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JMD, 42) ~, , cllg;4"S(i1, , COT zyrrq, , (5l"~R) -qr:rr, , ;sm:rr %, , 1) ~~4'lc{, , 2) ,3Wfir ~, , 3) 61~~lqlC:<, , 4) ~1~£i)4h~(, , 43) The force exerted by a jet of water on a moving vertical plate, in the direction of motion of plate is, given by, 1) e a v?, , 2) e a y3, , 3) e a (v-u)?, , 4) e a (v-u)", , 43) ~,, , ~, , trRT ~, , ;:ffc, , &m ~, , M, , ~,, , ~ crrffi ~ ~, , 1) e a y2, , 2) e a v3, , 3) e a (V-U)2, , 4) e a (Y-U)3, , t#tc;, t#tc; ~, , l1T~R c5t m~TT if, , imT, , %1, , 44) In case of laminar flow, the loss of pressure head is, 1) Proportional, , to (Velocity?, , 2) Proportional, , 3) Proportional, , to (Velocity)Yz, , 4) None of the above, , 44) ~, , 1), , qmq ~ ~, , if, , Q-~R~, , q)f ~, , mm~f;wrCfiT (lTfu)2, , to velocity, , %, 2), , mm~f;wr qIT, , 7Wf, , 4)~~~, /', , 45) The-power transmitted through the pipe is maximum when head lost due to friction in pipe is equal to, 1, , 1, , 1), , 3", , 3), , "5, , 1), , !~~~, 3, , 2) ~ ~, 4, , 3), , !~~~, 5, , 4) ~ ~~r$jl{, , of total supply head, , 2), , "4, , of total supply head, , ,(4), , '8, , 1, , 1, , of total supply head, of total supply head, , 46) The energy loss in a pipe line is due to, 1) Viscous action only, 2) Surface Roughness only, 3) Friction offered by pipe wall as well as by viscous action, 4) None of the above, , 12, \, , 12 - .:., , 12, , ~!'~1
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JIvlD, 46) ~, , -,', , r-:, , "\ r-;, , 11 0)\Jff sm ~, , ~, , 1) ~, 2), , r, , ~~Ff, , ~cm~m, , 3) &cf~R ~, , :;, Q, , rot, am, , fc8n, , ~l", , m~ #r m~ ~, , 'l<:fT, , ~~Ff, , 4)~~~, , 47) The loss at the exit of a submerged pipe in a reservoir is, v2, 2) 0.5 2g, , 1) 0.1-, , v2, , 2g, , 3), , 47) ~, , 4) Negligibly small, , 2g, R\J1Fl1<:n ~ ~,, , ~Gl4CJf:s ~, , rn: ~, , ~ ~, , v2, 1) 0.1 2g, 3), , v, , (~), , %, , v2, 2) 0.5 2g, , 2, , 4) Wfq'T ~, , 2g, , -mer, , 48) In a pipe flow the boundary shear stress is related to friction factor f and mean velocity v as, 2, , 2, , 6, , 2, , 4) f, , 3) f ev, , 8, , 1), , 3), , 2), , 2, 2, , fev, , ev, , 2, , 4, , 11, , 2, , fev, , 2, , 2) f ev, , 1) f ev, , f ev, 6, , 4) f, , 8, , 2, , ev, , 2, , 4, , 49) A turbulent pipe flow is said to be in the transitional regime, if the friction factor, , 1) Independent of Reynolds number, 2) Independent of relative roughness, 3) Independent of both Reynold number and relative roughness, 4) Dependent on both Reynold number and relative roughness, 49) ~, , tfViTif, , c{CLJi;cqffi, , 1) ~fSrq~c ~, ~, 2) ~\%rq.gc ~, ~, 3) ~fSrq.gc ?J;n, ~, 4) f%q~;c ?J;n rn: ~, 12· .:., , ~~Ff, , ~, , ~, , if, , Cf)Q\TIldl ~ ~, , crm ~, ~, ~ crm ffitRq ~, , ., 13, , &cf~Ff ~, , To
