SERIES – A

PAPER – II

MECHANICAL ENGINEERING

Number of Questions

Timing Subject Code

120 (121 to 240)

11:35 Hrs. To

13:05 Hrs. 135

DO NOT OPEN BEFORE 11:35 AM

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MECH-135 [A–17]

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121. The molecular weight expressed in gm (i.e. 1 gm mole) of all gases at N.T.P. occupies a volume of: (1) 22.4 litres (2) 29.27 litres (3) 427 litres (4) 848 litres

121. N.T.P ij lHkh xSlks ds Gm ¼vFkkZr 1 gm eksy½ esa vfHkO;ä

vkf.od otu buesa ls fdruk vk;ru ysrk gS%

(1) 22.4 yhVj (2) 29.27 yhVj (3) 427 yhVj (4) 848 yhVj

122. Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant: (1) Pressure (2) Temperature (3) Volume (4) Internal energy

122. fdlh cUn ra= esa iw.kZ Å’ek esa ifjorZu LFkkUrfjr Å’ek ds cjkcj

gksrk gS ;fn mRØe.kh; çØe buesa ls fdl fLFkj voLFkk ij gksrk gS%

(1) nkc (2) rkieku (3) vk;ru (4) vkUrfjd ÅtkZ

123. A house requires 60 M cal/hr in winter for heating. Heat pump absorbs heat from cold air outside and requires 8 M cal/hr of work. The COP will be: (1) 0.75 (2) 6.5 (3) 7.5 (4) 15

123. lfnZ;ksa esa Å’ek ds fy, fdlh ?kj esa 60 M cal/hr dh vko”;drk

gksrh gSA Å’ek iEi ckgj dh BaMh gok ls Å’ek dk vo”kks’k.k djrk

gS rFkk bls dk;Z ds fy, 8 M cal/hr dh vko”;drk gksrh gSA COP buesa ls D;k gksxk%

(1) 0.75 (2) 6.5 (3) 7.5 (4) 15

124. If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the %age increase in efficiency will be: (1) 4% (2) 8% (3) 14% (4) 27%

124. ;fn fdlh vksVks&pØ ij dk;Z dj jgs batu dk lEihMu vuqikr 5 ls 7 rd c<+rk gS rks mldh dk;Zdq”kyrk esa çfr”kr o`f) fdruh gksxh%

(1) 4% (2) 8% (3) 14% (4) 27%

125. Which device is used in thermal power plants to reduce level of air pollution: (1) Induced draft fan (2) Chimney (3) Electrostatic precipitator (4) Pulveriser

125. ok;q çnw’k.k dk Lrj de djus ds fy, rki “kfä la;U=ksa esa fuEukafdr

esa ls dkSu lh ;qfä ç;ksx dh tkrh gS%

(1) çsfjr çokr ia[kk (2) fpeuh (3) fLFkj oS|qr vo{ksfi= (4) pwf.kZ=

126. For a given steam temperature of 850°C and vacuum of 0.1 kg/cm2 absolute, the Rankine cycle efficiency will be maximum when steam pressure is: (1) 100 kg/cm2 (2) 200 kg/cm2

(3) Critical pressure (225.4 kg/cm2) (4) 350 kg/cm2

126. fn, x, 850°C ds Hkki rkieku rFkk 0.1 Kg/cm2 ds iw.kZ fuokZr

ds fy, jSfUdu pØ n{krk vf/kdre gksxh tc ok’i nokc gksxk%

(1) 100Kg/cm2 (2) 200Kg/cm2

(3) ¼ØkfUrd nkc½ 225.4Kg/cm2 (4) 350Kg/cm2

127. One ton of refrigerator is equal to the refrigeration effect corresponding to melting of 1000 kg of ice: (1) In 1 hour (2) In 1 minute (3) In 24 hours (4) In 12 hours

127. ,d Vu dk ç”khfr=] ml ç”khru çHkko ds cjkcj gS tks 1000 fdyksxzke cQZ ds xyus esa le; ysrk gS%

(1) 1 ?kaVk (2) 1 feuV (3) 24 ?kaVs (4) 12 ?kaVs

128. When a mixture of air and water vapour is cooled at constant pressure upto saturation temperature of water vapour, the temperature attained is known as: (1) Dry bulb temperature (2) Wet bulb temperature (3) Dew point temperature (4) Critical temperature

128. tc ok;q rFkk ty ok’i feJ.k dks ty ok’i ds lar`fIr rkieku rd] fLFkj nokc ij “khry fd;k tkrk gS rks çkIr rkieku dks buesa ls

fdl :i esa tkuk tkrk gSA

(1) “kq’d cYc rkieku (2) vkæZ cYc rkieku

(3) vkslkad rkieku (4) ØkfUrd rkieku

129. If a ball which is dropped from a height of 2.25 m on a smooth floor attains the height of bounce equal to 1.00 m, the coefficient of the restitution between the ball and the floor is equal to: (1) 0.25 (2) 0.50 (3) 0.67 (4) 0.33

129. fdlh fpdus Q”kZ ij 2.25 ehVj dh Å¡pkbZ ls fxjk, tkus ij ,d

xsan 1.00 ehVj Å¡pkbZ ds cjkcj mNky ysrh gS rks xsan vkSj Q”kZ ds

chp çR;oLFkku xq.kkad buesa ls fdlds cjkcj gksxk%

(1) 0.25 (2) 0.50 (3) 0.67 (4) 0.33

130. Two cantilever beams are of equal length. One carries a uniformly distributed load and other carries same load but concentrated at the free end. The ratio of maximum deflections is: (1) 5 / 6 (2) 2 / 3 (3) 1 / 2 (4) 1 / 3

