ol 2l .ad,/sec. ii cw dnection. Deremrine thc anCllar lcceteErion ot link l. Take

l'i;il};:'

Eig Q r(lr)

c, ./i

...>---'.?.]..

'5- o U.i1..omp'e\allcbmd"nc,lcc.pn..oo.rorle\'.do,c!eerdro',r 'efr.-,.in-line slider cranl nech3nnn. (t0Nkrktb. For an in line slider crank mechanisnr olcrank length of5omm, dank anglc or3o' a.d

connecline Dd of leDslh of lsonrnr. DeiemiDe rbe lebcny and accclcntion ol the slrdernsing conplca algebB-method. Trke the coBt0nl spoed ol cranl as 2l00rp in Cwdrecnon. (l0ltrrk,

IOME/AU44i:A'-' /.:..-. PARf - B

$hat is intcrfeEncel Derive tlre Elation lor the minimum Nnrb$ oftccth for a pair olinvolutepronleofteeth to avoid interfeEnce. o0Nl,rktThe two spur scaB or 19 dnd 47 reelh rcspeclilel] ae rn mcsh. The nodulc n 6 5mr andpressue angle is 20o. DeEmnre the nunber olpans in coftafi and ihc anelc tumed by thelarservheel Nhen one pairofteeth nr.onia.r (r0rl,rkt

a. Explainreverted t}!e sear rrain witlr stetch.b An epicyclic sear tBin is sbovn in Fig.Q.?(b) Annular gctr A

and has l0 reed. Compoud wheelCandDol20 and 22 reedlon lhe pir nxed to lnc arm P Nhich is igidly.onnected to rhewhich has l2 rcdh is nxcd. llthe driving shaft runs at loorpindrive. shaft. what N the dnection or rotaxon of dre drivcn

Mi.imum rdiu\ ol the clmMaxjnum displacement of the follorver

(0s lrrrrk,is keyed t. the dn!ina shaft

Espectnely lre ne to rotatcdrivcn shaft I.teml Eear Bin CIV fird the speed of6eshaft with re6r...e b nr.

Dravthe can pronle for lhe followlu data fora rollo lillower:Ofasd = lonro toNardsritrhr ofcrm ce.rer

= 2,lnm=90'oofcam rotaton n nh UAR\'I. accelerarioi

being halrof thc retardation

= !0' ol catn rotation wirh nodilied !tutbrnlDveU al lhe elerated posnioD

Alter the retur. stokc cam dwclls &r rhc Ftuanling period Dcrcmine rhe ff,r,.ru,n!elo.ilyand acceleration durins ouhtroke only Speedofcam is 60o,!tu nrCl!. (l0rrtrrkt

.\.:.:a.- rl:Fourth Semester B.E. Degree Examination, Dec.20l:l/Jan.20l5

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,'i .,,..

Ft vE Ia q kstio hs, se tectinequ.ttiol\ .from ea.h pa .

I OME/AI]4:I

Applied Thermodynafiics

:

2!

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9,i.a

1e

i) E.tbalpy of fomdioD.ii) E.thalpJ,dr.o.$uno.

!) Adiabaric flatue temleFtureThe producu of coDbNion of an unknoNn bydio cdboncomposnio. 0s nEasured by a. o(ar aFpararus: COr = 8.0%.N: = 82.310

i) The .ompsition ofthe tuel.,i) The an/tuelratio a.diii) Thcpercent er.ess atr Lsdd

o0nrikoCrH,, have rbe iolloehgco = 0.9%. or = 8.ii%.

a. Explain briefly Morselest. 106 \rr:k,b. lxpldin in. h.ar balaDce slleer. (0,r Nlarktc A 4 clrlinder gasoli.e e.sine opeEtes on a 4 stroke cycle. The base of each cylinder is

