ies mechanical engineering paper 2 2001

7/27/2019 IES Mechanical Engineering Paper 2 2001

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j t.E.S-{ORJ) lf )Ol I ol 14

I MECHANICAL ENGINEERING J~ - = = : : : : = !PAPERII

A nll"l1 lllcility has to be designed to Jo ullthe welding for 3 products: A. B and C.Per um t \\ elding time for each product s2() s. s and :50 s respecuvely Dailydemand forecast for product A ts 450 . forB is 3(>() and for C is 240. A welding linecan operate efficiently for 220 minutes aday Numberofwelding lines required sa. 5b 4c. 3d 2

2. Consider the fo llowmg statements Comrol chart for vanables provides the

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I basic 1ariability ot the quali tycharacteristic.2 of perfonnance.3 number of products falling outside thetolerrutce limits.Which of thesestatements are correct'!a. 1. 2and3b land2c. 2and3d land3Nlatch List I wlth List n and select thecorrect answer.Lis t I (OR le.,hnique)A Branch and Bound tedlmqueB. EXpected >:tlue 3pproac-hC SmooUling and Le1ell ing0 Ex ponential distributlonU st IJ (Model)I. PERT and CPM2. In teger programmms3. Queuing theol)

Decision theo"ab,c.d

A2233

B

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Match Lis t I 11 ith List II and s ~ l e c t thecorrec1 ans\\er :Lis t lA. Decision m3king unde r completecertamtyB DecisiOn making under riskc. Decision mal..ing under completeunce rtain!)D. Decision mal.i:ng bllSed on expertopinionLis t llI. De lph i upproach2 Maxirna.x criterion3. Transportauoo model4. Decision tree

A B c Da. J lb. 4 3 2C, 3 4 2d 3 l 2During manufacture of cemenL thehandling of limestone is done bya. beU conveyorb. bucket COlli eyorc. o1erllead craned. fo rk-lifl craneConstder the tollo" ing statementsregnrdjng linear programming:I of a dual is the primal2 When two nlinimum mtios of tlte righthand side to the coel'ficienl in the key

column nre equal. degenemcy rna}place.3. When an arti ficial variable leaves tltcbasis, its C


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7. Lale;1 sun rim of 1111 1M) m 'p,\1"Ill'ida.1 dtt Cllmll110;17 Ulllllhr cx.lCllld


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b. 01e movement of in-proces materialfrom $hOp to shopc. ;outhorising prnduc(ion work order tob" launcbedtL 01c d i . ~ p a t t ' h of bills and invo ice to II"'customenlVlatch List l wiU1 List U and select lhucorrect answer.I (Charts)A. Standard process SheetB. Multiple activity chartC. Ri&hl and len hnnd nperntion chnrtIJ. Sl)\.f(Jch:ntl, ist 11 (Oper at ions/Informations)1. Op..-rntlon involving assembl_y 11ntlinspectionwitltouL mDchinc2... Opa.tjons involv ing the cumhinntionofmen nnd machines3. \Vork measurtm\.!nt-4. Basic inJj>ml:ttion li"' routingTherhligs

A B C Da. 4 3 2h. 2 4 sc. 3 4 2d 4 2 l sIf CL :mglc t>r the cutting I I, +is the shear 31111le nd V IJ1e cuttingveloc ity. fucn Ute velocity of oltip sltdrngalong the $her plllne is given by

Jcos an. "''*! -b. flsin a

c - o s ( -reometcr holesA B C D

a. 1 3 2 4b. 2~ l 2 J 4d. 2 3Dry and compressed i< ud os cullingfluid for machininga. steelb. aluminiumc. cast irund. bras.For uf brnss with sing.le-pumlculling tool on a la the. lnol should havea. Ncgotivc rllke angleb. pooitive nglec. zero mkc angled. zcrn s ide re lief :1nglcPower consumption m mct..1J cutting ism>in ly due toa. tangential componen t of the foNeb. longirudinl COI111l0nc>nt nftle forni>mc. Ratchet and P.JWI rnc.:banismd. WJ!dLC


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:,inuh eJJ'ect iu welding tho rosu Uofa. ~ p a 1 1 S i o n ofgMes in the areb. eleelrotu>gne tic fcwees" ' ci


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Tile billet is inserted into lite c x l r u ~ i o nc.hnmber when; it is surrounded b)suill!ble liquid. The billet js e ~ l n l d c dlltrough il1c die by .tping prcssllo'e to!he liquidSe lect tha corn;,c1 '3nswer usmg tie codesgiven below:n. I nndb I a n d ~c.. 2 .3d. 2 ;mdlbo spindle speed range in a n ~ 1 1 1 1 -

p u r p o s ~ lalhc i dividco tCJl" whkhnppro)limnlely l'ollowu. aritlunetic progressionb gcomctrlc progressionc, hnnnonic r o g : r e s ! i n nd. logarithmic p f Q g r e ~ i o nrhe Indexing of lhe llln'et in a ieno.. o.cceleraredb. lrotnsient, Rteady stnle, acceleratedc, traruoiont. accclerllted. steady st.1ted. aacelerafed.,


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rwo Identical springs laoolled as Q) andQ) arc armnga 'l11c m a . ~ m J U m shearisa. 25 Ml'ab :.\5 MPa

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...-. 55 Mruroc diS1ribution in the beam isrCJ>rCSCnted h)a.

A cLI__ Jieb.