130. nks çkl /kj.kksa dh yEckbZ leku gSA ,d leku :i ls forfjr Hkkj ogu djrh gS vkSj nwljh Hkh ogh Hkkj ogu djrh gS fdUrq og Hkkj

eqä fljs ij ladsfUær gSA vf/kdre fo{ksi vuqikr gS%

(1) 5/6 (2) 2/3 (3) 1/2 (4) 1/3

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MECH-135 [A–18]

131. The function of a fuel pump in a petrol engine is to: (1) Inject fuel into the cylinder (2) Supply fuel when carburettor fails (3) Pump fuel so that it reaches carburettor (4) Improve thermal efficiency

131. isVªksy batu esa bZa/ku iEi dk dk;Z gS% (1) flysUMj esa bZa/ku vUr%{ksfir djuk

(2) dkcqZjsVj v{ke gksus ij bZa/ku dh vkiwfrZ djuk

(3) bZa/ku dks iEi djuk ftlls fd og dkcqZjsVj rd igq¡p lds

(4) rkih; n{krk esa lq/kkj ykuk

132. A piece of wood having weight 5 kg. floats in water with 60% of its volume under the liquid. Determine specific gravity of wood: (1) 0.83 (2) 0.6 (3) 0.4 (4) 1.67

132. 5 fdyks otu dk ,d ydM+h dk VqdM+k tc ikuh esa rSjrk gS rks blds vk;ru dk 60% Hkkx æo ds vUnj jgrk gSA ydM+h dh

fof”k’V xq:Ro fu/kkZfjr djsa%

(1) 0.83 (2) 0.6 (3) 0.4 (4) 1.67

133. A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1000 kg. The force required on the plunger is equal to: (1) 10 kg (2) 100 kg (3) 1000 kg (4) 10,000 kg

133. fdlh æopkfyr nkfc= dk jSe dk 15 ls-eh- dk O;kl rFkk Iytaj dk 15 ls-eh- dk O;kl gSA bls 1000 fd-xzk- Hkkj mBkuk gSA Iyatj ij ckafNr cy buesa lsa fdlds led{k gksxk%

(1) 10 fd-xzk- (2) 100 fd-xzk- (3) 1000 fd-xzk- (4) 10,000 fd-xzk-

134. The property of a material by virtue of which a body returns to its original shape after removal of the load is called: (1) Plasticity (2) Elasticity (3) Ductility (4) Resilience

134. fdlh inkFkZ ds xq.k&/keZ ftlds dkj.k Hkkj dks gVkus ds i”pkr dksbZ Hkh fiaM viuh ewy vkÑfr esa ykSV vkrk gS mls dgrs gSa%

(1) IykfLVdrk (2) çR;kLFkrk (3) rU;rk (4) foÑfr ÅtkZ

135. Fluxes are used in welding in order to protect the molten metal and the surfaces to be joined from: (1) Oxidation (2) Carburising (3) Unequal temperature distribution (4) Distortion and warping

135. osfYMax esa xkydksa dk ç;ksx xfyr /kkrq dks cpkus ds fy, fd;k tkrk gS rFkk lrgksa dks buesa ls fdlls tksM+k tkrk gS%

(1) vkWDlhdj.k

(2) dkcZu O;kiu

(3) vleku rkieku forj.k

(4) O;kroZu rFkk vkoyu

136. In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15 minutes and the mass of steam passed out in same time was 4.8 kg. Dryness fraction is: (1) 40% (2) 25% (3) 50% (4) 80%

136. ok’i dh “kq’d fHkUu xq.kkad fu/kkZj.k ç;ksx esa 15 feuV esa foyfxr ikuh dk æO;eku 1.2 fd-xzk- rFkk mrus gh le; esa ok’i fuLlj.k dk æO;eku 4.8 fd-xzk- Fkk rks “kq’d fHkUu xq.kkad gksxk% (1) 40% (2) 25% (3) 50% (4) 80%

137. Feed water conditioning in thermal power plants is done to: (1) Reduce hardness and for removal of solids (2) Increase efficiency of thermal power plant (3) Increase heat transfer rate (4) Increase steam parameters

137. rki fo|qr IykaV esa ty Hkj.k vuqdwyu fd;k tkrk gS%

(1) dBksjrk de djus ,oa Bksl inkFkks± dks gVkus gsrq

(2) rki fo|qr IykUV dh n{krk c<+kus gsrq

(3) m’ek LFkkukUrj.k nj dks c<+kus gsrq

(4) Hkki çkpyksa dks c<+kus gsrq

138. Which of the following refrigerants has the highest critical point temperature: (1) Freon-11 (2) Freon-12 (3) Freon-22 (4) Ammonia

138. fuEu ç”khrdksa esa ls dkSu mPpre rki Økafrd fcUnq j[krk gS] dks dgrs gSa%

(1) Ýs;kWu –11 (2) Ýs;kWu-12 (3) Ýs;kWu –22 (4) veksfu;k

139. Two beams have same depth but one beam has double the width of the other. The elastic strength of double width beam compared to other beam will be: (1) Eight times (2) Double (3) Three times (4) Four times