70m1and the srokc is 90mm. Clcarance yolume per crlinder is 70Cc Atasteedoal500r1)h, tlc tuel con$rmprion is l0 ke/hr and lorquc deleloped n l50N h Calorilic value oftucl is 41000 kj/kr IP ofihc ensirc N 72 kW. Calculare BP. BMEI. brake thermal

w h thc help ofP-V and T-S diagnms. derile an.xpresslon for tL. an sta.dard cficiencyofdiesclcycle. 0onhrr!)AI idealdicscl cycl. run ng !r 2000Dd has acompre$ion mtio.fzo lnd uses air as rheworki,rg flu,d. Thc state ofair at the besnBnrs olthe compression proces is 95kPa andlo"C ll the Mxnnmr temperatLre in the cyds is not ro cr.ccd 2200K, Dctrmincli) T[cinal ealiciency- ii) Mean eflectivepresurci ii)Netwo routputperuDnmassolan;\ (ne. r.Jr(vntr'prturn .j. .1. T".ed.rr),n 1.,-'.g'

elli! ciL] re rtre eli (.0!) dnd SFC.

\!ith the help of a schematl. dinemff and T S diagrarn, exphi.rcgcncdtile lapou polercycle aDd deile an expresion for the overall

(03Ir,rk,An ideal Ra&nrc cyct wnl rehear n designed to op$,rc according ro rhc ibllowing

Cy.l. eliiciency and iii) SteaErate

Steom at boiler outlet liobarandRchcai d 40 bar lo 550cC.Condensorpre$urc-0 100 barUsing the Molier chart findi) Quahyar rbine exn:

'i)

HT, l0l'IE/AI141

d D:l'\e l pl".{,b,. -nu,.oa.,.oidE. onoF..,,..,i r-.r!,trr loorg be"c.. lre rale c.., d,'\._,.,0,e. io. lj1 ..e...J,n -."jddrepre$u e [trrhe samcb. A-tw-o nas! atr tump.ssr sirh complcie i.rercooring dcrive.

",.,",n" ,,,",", ",

llIJJ,i.'loilobar. sucrioD condtions arc t bar and 15,C. rfborh cylind$ halc sme $;(c iindratio ol cylinder dianErer tbr mxinuo eincicn.y. o0ir,rk,Den\, J, e\p.e..r r to.

'e o...n '. p.e .re rai , tur rt." nd,u,rl der"ot JLrIj n

b'.J,01c\. ewlth rhe nela of a schemaljc tayout exptain rhc working of tu bo p.p r", *g,*. iol u*r.,iA gas tuftine plant has remperatuE linjr t0o0.C and l0qc aonpression ard erFansioDproce$ are ise.ropics. Derefrinei) Presurc r,tio which ertlgirerhe haximuhnetNorkourputi I M4imum ndspe!jfiLuor(ourpdii) Ther nJlerfi.icnc, otnra\r nr or qork on pur

iv) cahot ealici.ncrr wiinin the cy.le renpenture Ijnliis take./ = 1.4. cp = I oo5 kr,tg_(.r

i) Speciric humrdrt\ xnd relalte hum'd htrr Dryburb rnrDe,;rure drd \\er hurh k;.*,h -iii) suDtursir condrrioning aid wink a;co.dnioniis

b Atoosph*icanr t.0llzbaihas0dbtot32ocandasbtot26.C Co.putei) Thepa rlprc$urc or trarclapotrrii) The sde.rn. hrm,d \i;4 rl" ai* point t.np*rue.iv) Ihe.elativehumidny!) Tne degree of sxiurationvi) Thedcnsiryof atrinihe ntxtuE.!ii) The densiiyotvapour in the mixrure andvn, The erthalpy otthcmixture

,. rL " n.d . cal. srlJ l rch.qetu. or .t . ern r0o n"rr!,0. rwn an. Ie enelr ot J nfl he" ir e Jnd $b..J.r,s.1 ne \a.or -onore.. o..l.k \ h rbelp olT S md P H dDgEms (r4Nhrk,c A R-12 lapour compresion retijgerar,on ptanr is to develop : rn** oi*ritg"rit." ir,icondmsr d eqpdatu Emperantrcs lre ro br +40oC and - t o.C Especrivelr- D(erniie:i\Tle'o\.r " J. 'cr-!err .1 ' o . ,.'Le.otulpro!, eta,orjoO rccoo.r-,r:.rr r''" or'pe.orJ\.t/ge.e,.... .e r.,rLene,, .". ,, r,.,..