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J]VID, 57) With regard to hydraulic ram, which of the following statements is incorrect, 1) It works automatically, , 2) It requires very little maintenance, , 3) Its running cost is high, , 4) It has no moving parts, , 1), , (fQ, , ("Cli:lIWtct, , 3), , ~~~~%, , cnm ~, , %, , 2) ~, , m Cfi11 ~, , ~, , ~, , %, , 4) ~~m~GTt~%, , 58) Discharge through a double acting reciprocating pump is given as, 2) ALN, , 1) ALN, 60, , 120, 3ALN, , 3) ZALN, 60, 58) ~, , 4), , 1(11sil4iRolI ~, , ~, , m-ctT %, , if ~, , 120, , I, , 2) ALN, , 1) ALN, , 120, , 60, , 4) 3ALN, , 3) ZALN, 60, , 120, , I, , 59) Reciprocating pumps are most suited for where, 1) Operating speeds are much high, , I, I, , 2) Constant heads are required on mains despite, 3) Constant supplies are required regardless of pressure fluctuations, 4) None of the above, 59), , 1fIISi)4iRll, , ~, , 1) i3ilq1Rll, 2) CfiI«Z, , 'lffi W ~ %, %3 ~,, if:m c#r ~,, , 3) CfiI«Z, , ~, , 4), , i3)11{, , U~, , ~, , ~, , ~,, , q)]1{, , ~, , i3WfT, , %, ~, ~, , if, , II, , I, , lk'i<'.f6f~!1R ~ ~, , ~!1R Lk'11<'.f6f~!1R, , I, , ~, , 60) The delivery value while starting centrifugal pump is kept, 1) Half open, , 2) Fully open, , 3) Fully Close, , 4) in any position, , 60) B~q:q;lii'I~, 1) i3TIm ~, 3) ~, , q;c:, , \i'j'q ~, , c€r ~ cnm %, , I nq ru~"ICj{) ~, , ~, , \ilTill, , 2) 'iU ~, 4), , 1~, 16, , fcR:IT, , m wmt, , if, , %, , I
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JMD, 65) The compression, , 65), , c.r., , ratio used in a high speed, , engine is of the order of, , 1) 4, , 2), , 3) 12, , 4) 20, , .-ffiT, , \j'E'q, , m.~. ~, , if, , t1Tir, , ~SR, , iTill ~ ~, , 8, , ~, , 1) 4, , 2) 8, , 3) 12, , 4) 20, , if, , 66) Morse test can be easily applied to determine LP. of, , 66), , 1) Single cylinder c.r. engine, , 2) Multi cylinder c.l. engine, , 3) Single cylinder S.I. engine, , 4) Multi cylinder S.l. engine, , -qrn ~ ~, , U Cf)111it ~, , i3lBRT, , \JffdT, , %,, , 0n{-qr-0ll'f), , 1) ~, , ~, , m.~. ~, , 2) ~·fB<il;g·{, , 3) ~, , ~, , D;U.~., , 4) ~, , ~, , m.~. ~, , ~<il;g{ D;U.~., , 67) Air cooling of engines is preferred because, , 1) It is compact, , 2) It is mOte, efficient, , 3) Cooling rate can be controlled, , 4) None of the above, , 67) ~, , 1), , .., , if crrg ~, (.jQ, , ~ ~, , cfr, , \JffiIT ~ ~, , q) I"""F.fcr %, , 3) iST ~, , c5T ~, , Cf)f ~, , 68) The Lubrication system is used to, 1) Decrease F.P, . 3), , 4) All of these, , Lubricate the components, , d~~tl~, , 68) ~~R, , fm:cB Cf)111if \3ITill %1, , 1) ~.qr.'tRRT, , 3) q)'"""ll~'c ~ ~, , ~, , 69) The Silencer of an Internal Combustion, , Engine., , 1) Increases brake specific fuel-corisumption, , (BSFC), , 2) Has no effect on its efficiency, 3) reduces noise, 4) decreases BSFC, , 1:, , \, , 12 -, , +:+, , 18, , .~, , ~