139. nks /kjuksa dh leku xgjkbZ gS] ijUrq ,d /kju dh pkSM+kbZ nwljs ds nks xquh gSA nks xquh pkSM+kbZ okys /kju dh çR;kLFk etcwrh nwljs /kju dh

rqyuk esa gksxh%

(1) vkB xquh (2) nks xquh (3) rhu xquh (4) pkj xquh

140. A beam is loaded as cantilever. If the load at the end is increased, the failure will occur: (1) In the middle (2) At the tip below the load (3) At the support (4) Anywhere

140. ,d /kju dks dSUVhyhoj dh rjg Hkkfjr fd;k tkrk gSA ;fn fljs ij Hkkj c<+k;k tkrk gS rks iru dh fLFkfr gksxh%

(1) e/; esa (2) Hkkj ds Bhd uhps Nksj ij (3) vk/kkjksa ij (4) dgha Hkh

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MECH-135 [A–19]

141. A spherical vessel with an inside diameter of 2 m is made of material having an allowable stress in tension of 500 kg/cm2. The thickness of a shell to withstand a pressure of 25 kg/cm2 should be: (1) 5 cm (2) 10 cm (3) 2.5 cm (4) 1.25 cm

141. ,d xksykdkj ik= ftldk vkUrfjd O;kl 2 eh- gS] dks 500 fdxzk- @lseh2 ruko esa vuqes; çfrcy okys inkFkZ ls cuk;k tkrk gSA 25 fdxzk- @ lseh-2 nkc dks lgus ds fy, ik= dh eksVkbZ gksxh%

(1) 5 lseh- (2) 10 lseh- (3) 2.5 lseh- (4) 1.25 lseh-

142. In rivetted joints, butt joints are usually preferred over lap joints. The reason for this is that: (1) Joint efficiency is more in the case of butt joint (2) It is convenient to make butt joint (3) Lap joint usually fails due to severe stresses in the

rivet (4) Butt joint is symmetrical

142. fjosVsM tksM+ esa ySi tksM+ dh ctk; cê tksM+ dks çkFkfedrk nsrs gSaA bldk dkj.k gS%

(1) cê tksM+ esa tksM+ dh n{krk vf/kd gS

(2) cê tksM+ dks cukuk vklku gS

(3) fjosV esa vf/kd çfrcy gksus ds dkj.k lkekU;r% ySi tksM+

vlQy gks tkrs gSa

(4) cê tksM+ leehfr; gksrs gSa

143. Prandtl number is the ratio of: (1) Momentum diffusivity to mass diffusivity (2) Momentum diffusivity to thermal diffusivity (3) Thermal diffusivity to mass diffusivity (4) Thermal conductivity to specific heat

143. çkaMy la[;k fuEu esa ls fdldk vuqikr gS\

(1) laosx folj.k'khyrk ls æO;eku folj.k'khyrk dk

(2) laosx folj.k'khyrk ls rkih; folj.k'khyrk dk

(3) rkih; folj.k'khyrk ls æO;eku folj.k'khyrk dk

(4) rkih; pkydrk ls fo'ks"k Å"ek dk

144. Wavelength corresponding to the maximum energy is inversely proportional to the absolute temperature. This is: (1) Stefan’s law (2) Kirchhoff’s law (3) Wien’s displacement law (4) Planck’s distribution law

144. vf/kdre ÅtkZ ds vuq:i rjax nS/;Z ije rkieku dk O;qRØekuqikrh

gSA og gS%

(1) LVsQkWu fu;e (2) fdjpkSQ fu;e (3) ohu foLFkkiu fu;e (4) Iykad forj.k fu;e

145. Fourier number may be expressed as ratio of: (1) Buoyancy to viscous force (2) Internal thermal resistance of a solid to the boundary

layer thermal resistance (3) Gravitational and surface tension forces (4) Heat conduction rate to the rate of thermal energy

storage in a solid

145. Qksfj;s la[;k dks fuEufyf[kr esa ls fdlds vuqikr ds :i esa

vfHkO;ä fd;k tk ldrk gS\

(1) mRIykodrk ls ';ku cy dk

(2) Bksl ds vkUrfjd rkih; çfrjks/k ls ifjlhek Lrj rkih; çfrjks/k

dk

(3) xq:Roh; ,oa i`"B ruu cy

(4) Å"ek pkyu nj ls Bkslksa esa rkih; ÅtkZ HkaMkj.k nj dk

146. In a two-fluid heat exchanger, the inlet and outlet temperature of the hot fluid are 65°C and 40°C respectively. For the cold fluid, these are 15°C and 42°C. The heat exchanger is a: (1) Parallel flow heat exchanger (2) Counter flow heat exchanger (3) Heat exchange device where both parallel flow and

counter flow operations are possible (4) None of the above

146. fdlh f}rjy Å"ek fofuef;= esa] rIr rjy dk vUrxZe vkSj cfgxZe

rki Øe'k% 65°C vkSj 40°C gSaA 'khr rjy ds fy, Øe'k% 15°C

vkSj 42°C gSaA Å"ek fofuef;= dk çdkj crkb,\

(1) lekUrj çokg Å"ek fofuef;=

(2) çfr çokg Å"ek fofuef;=

(3) Å"ek fofuef;= ;qfä ftlesa lekUrj çokg ,oa çfr çokg

lafØ;k,a laHko gSa

(4) mi;qZä dksbZ ugha

147. A gas at 4 bar and 400 K occupies a volume of 1m3. After its expansion its volume and temperature become 4m3 and 300 K respectively. The final pressure of the gas would be: (1) 0.50 bar (2) 0.60 bar (3) 0.75 bar (4) 1.25 bar