"1i.,",.lle oden.i' [w ri.,'lt-erL. t" oe.\.ug.."e,rt,ortne. \,iO" 0..,,,f.epoL.r.cqrrto i d-\e i.e conr.e , {

De..20l:l/Jan.20l5Fourtb Semester B.E. DeSree

Fluid Mechanics

rior.: Ahs et FIYEJitt qtestiohs, lete.tifte2r leatt Two q e\titns froit ea.h pan.

a Dennerhe follosingpropedesoaunid:

ai

4:.

b. Thcpresureou8iderhcdroplctofrvaterofdianerero04onnrlo3:l\/cmr(atnrosrheri.prcssuE). Calculaie r]t presure wnhh rhe drcpler if $ufa.c rension is gi!c. as

State ond pr.ve Pascalt law

Calculare the capillary cffect in mm n) a Slas tube ol,1 Dn dianeter. wben nnmesed nrHg The rempearurc ofliquid is 20'( .nd suraa.e tcnsion olHg 20'C in conracr *nh x r'r:_ \r, \',1 ol.or1.r. l'0' ...11..1. .orH .r,..

d. Dfi.rnnne thc sNcitic cra\ny ola nuid hallie viscosnl !.05 poise and kincmaric rhcosiry

(0s rvrrrk,nr water. find ils wcighl in ,n.

(0s rvrlrk,

I a. Deline: i) tsrclnncy.ivl l-ani$i nor.

5

The ngh Limbola snnple U tube danometer contailinE Hg is ope. ro rhe arfro sphcrc qhi l.thc left lnnb n .on.eaed to a pipe in Rhich a fluid ofspe.ili. lr,riry 0 9 n fl.\rins Thc.ente.rp,pe N 12 cn belo* rh. LevelolHg i. dr right limb. FiDd the presure offluid inthc fpc rirh( ditfe enccolllC c\e

'n $o lnh\

^ l0 cnr

c A canson lor closine rhe enfarce to a drydock h ofrapez.idallortu 16 m Nidc !r rhe bpand l0 r{ide ar bonom rnd 6 ordccp r_rnd the Iohlpresure andce.rc oaprc$urc on rhecaisso[ ilrle sitdotr dreoursidc hjust lcrcl$nhrhe [prnddock n empty 00 lrerks)

b. A body ofdimensions l.sm x I om x 2tu we,shs 1962 ^v\\rhat uill6e ns spcoilic Sn\n\?c A 25 cm dianeter pife carrler oil ofspecific graviry 0.9 ar a lelocity of3 nns Ar anorher

seti.r rhe diameter G 20 cfr Fi.d rhe relocnyarrhisseciionand dls Fle olilovofoit.(10\lsil,

a. \vlDt islulcfs eqlationofmoiionrH.wwillyou obrain Bcrnoulli\ e.lution liod irlu0 r'r,rk,

b. Thc$alerisuoNinsrtuoughataDerpipeofleDgdrtoonrbayinsdjamerers600mmarrhcupfer end and:l00 rm a he lo{cr end. rlr rate of50lrt Thc pipc has a slope of t inl0 r_ind rhe prcsure arrhe low.rendialhetressurca he itghu leleln 19.6: \ cm:.