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Jr~1D, 69), , ti, , s;:cc-wr, , Cf)lq~R, , 1) ~, , {ilmN1Gfi ~, , 2) ~, , ~~i~'BI, , 3) ~, , 'C:lCAT, , it, , ~, , BI~#l~:H, , (BSFC) ~, , ~~R, CR ~, , 4) m.rw.l:%.m (BSFC), , ~, , ercffi %, , 70) Knocking tendency in a Spark Ignition engine reduces with increasing, 1) Engine Speed, , 2) Compression ratio, , 3) Wall temperature, , 4) Supercharging, , 70) ~, , it ~, , ~, , ~, , crcill ~,, , \J{q ~, , %, , 1)~'Tffi, , 2) ~~R, , 3)~~, , 4)~~, , mlZIT, , 71) Supercharging of LC. Engine is essential for, , 71), , 1) Stationary engine, , 2) Marine engine, , 3) Air craft engine, , 4) None of above, , ~.m. (I.e.), 1), , ~, , it, , (£4{f.!IMlI, , ~, , mm ~, , -R~'Rft~, , 3)~~~, 72) A gas turbine fycle with infinitely large number of stages during compression and expansion leads to, 1) Sterling cycle, , 2) Ericsson cycle, , 3) Atkinson Cycle, , 4) Brayton cycles, , 72) ~, , W, , c",ql~'1 ~, , ~, , 0i'1fTF1d, , -qtf ~, , ctt ~, , mm t, , ~~R, , i3fR ~~R, , Cflclt ~, 1) \t:{Mll ~, , 73) With increasing temperature of intake air, I.C.engine efficiency, 1) Decreases, , 2) Remains same, , 3) Increases, , 4) Depends onother factor, , 73) ~, , Cl'T9;Cf)f crr:JllR, , 1) t{Cill ~, 3), , ~%, , m CR, 0l1t.m., , (I.C.) 0JR ctt qqj)m~4, 2) fll1R ~, 4) ~~CR~Cl?@~, , 19, , %, , ~, , m, ~
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JMD, 74) In centrifugal air compressor the pressure developed depends on, , 74), , 1) Impellertip velocy, , 2) Inlet temperature, , 3) Compression index, , 4) all of above, , ?l©~I~ ~ ~, , Rq-, , 1) ~, , ii,, , CTGf, , (~~n:) sqMq, f.fl:h, , 1@r, , CR(IT %, , 2) ~, , 3) ~!{I-;:r ~, , ~, , cmif B'lft, , 4) ~, , 75) If the value of poison's ratio is zero then it means that, 1) The material is rigid, 2) There is no longitudinal strain in the material, 3) The material is perfectly plastic, 4) none of the above, , ffiTtil, , q)f l1R (~, , 1) 4~R'Q~, , ~, , %, , 2) 4~R'Q~, , i{ ~lrln~qf%1~"$1 ~, , 3) 4~R'Q~, , "TIT, , 75) ~, , ~, , (l"W 'k'l1\«CfJ, , ~, , t ~~, , l1<lWf £\3lT ~, , %, , %, , 4) ~~~, , 76) The ratio of maximum shear strain developed in beam of rectangular action to that of average shear, stress i~, 1) 2, , 2) 1.5, , 3) 