147. dksbZ xSl 4 ckj ¼Bar½ vkSj 400 K ij 1m3 dk vk;ru ?ksjrh gSA

blds çlkj ds i'pkr~ Øe'k% bldk vk;ru vkSj rkieku 4m3 vkSj

300 K gks tkrk gSA xSl dk vfUre nkc fdruk gksxk\

(1) 0.50 ckj (2) 0.60 ckj (3) 0.75 ckj (4) 1.25 ckj

148. The relation between the pressure and volume of a system during expansion process is p = 9 V2. Where p is in N/m2 and V in m3. The maximum work done by the system in expanding from an initial volume of 1 m3 to a final volume of 2 m3 would be: (1) 13 J (2) 17 J (3) 21 J (4) 25 J

148. çlkj çØe ds nkSjku fdlh ra= ds nkc vkSj vk;ru dk laca/k p = 9 V2 gSA tgk¡ N/m2 esa p vkSj m3 esa V gSA 1m3 ds çkjafHkd

vk;ru ls 2m3 ds vfUre vk;ru rd ds çlkj esa ra= }kjk fd;k

x;k vf/kdre dk;Z fdruk gksxk\

(1) 13 J (2) 17 J (3) 21 J (4) 25 J

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MECH-135 [A–20]

149. The thermal efficiency of a reversible engine is 50%. The ambient temperature is 27°C. The temperature of the high temperature source is: (1) 54°C (2) 108°C (3) 258°C (4) 327°C

149. mRØE; batu dh Å"eh; n{krk 50% gSA ifjos'k rkieku 27°C gSA

mPp rkieku lzksr dk rkieku gksxk%

(1) 54°C (2) 108°C (3) 258°C (4) 327°C

150. Choose the correct statement: (1) An adiabatic process is always reversible (2) An isentropic process is never reversible (3) An adiabatic process is always isentropic (4) A frictionless adiabatic process is always isentropic

150. lgh dFku dk p;u dhft,% (1) :)ks"e çØe lnk çfrØE; gksrk gS

(2) le,sUVªkWih çØe dHkh Hkh çfrØE; ugha gksrk gS

(3) :)ks"e çØe lnk le,sUVªkWih gksrk gS

(4) ?k"kZ.kjfgr :)ks"e çØe lnk le,sUVªkWih gksrk gS

151. Which of the following is a water tube boiler? (1) Lanchashire boiler (2) Babcock and Wilcox boiler (3) Locomotive boiler (4) Cochran boiler

151. fuEufyf[kr esa ls dkSu&lk ty ufydk ck;yj gS\ (1) yadk'kk;j ck;yj

(2) cscdkWd ,oa foydkDl ck;yj

(3) yksdkseksfVo ck;yj

(4) dkWdju ck;yj

152. A device used to heat feed water by utilizing the heat in the exhaust flue gases before leaving through the chimney, is known as: (1) Superheater (2) Economizer (3) Reheater (4) None of the above

152. fpeuh esa NksM+us ls iwoZ fu"dkld ¶yw xSlksa esa Å"ek mi;ksx djds

fdlh ;qfä dks çHkj.k ty xje djus ds fy, ç;ksx fd;k tkrk gS]

mls D;k dgrs gSa\

(1) vfrrkid (2) ferksi;ksft= (3) iquLrkid (4) mi;qZä dksbZ ugha

153. The number of working strokes per minute for a four-stroke cycle engine are: (1) r.p.m of the engine (2) One-half of the r.p.m of the engine (3) Twice the r.p.m. of the engine (4) Four times the r.p.m. of the engine

153. prq% LVªksd pØ batu ds fy, çfr feuV dk;Zdkjh LVªksDl la[;k crkb,\

(1) batu ds r.p.m. (2) batu ds r.p.m. dk vk/kk

(3) batu ds r.p.m. dk nqxquk (4) batu ds r.p.m. dk pkj xquk

154. The capillary tube used in a refrigeration plant is used to: (1) Increase the enthalpy of the entering fluid (2) Reduce the pressure of the system from condenser to

evaporator (3) Convert liquid into vapour (4) Separate vapour from the liquid

154. ç'khru la;= esa ç;qä dksf'kdk uyh D;k dk;Z djrh gS\

(1) ços'kh rjy dh ,UFksYih c<+krh gS

(2) la?kfu= ls okf"i= rd ra= dk nkc ?kVkrh gS

(3) æo dks ok"i esa :ikUrfjr djrh gS

(4) æo ls ok"i dks i`Fkd djrh gS

155. A sling psychrometer is used to read: (1) Dry and wet bulb temperatures of air (2) Psychrometric properties of air (3) Specific humidity of air (4) Relative humidity of air

155. mn~ca/ku lkbØksehVj fdl iBu gsrq ds ç;ksx fd;k tkrk gS\ (1) ok;q dk 'kq"d ,oa vkæZ cYc rkieku

(2) ok;q dk lkbØksehVªh xq.k

(3) ok;q dh fof'k"V vkæZrk

(4) ok;q dh vkisf{kd vkæZrk

156. An impulse turbine requires: (1) High head and small quantity of flow (2) Low head and small quantity of flow (3) Low head and high rate of flow (4) Medium head and medium flow rate