A'-____ _JI EA --=:::::::::j Ed. A ~

cA t h i ~ : k ~ . : y n i ! e r i$ 10 intmmlpressure oi' 100 N/mm- It hoop stressdeveloped m the ouror radius of thecy linde r Is N/mm2 the hoop stressdeveloped mlhe inner radius isa. I 00 N/mm 'b. 200 Nlmm'c. 300 N/rnm1d 400 N/mm1l be outside diameter of a hollow shaft istwice thal of its ins ide dioo1e1er. 111etorque-carrying capacil) of 11is shaft isMt,. A solid shan of the same malerial hasditm1e1er equa l 10 llw muside diamelerof the hollo" shall The >


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ca rry a torque of !\Ih. The rolio Mit M11is . 15 16b. 314\), 12II 1116

S1. Which une of the fo llowing (>.1irs iscorreclly match

59. rumptlling' quenched manen.., lic steelis u t) t


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. ,_lto-fI .. IJ;" 1T" . - tI i?f>-----1hot beuriog of rudius r. thefricti


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-1. x/6A B C Da. 4 I 2 3b. 2 3c. 4 J 2 Id. 2 I 4 3

74 . ~ ~ 1 i d 1 uf o w i n ~ ; pair> or devicesand their litnctions artn

A B C Da. 4 3 2h 2 J ~c, 3 4 I 2d. J 2 4

76. Force required to nccclcrute a cylindricalhod) which rolls without slipping l1n 11horizontal plano (mass of cyl indrica l l>odyis m. mdit.s of the cy lindrica l surface incontact "ilh plane is r. rod ius of gynniunof body is k and accekrution of he body ia. m ~ + I ) ab. ( ~ ~ I . a"- 1 1 1 ~ \1d (mk1 1 r "" II. a

77. Co nsider Jbllowing statemenL>regarding mutlons in m a c h i n e . ~

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4 ur lTangemial accclcra!lon is a function ofangular w loc ity and the radialacc.clcrm ion is a functio n of nngu laaccclcrntion.2. The resuhnnt acc.elenuion uf a point Awith r e ~ p c c to a poi111 l l on a rotatinglink is l>crpundicular to AB3 The direct inn of the rdmile velocity ofa poon t A with respect to a poinl B on orotating link is perpendicular to AB.Which f th.:.


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b. OPSTc. UR\Vl'cl. ORPT11lc spigot of a :.: times thepenui.siblc tensilc s !J..,ss for tl1c watdalof spigot where x > I. ' 11 c joint car.rios .tJInxiJII load P. Which ooe of the followingequations wiJI give the diameter of tl>espjgo t?a. D = ~ f x- 1

fTt:r,

b. D 2 ~'f(Tr .t-2 ~ p . t lc. D =-JT a .,. ~

II 2P . f i0D- -11a:

nc scr"'' .md nut in boooching macl!i!ldarc cl>Qngcd from >quro thread 1.0 ACJtlethread. n.c powor retluiremeni of the~ ~ W c h i n c at the . decreasec. increased. depend on dto operatorThe creep in a bell drive is due to Uteu. mat criol ofth ctween lite radii of the basecircle and dcdc111lttm circle.Wh1ch of th""e statements "'" correct'/a. I. 2 and 3b, 2. 3c. l.:; and 4d. l, 2>nd 4A body ofmMs on and cad ius of 1::is to be r"l'laeed by h'o "'"" m1 and m1loeilted at dlst.-.nces h, and h, from U1c COof U1c original body. An e


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89 !vlatcb list I with List 11 .1nd thoIUlJTeOII tl1 [l'aWio l>n a rough n l>dw unduJuljuns hu u m c d lu be-tho re>


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base-c.xcited vibrations. determined bythen. m ~ s s of lhe vehicle stiffite.,s of thesuspension spring, speed of U1e

vehicle. wowllnlj!th of tho rougbni:Sscurve

h speed of he vclucleonlyu. speed of he whide :JJld lhu s tillh""s of11le sus1>ension springd. amplitudeof he undulntions

D u i n ~ torsional vibtution of a shaf\, t.hcnode is clwocteri7,ed by then. mnxm1um angular velocityll. ma.ximum n n g u l ~ displacementc._ m.1.ximum angular c c e l e r a t i o od. zero :111gulnr c l i ~ p l n c e m c n ll\'lotch List I ( B e a r i n g ~ ' ) wiU1 Lisi U( \pplic41tions) and se lect the correct;answer :List 1A. ('ylind rica l roll.,1:1. lh ll-bcaringr Tnper rulling bearingD. Aogulnr contact bnll-boaringList nl . Radial loads2. M>chinc uecds (r


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lilllowing s tatements correct for thet>earing'la. / is directly proportiona I to I ' and pb. f is directly propootiol11ll 1o f! lllld Nc. f is v c n o c I""Prtithe corrcet C>"planation of i\c.. A is true but R i< false11. A i f>lsc but R .is true

110. ;\sscrtion [A) . In dosigu of nrms of pulle) , in belt olri,e, the cm!


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o. Both A unci R nrc l l \ le und R ;,. thecorrect explanation or Ab. Both A and R ore true but R is NO ' I'lhe coni!d cxplomation ofAc:. A is true but R is f a l ~ ecl. A is false hut R is tnoe

112. A s ~ e r t i o (A) : Di:tmond 100 Is can usedtilhli h sp ecdo.ReMOn !R) : Diamond too ls haw very 161\

t l i ~ . : i c n t of ricliun.a. Both A and R lnoe and R is

correct explollllllon ofA1>. BoU1 A and R arc U'U< hut R i3 NOTthe correctexplanation of IIc. A is lrue bu1R ts folsc11. A is J' IMc but R. i> ttuo

113. Assertion (. \) . !lard w h ~ o l s ore chosud forgrinding hnrd m

ies mechanical engineering paper 2 2001

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