00nlr[,PART - B

a. Skelch Md derive rhc reltrho. for actiral dnchargc rhoughanorincc meter 00ysrr,b. Srare Buckinshxnis x rr.orcm. The cti.icncy I ot a lan depends on dcnsity o. dlMnic\isoosnt [.rrhe flnid. angrlxr lclocrv d. diamercr D, discharge Q. Erprcss j] ii rems ofdinrnsionless p,mfreters Oorrt,rk,

L.f2

Dern! the Darcy-woisbach equation for llDIind thc head lost dlc to &istion in a pipervhi.h Narer is floNing .r a velocity of linrfr! la for which C = 60.

a. Delne Reynolds ,umber. wlat is its siCnificance? (o,]ttrrr,b. Dcrive Hagen Poiso!)le sequalion lor liscous flow dtrough acircrlaipipc. (10 trrlrr,c. An oil ofviscosny L0 pone io$s belqeen tuo parallelli\ed llates whicl are kept at a

dnknce of 50 mm apafi. Fhd rh. Bre of row of.il bcdreen rhe ptarcs it rte drop ofpEsure in a lengdoll z mbe(].3 \/cmr. The widrtr ofFlates is 200 &n. (06 Nrrrkn

a Explain lem: , Linr ii) DraBr iii) Displacenent thicknessj iv) Monentunr ratcknes.

b Deri.e rhe tems s.sonic ,.w ann supe^onic noy. [l: llH:]c. A ilat plare L5m x l.5n moves ai 50 k@tu in stationery,ir ofdensny t.t5 kghr. ll ttrccoefficient of drag and lin are 015 and 0.75 respecli\ely. Dctermine: (i) lit tbrc:(ii) dms forcq (iii) rsultant force. @s rrsrk,

10ME/AU46B

los ofhead due ro frlction i. a pipc. (t0yerr,ofdiamcter 300 mr and le.erh 50 rn nrcughns uslng: (i) Ducy\ fomula. (li) Chsz),s

(r0riirkt

IOME/AU45

Fourth SemesterB.E. Degree Examination,Dec.2ll4lJaa. 2Ol5Manutactu.ing Process - ll

!

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,.

.Z2=

z>

Notet An*erFtvEfttt 4u.!ions. .el..ti Aattea\t two cnestioasjttn eoch pa

PART A

what lre thd Gunrrtions made in Eamsr Meichant thcory'l

sh!* lr'ar. Q=--!+ ,5 9Eamr Merchanrrheofl. **er:.. l. tumiDs a stcclrod by a siven curting tool ,t a siven machinins condition under a Iivcn

enlnonmcnt, the tool IiIi decreascs liom 80 rnin to 20 mh due to increase in cuntns\eI..\ hotoo.)nrr1,,ln o 'rn Arv nr ca.n-\elo.ny,rt".oot 'ko|h,rroJundcr the sanre condirion and en!ironnienr Nill be 40 nrinutes?ExplaD witb sketches, ilann wear and crarerwear.

Discurs abour high speed steels (HSS) a.d ce,nented carbide rool naterialsconDosition, dr.ufacturing and applicarions\l z' re' p tj!ro.\ilrd'rt ts' -e.a re D Ter.t cu r. t. t \ptriaLbtin) taurdesirable proFd e. oi.urhrg roo hareaet

wirh a neatsketch, cxplaln c.iik and sloned link hechanish i. a shaper.Wiih x near sketch. erplatu lhe pafts ofa turer lattre.E\tlar thrcad cutrros oDemlion i, a larhe.

Show rhe twh drill elemenh and drltlanstes usingrqi$ dri nomenclature (06NrrldExplair $might cur and contouing NC sysrcns. (06iuerBDiscu$ about prepaiar,ry tunclions and nisceltaneous tunclrom nr a manual parprogramning. los Nr"rk,

a wbal is indeus? Menlio. diffeEnt

PART B

methods of indexins. Brielly explain

b lDdex 2., dilGions on a sork-piece using sinple indexi.g.c. E$lainanyrhreenillDsoperations.

l-\pd.1r1\ hJe.g'd t\lcc,t.:.e.rr.. ndmnEer.h Br eny c\Fl n in) n\. bondnrs procc$esc Sketch and explain sudlce ernrdnrg machine.d. Explain xrnrS and dresing olgdndine rytreels.

a. What is lheprinclpldofbrcachingl6. whatrre lhc advantases and In nar ioN o I broaching?c. Explain$ith.eai sketches, lar'ping and sup* linishins p,uu$scs.c lxplxir anylwo bioachins operarions.