156. fdlh vkosx VckZbu ds fy, fuEu esa ls fdldh vko';drk gksrh gS%

(1) mPp nkcksPprk ,oa y?kq ek=k esa çokg

(2) fuEu nkcksPprk ,oa y?kq ek=k esa çokg

(3) fuEu nkcksPprk ,oa mPp çokg nj

(4) e/;e nkcksPprk ,oa e/;e çokg nj

157. A Kaplan turbine is: (1) An inward flow impulse turbine (2) Low head axial flow turbine (3) High head axial flow turbine (4) High head mixed flow turbine

157. dSIyu VckZbu fdls dgrs gSa\ (1) vUreqZ[k çokg vkosx VckZbu

(2) fuEu nkcksPprk v{kh; çokg VckZbu

(3) mPp nkcksPprk v{kh; çokg VckZbu

(4) mPp nkcksPprk feJ çokg VckZbu

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158. A pump delivers water at a rate of 0.025 m3/s against a head of 30 m. If the overall efficiency of the pump is 75 %, the power required by the pump is: (1) 1 kW (2) 4.9 kW (3) 7.8 kW (4) 9.8 kW

158. ,d iEi 30m dh nkcksPprk ij 0.025 m3/s dh nj ij ikuh Qsadrk gSA ;fn iEi dk lexz n{krk 75% gS] rks iEi ds fy,

vkisf{kr ikoj gksxh%

(1) 1 kW (2) 4.9 kW (3) 7.8 kW (4) 9.8 kW

159. Match List I and List II and select the correct answer using the codes given below the lists: List-I List-II(Material properties) (Test to determine material properties) A. Ductility 1. Impact test B. Toughness 2. Fatigue test C. Endurance limit 3. Tension test D. Resistance to penetration 4. Hardness test Codes: (1) A-3, B-2, C-1, D-4 (2) A-4, B-2, C-1, D-3 (3) A-3, B-1, C-2, D-4 (4) A-4, B-1, C-2, D-3

159. lwph I ls lwph II dk feyku dhft, vkSj uhps lwfp;ksa esa fn, x,

dksMksa ds ç;ksx ls lgh mÙkj pqfu,%

lwph&I ¼inkFkZ xq.k/keZ½ lwph&II ¼inkFkZ x.kq/keZ fu/kkZfjr

djus ds fy, ijh{k.k½

A. rU;rk 1. la?kê ijh{k.k B. pheM+iu ¼Toughness½ 2. Jkafr ijh{k.k C. lgu lhek 3. ruu ijh{k.k D. varosZ'ku çfrjks/k 4. dBksjrk ijh{k.k

dksM%

(1) A-3, B-2, C-1, D-4 (2) A-4, B-2, C-1, D-3 (3) A-3, B-1, C-2, D-4 (4) A-4, B-1, C-2, D-3

160. A clock-wise torque of 10 Nm is transmitted through a stepped shaft as shown in Figure. The torsional stiffness of individual sections of lengths MN, NO and OP are 20 Nm/rad, 30 Nm/rad, and 60 Nm/rad, respectively. The angular deflection between the ends M and P of the shaft is:

(1) 0.5 rad (2) 1.0 rad (3) 5.0 rad (4) 10.0 rad

160. 10 Nm dk nf{k.kkorZ cy&vk?kw.kZ lksikuh 'kS¶V ds ek/;e ls lapfjr

fd;k tkrk gS tSls fd fp= esa n'kkZ;k x;k gSA yEckbZ MN] NO rFkk

OP ds çR;sd ek= dh ,saBu n`<+rk Øe'k% 20 Nm/rad, 30 Nm/rad, rFkk 60 Nm/rad gSA 'kS¶V ds M vkSj P fljs ds chp dk dks.kh; fo{ksi crk,a%

(1) 0.5 rad (2) 1.0 rad (3) 5.0 rad (4) 10.0 rad

161. In design of power screws, Acme threads are preferred over the square threads because Acme threads (1) Offer better efficiency than square threads (2) Have less wear and therefore more life (3) Are easier to machine and permit use of a split nut (4) Require lower torque to raise the load

161. ikoj isapksa ds vfHkdYi esa] oxkZdkj pwfM+;ksa dh vis{kk ,Des pwfM+;ksa dks

ojh;rk nh tkrh gS D;ksafd ,Desa pwfM+;k¡%

(1) LDos;j pwfM+;ksa dh vis{kk csgrj n{krk çnku djrh gS

(2) buesa ?k"kZ.k dk de gksrk gS Qy Lo:i vf/kd vk;q

(3) e'khuksa ds fy, vklku rFkk foikV ¼Split½ uVksa ds ç;ksx dh vuqefr nsrs gSa

(4) Hkkj dks mBkus ds fy, de cy vk?kw.kZ dh t:jr gksrh gS

162. In electric arc welding the length of arc is adjusted such that it is equal to: (1) Diameter of the electrode (2) Half the diameter of the electrode (3) Two times the diameter of the electrode (4) Three times the diameter of the electrode