3, , 4), , 76) 0i1'QdlCbI{ ~~R, , ~ ~, , q)f ~, , 1, , ~W:R@~, , ~, , 1) 2, , 2) 1.5, , 3) 3, , 4) 1, , q)f"d"~, , ~Tr:n:@, , ~, , q)f, , %, , ?:r~T'1Oll~, , 77) The strain energy stored in a simply supported beam of length L and flexural rigidity EI due to a, central concentrated load W is, 1) W2U/48EI, , 2) W2U/48EI, , 3) W2U/96EI, , 4) W2U/96EI, , 77) ~, , ~, , ~., , ~, , ~, , L q#jcfcg~ Rfulwfl EI Cb«J)'Qqld, , W2U/48EI, , 2) W2U/48EI, , 3) W2U/96EI, , 4) W2U/96EI, , 1), , 20, , ", , Ws, , W, , t, , "$1 ~, , ~, , mT
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JMD, 78) The Euler load for a column is 1000 KN and crushing load is 1500KN. The Rankine load is equal to, 1) 600 KNj, , 2) 1000 K~, , 3) 1500 t..:l~, , 4) 2500 KN, , 78) qc5 CfiWIll, , em ~, , ~, , 1000 KN, , om ~M, , @s 1500KN, , 1) 600 KN, , 2) 1000 KN, , 3) 1500 KN, , 4) 2500 KN, , ,, , %, ~, , Rrs, , .l, , m-, , 79) Bending moment M and torque T is applied on a solid circular shaft. If the maximum bending stress, equals to maximum shear stress developed, then M is equal to, 1) TI2, , 2) T, , 3) 2T, , 4) 4T, , 79) qc5 ~, , ~, , ~TNC 1R ~, , ~.fclC/?fBd, , M, , ~, , m-, , :2:'* ~W:R @ ~, , om, , \IfTdi, , ww:rr, ~M ~, , CRCf) T, , t, , 1) T/2, , 2), , 3) 2T, , 4) 4T, , \IffifT, , m-, , %1 ~, , ~, , ~n~ll, , @, , T, , 80) In a thin long closed cylindrical container, the fluid pressure induces, 1) Only hoop stress, 2) Only Longitudinal stress, 3) Longitudinal stress equal to twice hoop stress, 4) Longitudinal stress equal to half the hoop stress, , 80), , m., ~ ~, , fB~1JC/?~~, , :2:'* ~, , if, ~, , ~~R ~, , l)m~@, , 2), , m ~1;:Jn~qf%'1~@, , 3) (11\rift~<t~i1\'j~, , ..~, , c, , .~ ..~., , ~, , 4) (i11~~~qi%W~i"~i~klcH l~l~, , @, , .$1, , 81) Ratio of average sfrearsltr~ssiio)t1i~;1rtaxlfnu'm, shear stress ih a:beam with require cross section is, , 1) 1, , 2) 2/3, , 3) 3/2, , 4), , 81) ~, , cW=r ~., , ~, , Wf~R~, , %~, , ~, , 2, , ~W:R @, , 1) 1, , 2) 2/3, , 3), , 4), , 312, , 21, , 2, , om ~, , ~fu:n: $, , CfiT, , mvn WIT, , q
Page 22 : JM]), 86) The coriolis component of acceleration, , is taken into account for, , 1)~Slider crank mechanism, , '"') Four bar chain mechanism, , 3), Quick return motion mechanism, , "'>, , cnliT~, , 86) lJ>CR:1"l~<~Rq)T, 1) ~, , ~, , ~CbH'fY, , men ft:c;f, , 3), , Cf)01~< cnl, , CQTl1, , none of these, , if #fa t, 2) qp:, , l:ft~R 4CbH'fY, , qn: ~, , 4) I£Y{ ~, , ~CbH'fY, , ~, , 87) The efficiency of a screw jack is maximum, when, 1) ex:= 4S, , 3), , oc, , + <p, , 2) ex:=4S--, , 2, , 2, , =90+<p, , 4) ex:=90-<p, , 2) ex:=4S--, , 3), , = 90+, , DC, , <p, , 