a. what n rheneed olnon tradnio.atna.hining(NTM)Ih. Erplai. $ith ncar sketchcs:

i) Lllectrcnb.ammachlningii) laserbeaDmachining

of loh nson \,likokator(03 iuarL,

comparator what are ns

{03\Irrkt10.1]t3rkn

l0\{E42BlAU:l2BlTL42

Fourth Semestcr B.E. Degrce Examiniiion, Dec.2014/J.n.2015Mechanical Measurements and Metrology

z

2-

a=

PAR'T Aa.DciincnEtrolosywhatarerhe.bie.rilesofmerobg]? (rErhrk,b. Extlai. lnpcrial sandard yard" a.d hermtioml proroqpe merei'. r'irh neat skerchcs.

(l0M,rk,c. A calibuted nrctcr ond barhrs an acoallcngih ol1000.0002 ml li is usd in calibration ol

t*o ba.s A and B. esch ha\nre a basic lenglh ofs00 mm. Wben compared wit| the mererbar La L0 ryas found to be shoilerby00003 inm ln comparineAand B. it$as lou1d r|atA was0 000,1mm lorscr rhrn B. !i.dthc actuallenprh ofAand B. (05nlark,

DifeEnriarc: l) ubihtetulx bilateral toleraoces ii)clcoroncc ntond ificrfcrcNc nr(06rIerk,

Dctemide the dmcnsions olshai and hole lbraft l0 Hrft. The glveD drta3rej

= 0.1sV6 + 0 00lD di.r.ns F!.dam alde!iatn,n ror lshaft is-5 tDdLnricrons.lr] mmlalls i. rhe diatuerer sep of 18 and 10. Tolemnce grade lnr lTr a.d ITr are l6i and 25ircsncctnelr. Also desigD plug gauge lo chlck rac abo!e hole. Take \,ear allo\aDc. as 10%oftheganeeroleran.e (t0rr!rt,E\tlaib: i) Shai basissystem ii) Hole basis sy$em. (01nlxrro

Notet Ah\*et FIVE Jir q .nn'n:, :eldinllaLosr TwO quenionr fro each Dan.

\ith a neat skel.h, evlaii dr con$ruciim ald

Explain with a neat skcrch. rhc worknrs of Solex

Explanr tbe prnrcipleofslnc bnr

a. with r neal ske.ch. explain the \orking principle ofan alltocollin0ror. 106Yerk,b Deline Effecrnc diaNtci'. lxpl"in thc l{Lne me rod olfinding dE ei}e.rive diameterol

sciew threads. (03 \rark,. E\rlain wnh a skeic[, ho\r thc chordal rh]ckncs n nealrred by using gear tuorh remier

calip$. (06\trrkt

PART B

block didgmm, explain the ecncra,izcd m.asurem.nr srsteoa. Deunc mcasuEdent. wrlh !{nh a sunablc cxBmplc (03Nl,rkn

ii)hy{erensiii)s€nrtirity (06rlbrrr,eleclical tdsduc{ wirh r skerch explain auy one

(06 tl'rk'

b. Deline rrc folloNlng lerm: i) pre.ni.nc Explaln thc principle ofcapacnive rrpe

lypc ol.apacitivc mnsducer.

r\pl.ir le i'l e..n' p, bl! '. pr!.d r 'n(\di!" '.J'l'lJw,th r blockdiasmm, cxpk the Ecncmltclcnctcrins systen

Exnlai. with neat sket.hes: i)slylustrpc oscillosrrph ii)x .- v

/r:-'W,"

'.8.-

;.r^,

t0}IE42BtAA42RnL42

Stelch and erplain the ll,tioal balame (equal Em bal!.ce). 100 Mirk,E&lain low the toque is rcawed uine lrony b,?ke dy.amomr.r. what arc jtsdisadE ta8Es? 06Mr*,Desfte the workiig pdiciph ofpnani gauge with a sk tch. 06 Mark,

Stare rhe laws of thmocoupLs. (0{ rl{d.nExplain the consffElion ud working ofoptic.l prrmet6. - (03 M.rk,Defi,re gauge lilcbr Explain the wheat siom bndge amnEement for stain riealrlmmi

r! (o8Md{'

:(J_

,-i,

oo.+'-s

\l)zl.\

a

.9'2o

.i$+s'

1()NIE42A/AU42A

Fourth SeDester B.F.Material

a

,.