162. fo|qr vkdZ osYMdj.k esa vkdZ dh yEckbZ fdl çdkj leafTtr dh

tk, fd fuEufyf[kr esa ls fdlh ,d ds cjkcj gks tk,%

(1) bysDVªksM ds O;kl

(2) bysDVªksM ds vk/ks O;kl

(3) bysDVªksM ds nqxqus O;kl

(4) bysDVªksM ds frxqus O;kl

163. Cemented carbide tools are not used for shaping because: (1) Cutting speed in shaping are limited (2) Reciprocating movement of tool is linear (3) Tool has impact loading at entry (4) Chip sections are large

163. vkÑrh;u ¼:i.k½ ds fy, lhesUVhÑr dkckZbM vkStkj ç;ksx ugha fd,

tkrs gSa D;ksafd%

(1) vkÑrh;u esa drZu pky lhfer gS

(2) vkStkj dk çR;kxkeh vk?kw.kZ jSf[kd gS

(3) ços'k ij vkStkj dk la?kê Hkkj.k gS

(4) fpi Hkkx o`gÙk gS

164. An optical gauge works on the principle of: (1) Reflection of light rays (2) Polarization of light rays (3) Interferences of light rays (4) Dispersion of light rays

164. çdkf'kd xst+ fdl fl)kUr ij dk;Z djrk gS\

(1) çdk'k fdj.kksa ds ijkorZu

(2) çdk'k fdj.kksa ds /kzqo.k

(3) çdk'k fdj.kksa ds O;frdj.k

(4) çdk'k fdj.kksa ds ifj{ksi.k ¼çdh.kZu½

MECH-135 [A–21]

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MECH-135 [A–22]

165. The order of machinability of grey cast iron, low carbon steel magnesium alloy, and monel metal is: (1) Magnesium alloy > Grey cast iron > Low carbon steel

> Monel metal (2) Magnesium alloy > Monel metal > Low carbon steel >

Grey cast iron (3) Grey cast iron > Magnesium alloy > Low carbon steel

> Monel metal (4) Grey cast iron >Low carbon steel > Magnesium alloy

> Monel metal

165. /kwlj <yok¡ ykSg] fuEu dkcZu LVhy eSXuhf'k;e feJ /kkrq ,oa ekWuy /kkrq dh e'khuuh;rk dk Øe gS%

(1) eSXuhf'k;e ,sykW; ¼feJ /kkrq½ > /kwlj <yok¡ yksgk > fuEu dkcZu LVhy > ekWuy /kkrq

(2) eSXuhf'k;e ,sykW; > ekWuy /kkrq > fuEu dkcZu LVhy > /kwlj <yok¡ yksgk

(3) /kwlj <yok¡ yksgk > eSXuhf'k;e ,sykW; > fuEu dkcZu LVhy > ekWuy /kkrq

(4) /kwlj <yok¡ yksgk > fuEu dkcZu LVhy > eSXuhf'k;e ,sykW; > ekWuy /kkrq

166. Cetane number is determined by comparing the performance of diesel oil with the following hydrocarbon: (1) Cetane (2) Mixture of Cetane and alphamethyl naphthalene (3) Mixture of Aldehyde and Ketone (4) Mixture of Cetane and tetra-ethyl lead

166. Mhty rsy ds fu"iknu dh rqyuk fuEukafdr esa ls fdl gkMMªksdkcZu ds lkFk djds lhVsu la[;k fu/kkZfjr dh tkrh gS%

(1) lhVsu

(2) lhVsu vkSj vYQkfeFkkby us¶Fkkysu ds feJ.k

(3) ,YMsgkbMs rFkk dhVksu dk feJ.k

(4) lhVsu rFkk VsVªk bFkkby yhM dk feJ.k

167. A belt can transmit maximum power when the total tension of the drive is: (1) Equal to the centrifugal tension (2) Twice the centrifugal tension (3) Three times the centrifugal tension (4) Four times the centrifugal tension

167. ,d csYV vf/kdre “kfä lapfjr djrk gS tc MªkbZo dk dqy ruu

gksrk gS%

(1) vidsUæh ruu ds cjkcj

(2) vidsUæh ruu dk nqxquk

(3) vidsUæh ruu dk frxquk

(4) vidsUæh ruu dk pkj xquk

168. Rack and pinion arrangement is used for: (1) Linear motion to rotary motion (2) Rotary motion to rotary motion (3) Linear to linear motion (4) Rotary to linear motion

168. jSd ,oa fifu;u foU;kl fdlds gsrq ç;qä gksrk gS%

(1) jSf[kd xfr ls ?kw.kÊ; xfr

(2) ?kw.kÊ; xfr ls ?kw.kÊ; xfr

(3) jSf[kd xfr ls jSf[kd xfr

(4) ?kw.kÊ; xfr ls jSf[kd xfr

169. The included angel of V- belt is usually: (1) 10° to 20° (2) 20° to 30° (3) 30° to 40° (4) 50° to 60°

169. V&csYV dk lfEefyr dks.k lk/kkj.kr% gksrk gS%

(1) 10° ls 20° (2) 20° ls 30° (3) 30° ls 40° (4) 50° ls 60°

170. Cotter joint is used to transmit: (1) Axial tensile load only (2) Axial compressive load only (3) Combined axial and twisting load only (4) Axial tensile or compressive load

170. dkWVj lfU/k fdls lapfjr djus esa ç;qä gksrk gS%

(1) dsoy v{kh; ruu Hkkj

(2) dsoy v{kh; lEihMu Hkkj

(3) dsoy la;qXe v{kh; ,oa ,saBu Hkkj

(4) v{kh; ruu vFkok lEihMu Hkkj

171. An error of 5% occurred during the measurement of the dia of a cylindrical part. The likely error in the calculated weight of the part is approximately: (1) 10% (2) 5% (3) 1% (4) 7.5 %