4), , <p, , oc, , <p, , 2, , = 90- <p, , 88) The power transmitted by a belt is maximum when the maximum tension in belt (T) is equal to, Tc, , = Centrifugal, , 88) ~, Tc, 1), , Tension, , m-u ~1~lOjlc C@ ~, , r, , ~,, , ~, , ~ \jfq ~, , ?tt ~, , ~~R, , e~R, , €\el'~l«t, Tc, , 89) The factor which effects the critical speed of a shaft is, 1) Diameter of the disc, , 2) Span of the shaft, , 3) Eccentricity, , 4) all of the above, , 1) ~, , q)T, , am:r, , 3) Q<ffi{\fBEl, , 12 - .:., , 23, , (T) ~, , iRIT, , %,
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JMD, 97) In which graphic terminal selective erase is not possible, 1) Direct beam refresh, , 2) DVST, , 3) Roster scan, , 4) All of above, , 97) ~, 1), , mf1tcn c<4H~ if ?1#tfcfcCl ~, mm cfr:1 fufi~T, , W=!q ~, , ~, 2), , 3)~~, , tt en-~ it, , 4)~~, , 98) Which of the following is not a part of CAD hardware., , 98), , 1) Graphic display terminal, , 2) Keyboards, , 3) Computer programme, , 4) Peripheral equipment, , R9 if B ~, 1) mf1tcn ~, 3) ~, , ~, , ~, , q?T, , fm:m ~, , ~, , c<41'1~, , 2), , c6t -~"\, , I, , "', , 4) q {)(b(~, , cWtbli (~), , I, , r, , ~qCf)<OI, , II, , 99) Platter accuracy is measured in terms of repeatability and, 1) Buffer Size, , 2) Resolution, , 3) Intelligence, , 4) Vertical dimension, , qcp{h"11 ;wft, , 99) ~, , \Jffifr, , t ~Clfu, , 0m?, , fNk~~lt10fu:, , ;, , 1) ~,,~, , 2)~~R, , 100)ACamot cycle refrigerator operates between250k and 300k. Its coefficient of performance is, 1) 6, , 2), , 3) 1.2, , 4) 0.8, , 100)~, , ~, , ~, , ~Cflfl\Jl~c< 250k ~, , 5, , 300k ~ ~.~, , 1) 6, , 2) 5, , 3) 12, , 4) 0.8, , q){ffi ~, , I WCbT ~~, , 0m? q{lfiHil'-(1 ~, , 101) For the same compression ratio, the efficiency of diesel cycle as compared to the otto cycle is, 1) Less, , 2) More, , 3) Equal, , 4) None of the above, , 1), , "Cf)11, , 3) ~, , 12 - .:., , 26
Page 28 :
JIVID, 110)Diesel cycle consists of, 1) Two adiabatic and two cons' 'nt volume process, 2) Two adiabatic and two constant pressure process, 3) Two adiabatic, one constant pressure and one constant volume process, 4) Two isothermal,, , 110)~, 1), , 2), 3), , one constant pressure and one constant volume process, , it m-at %, , ~, , m ~g)~CiRCf) ~ m Cf)H:~'"Ci3ffiRR, m ~Sl~~feCfi, m ~i14CifeCfi, "\, , 0ffi, , m cnl~'"C, , ~, , GflI«<:Z ?r!m ~, , "\", , ~, , ~~R ~, ~, , ~"\", , 4) CJ 0i1~~k1i41'4, ~, , Cfil Z >l~R J1R ~, , Cf)1~Z, , ,~, , ~, ~, , "\, , CfiI<=I;CZ~, , 1'11"'1"-11, , 111) Brayton cycle consists of sets of process, 1) Isentropic, , and constant volume, , 2) Isentropic and constant pressure, , 