4.2

a:Z'i?

E

\.net A"stuet at! FlvEJaU quesnons, sele.nns aie6t TWO qkstiors r'ott .ach parl.

}ARl' . Aa Derernrine ard conlaE the atomic Dackirs l0cror ofa B C C and I..a C cry$01 strrctLtrc

rvnhEspecrofdensities. (l0m!rk,b. The densiry oi lron is 7 33 lmr.rrr x.d th. atomn {eiehr is 55.85. Calculare ns atonric

udius. (05 Nrrrktc The difl!\ion coetlicieDt ol nickel in austeniric srccl is lo:r n:,sec at 5i]l]ic and

lO 'nr:/sec rt loooic. calculate rhe acnvdtion cncrsy ior rhe difirsion ofniskel nr rhisalloy o!er dris temperaturc ranec

(0sNlrrk!)

a DraNlhenrcss shin di.emm lnra ductile materiaLand crDlaur thc mechanical properiesDelaslic aDdflastic r.gion. O0rrrrkt

b. A coppcr wne har r nonrinalbreaknre stEn-qth oll00 \4Pa llsdu.rilny is 77%rcducrioi otarca Calculltethe tme srcs for li:cruc. (o,r^{rrk,

c. DeriveucquationforcriticrlE$lvedshearstr.$ ii slip when n is mariniuml (06nlrk,

a. Detjnecrccp,wnbar$icaldeepcune,explanrrhcditire.rnagesof.reep (06rbrr,bD,ffeenccbehveenDucrileiacturco!.rBrnrtiia.luF (rurrrrr,c Explarcriffdis crirerlonofbrntle 6ac1Ltre (04 rrerldd. Dm$ the S N djagraoforoild steeland aluminiunand.xpl0in. (06 \turl,

n Erlhin the mechmism of solidincarion in pLre,tutlls !trd dcriye u exprcssion ror thccri.calsizeoftle ntrclens (o8]trrkn

b whar arc the lh.rors thd alTecr thc cast rnct $ndurel Show scnemarically. the dilibenrcast lretrl sirucrure. (06rrrr!t

c. what G , lolid solutionl Li$ rhe Hume Rorherv rulcs lbi rbe innMron olsubstuuxotulsolidsolu'ior.

PAR]" BDrawaneat sketch off. F.rC sysrem and nuvallphasc ficlds. tcmpcmtuE. conrpositionon,r. WritcdosD rbethrccrc,dioh ilrol!.d inle FerC systen (t0}rrrk,Eaplah the construction ol hvo melals is conplcr.ly soluble in liquid na.e and pdtlysolublenrthesolidsalc Gilc nrc q?ic01 cxanple (06trrrrk)A binaryalloy A 50r% B, co anr ar lanicular Lemperatue t$. solid phases o ard 8. lhccotrlposnionsof(and ll arc 5% B lnd 95% B rcspectnel! Calculale lhe amounr oldand Blndrcalloy. (orr',r$

next skerclr, the martensilic tmnslomrarion of(t0Nlrrk,

diiilrnt sudice tratmenrs wnh skerc[(t0nlrrkt

What E TT.T diagraml Exphnr wnlr o

wh.r n heat nrannent? Bieurr explain the

IOME42A /AIJ42A

b. lxplain thc etlect oldillerenr alloying elements onsteel.c. Cive the conposition and applicalion ofcopperand itsalloy

a. Dcfinca composne matnial and chssily compositc mterials aocording roi) Matr tuarenlL and ii) Rcinforceoenr materials uscd.

b. whal aE the lechniques of producing M.M.C'S? Explain bflefly.c. Listlhe advantases and application ofcomposile materials.

Corgare rhe micrc stocrure. composition! propenics and apFlication of