171. ,d csyukdkj fgLls dh O;kl dk ekiu djrs le; 5% =qfV ?kfVr

gksrh gSA iqtsZ dh ijdfyr Hkkj esa laHkkfor =qfV yxHkx gksxh%

(1) 10% (2) 5% (3) 1% (4) 7.5 %

172. A Fin Will Be Effective Only When Biot Number Is: (1) Less Than One (2) Equal To One (3) More Than One (4) Infinite

172. ,d ia[k dsoy rHkh çHkkoh gksxk tc C;ksV la[;k gks% (1) ,d ls de (2) ,d ds cjkcj (3) ,d ls vf/kd (4) vfuf'pr

173. Which of the following surface hardening processes needs no quenching?

(1) Induction hardening (2) Flame hardening (3) Nitriding (4) Case carburising

173. fuEukafdr esa ls fdu i`"B dBksjhdj.k çØeksa dks eTt'khru dh dksbZ vko';drk ugha gksrh gS%

(1) çsj.k dBksjhdj.k (2) Tokyk dBksjhdj.k (3) ukbVªkbMhdj.k (4) i`"B dkcZu O;kiu

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MECH-135 [A–23]

174. Ceramic cutting tools are made of: (1) Mixture of oxides of aluminum (2) Silicon oxide (3) Titanium carbide (4) Tungsten carbide

174. fljsfed dfVax vkStkj buesa ls fdlls cuk;s tkrs gSa%

(1) vY;qewfu;e ds vkWDlkbMksa dk feJ.k

(2) flfydksu vkWDlkbM

(3) fVVkfu;e dkckZbM

(4) VaxLVsu dkckZbM

175. In drop forging, forging is done by droping: (1) The work piece at high velocity (2) The hammer at high velocity (3) The die with hammer at high velocity (4) A weight on hammer to hammer to produce the

requisite impact

175. ikr QkstZu esa QkstZu buesa ls fdls fxjk dj fd;k tkrk gS% (1) mPp osx ij dk;Z ds VqdM+s dks

(2) mPp osx ij gFkkSM+s dks

(3) mPp osx ij BIis lfgr gFkkSM+s dks

(4) gFkkSM+s ls gFkkSM+s ij Hkkj okafPNr la?kkr mRié djrk gS

176. No cutting fluid is normally used while machining: (1) Aluminum (2) Alloy steels (3) Cast iron (4) Low carbon steel

176. fuEukafdr esa ls fdldh e'khfuax djrs le; lkekU;r% fdlh drZd rjy dk ç;ksx ugha fd;k tkrk gS%

(1) vY;qfefu;e (2) feJ/kkrq bLikr (3) <yoka yksgk (4) fuEu dkcZu bLikr

177. The x and y components of velocity in a two-dimensional incompressible flow are given by u = 3x + 3y and v = 2x – 3y Which of the following is true. (1) Irrotational flow (2) Rotational flow (3) Potential flow (4) None of these

177. f}&foeh; vlaihM~; çokg esa osx ds x rFkk y ?kVd u = 3x + 3y rFkk v = 2x – 3y ls çkIr gksrs gSa

fuEu esa ls dkSu lgh gS\

(1) v?kw.khZ çokg (2) ?kw.khZ çokg (3) foHko çokg (4) buesa ls dksbZ ugha

178. At one section (denoted by 1-1) of a horizontal water pipeline, the diameter is 10 cm and the static pressure is 68.65 kN/m2. At another section (denoted by 2-2), the diameter is 20 cm and the static pressure is 147.1 kN/m2. The flow rate in the pipe line is 0.1 m3/s. Which of the following statements is true: (1) Flow is from section 1-1 to section 2-2. (2) Flow is from section 2-2 to section 1-1* (3) Cannot be definitely told (4) None of these

178. ,d vuqçLFk ty ikbiykbu ds ,d [kaM ¼1-1 }kjk funsZf”kr½ ij O;kl 10 lsaVhehVj gS vkSj LFkSfrd nkc 68.65 kN/m2 gSA nwljs [kaM

¼2-2 }kjk funsZf”kr½ ij O;kl 20 lsaVhehVj gS vkSj LFkSfrd nkc

147.1 kN/m2 gSA ikbiykbu esa çokg xfr 0.1 m3/s gSA fuEu esa ls dkSu&lk dFku lp gS\

(1) çokg [kaM 1-1 ls [kaM 2-2 dh rjQ gS (2) çokg [kaM 2-2 ls [kaM 1-1 dh rjQ gS (3) fuf”pr :i ls ugha crk;k tk ldrk

(4) buesa ls dksbZ ugha

179. What kind of nozzle is required to get a supersonic stream from low subsonic velocity at inlet? (1) Convergent nozzle (2) Divergent nozzle (3) Convergent Divergent nozzle (4) None of these

179. varxZe ij fuEu v/k%/ofu osx ls ,d ijk/ofud /kkjk çkIr djus ds

fy, fdl çdkj ds uksty dh t:jr gksrh gS\

(1) vfHklkjh uksty (2) çlkjh uksty (3) vfHklkjh çlkjh uksty (4) buesa ls dksbZ ugha