3) Isothermal, , and constant pressure, , 4) Isothermal, , 111)~, , ~, , 1) 0i1~~;ilfqCfi, , 3) ~, , if ~, Jfn:, , ~, , -&m ~, , ~ ~, CfiH~Z ~, , ~, , CfiI~Z, , and constant volume, , 2) 0i1~~;;lyqCfi 8fR GflI~Z, , ~~R, , 4) ~, , Jfn:, , ~, , ~~R, , CfiI~Z, , 112) White metal is an alloy of, 1) Copper and Zinc, , 2) Copper and Tin, , 3) Copper, Tin and Zinc, , 4) Copper, Tin and Antimony, , 112)~, 1) ~, , mg, ~, , ~, , i3fR ~, , 3) ~,, , R'1 I3fR ~, , re.,, , 2) ~, , ~, , 4) Cf)TtR,, , re., 0ffi, , ~;€Il1;:fl, , 113) Pressure of cobalt in steel improves its, 1) Cutting ability, , 2) Corrosion resistance, , 3) Tensile strength, , 4) None, , c8 ~, , 113)"RWr ~ ~, 1) ~, , tT q<if)Mc?t, , 3) ~, , $r£l, , 114) Carbon percentage, , B-, ~, , irm ~, 2), , chl €I\iF1 ~M (G'+i, , 4) ~~, is same in cast iron and, , 1) Wrought Iron, , 2) Pig Iron, , 3) Mild Steel, , 4) High Silicon, , 29, , ~
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JMD, ctr ~~TffilT, , 114) ~, , w:rR ~ CflRG3ITlfB, , .3ffi, , 1) W:~, , 2), , fqTr .~, , 3)~~, , 4), , ::jUT, , fB~;ICbH, , 115) Which key permits axial movement as well as transmits a turning moment?, , 1) Feather key, , 2) Parallel Sunk key, , 3) Saddle key, , 4) Woodruff key, , l1S)$R, , m~, , 1) ~, , ctr, , 3) ~, , ctr<>, , (key) qFcR1iq~ ~, .>:, , it_m~ cf.:PT 111iR ciT ~14;lfqc cnB rir ~, 2) ~, Ben ctr, 4) ~, , ~, , ctr, , ] 16) Which of the following is Trapezoidal thread, 1) Acme, , 2) Square, , 3) Buttress, , 4) all of above, , 116) R9, , it B ~, , ~(hll~s~, , ~, , ~, , mrn, B'lfr, 4) ~, , 1) ~, , 2), , 3) ~, , 117) The longitudinal joint, in a boiler shell is, usually, ., 1) Butt joint, 2) Lap joint, 3) Butt joint with two cover plates, 117)~, , ~t;r CfiT ~1;:Jn~qj%'1~~,, , 1) qc ~, , 4) Butt joint with single cover plate, flIYIOiq~: mrr, , %, , 2), , #tq- ~, , 118) Cavitation is caused by, 1) High velocity, , 2) Low barometric pressure, , 3) High pressure, , 4) Low pressure, , m CfiT q)R1JT ~, , 118) W~R, , ?, , 1) ~~, , 2) C!)11 ~<I~~C!), , 3) ij'eq GJCf, , 4) C!)11GJCf, , GJCf, , (~~R), , 119) Highest air-fuel ratio is found in, 1) Open cycle gas turbines, , 2) Two stroke diesel engines, , 3) Two stroke petrol engines, , 4) Four stroke diesel engines, , 30, , ~
Page 30 :
JlvlD, «., , 2), , 1) ~~Tffi~, -,, , -,, , ~\"'\, , 3) GJ ©Cfi ~, , ~, , 4), , ©cn~~, w ~ ihl1(rf, ~f, , 120) The firing order for a six cylinder engine is, 1) 1-6-2-5-3-4, , 2) 1-5-3-6-2-4, , 3) 1-2-5-4-3-6, , 4) 1-3-2-6-5-4, , 120)3: ~, , ~, , Cf)f ~, , ~, , ~, , 1) 1-6-2-5-3-4, , 2) 1-5-3-6-2-4, , 3) 1-2-5-4-3-6, , 4) 1-3-2-6-5-4, , 31, , ~