180. A nozzle is a device for increasing velocity of a steadily flowing stream. At the inlet of a certain nozzle, the enthalpy and velocity of fluid are 3000 kJ/Kg and 60 m/s respectively, whereas the enthalpy is 2500 kJ/Kg at the discharge end. The nozzle is horizontal and there is negligible heat loss from it. Find the exit velocity of the nozzle. (1) 900.5 m/s (2) 708.4 m/s (3) 775.0 m/s (4) 1000 m/s

180. ,d uksty fLFkj :i ls çokfgr gksus okyh /kkjk dk osx c<+kus okyk midj.k gSA ,d [kkl uksty ds varxZe ij rjy ,UFksYih vkSj osx

Øe”k% 3000 kJ/Kg rFkk 60 m/s gS tcfd fuLlj.k Nksj ij ,UFksYih 2500 kJ/Kg gSA uksty vuqçLFk gS vkSj mlls Å’ek {kfr ux.; gSA

uksty dk fuxZe osx Kkr djsa%

(1) 900.5 m/s (2) 708.4 m/s (3) 775.0 m/s (4) 1000 m/s

181. The outer wall of a house is exposed to the solar radiation q=1.4 kW/m2 .The wall thickness is 0.3 m and thermal conductivity of the wall material is 50 W/mK. Surface heat transfer coefficient for outer wall and the inner wall are 300 W/m2K and 250 W/m2K respectively. Calculate the temperature of the outer wall when ambient temperature and temperature within the house is 30°C: (1) 30°C (2) 33.5°C (3) 3.5°C (4) 60°C

181. ,d edku dh ckgjh nhokj ij q=1.4 kW/m2 lkSj fofdj.k iM+rk gSA

nhokj dh eksVkbZ 0.3 ehVj gS vkSj nhokj lkexzh dh rkih; pkydrk

50 W/mK gSA ckgjh nhokj dk rFkk Hkhrjh nhokj dk lrgh Å’ek

varj.k xq.kkad Øe”k% 300 W/m2K rFkk W/m2K gSA tc ifjos”kh rkieku vkSj ?kj ds Hkhrj dk rkieku 30°C gS rks ckgjh nhokj ds rkieku dh x.kuk djsa%

(1) 30°C (2) 33.5°C (3) 3.5°C (4) 60°C

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MECH-135 [A–24]

182. An air-standard Diesel cycle has a compressor ratio of 14. The pressure at the beginning of the compression stoke is 1 bar and temperature is 27°C. The maximum temperature of the cycle is 2500°C. The ratio specific heat of the working fluid (γ) is 1.4. Estimate the cut-off ratio: (1) 10.0 (2) 5.0 (3) 7.0 (4) 3.21

182. ,d ok;q ekud Mhty pØ dk laihfM= vuqikr 14 gSA laihMu LVªksd ds çkjaHk esa nkc 1 ckj gS vkSj rkieku 27°C gSaA pØ dk vf/kdre

rkieku 2500°C gSA dk;Zdkjh rjy (γ) dk vkuqikfrd fof”k’V Å’ek

1.4 gSA foPNsnu vuqikr dk vuqeku yxk,a%

(1) 10.0 (2) 5.0 (3) 7.0 (4) 3.21

183. The thickness of insulation up to critical insulation thickness or beyond is decided as per required application. For refrigeration/thermal system and electrical applications the thickness of insulation should be: (1) Greater than the critical thickness and up to critical

thickness, respectively (2) Less than critical thickness and up to critical

thickness, respectively (3) Up to critical thickness for both applications (4) Greater than critical thickness for both applications

183. ØkfUrd fo|qr&jks/ku eksVkbZ rd vFkok mlls vf/kd rd fo|qr&jks/ku

dh eksVkbZ visf{kr vuqç;ksx ds vuqlkj fu/kkZfjr dh tkrh gSA

ç”khru@rkih; ç.kkyh vFkok oS|qr vuqç;ksxksa ds fy, fo|qr&jks/ku dh

eksVkbZ gksuh pkfg,%

(1) Øe”k% ØkfUrd eksVkbZ ls vf/kd rd rFkk ØkfUrd eksVkbZ rd (2) Øe”k% ØkfUrd eksVkbZ ls de rFkk ØkfUrd eksVkbZ rd

(3) nksuksa vuqç;ksxksa ds fy, ØkfUrd eksVkbZ rd

(4) nksuksa vuqç;ksxksa ds fy, ØkfUrd eksVkbZ ls vf/kd

184. A wise engineer will recommend only one of the following for a hydraulic turbine, which operates under a head of H, [(H) 5/4 = 12] and operates at speed 300 RPM, for the use in variable load operations. It generates 196 kW power. (1) Pelton wheel (2) Kaplan turbine (3) Deriaz turbine (4) High speed Francis runner

184. ,d cqf)eku bathfu;j gkbMªkfyd Vjckbu ds fy, tks H, [(H) 5/4 = 12] dh nkcksPprk ds v/khu vkSj 300 RPM dh xfr ls pyrh gS ifjorhZ Hkkj çpkyuksa esa ç;ksx ds fy, fuEu esa ls dsoy ,d dh

vuq”kalk djsxkA ;g 196 kW fo|qr iSnk djrh gS% (1) isYVu Oghy (2) dSIyu Vjckbu (3) Msfj;kt Vjckbu (4) mPp xfr okyk Ýkafll juj

185. If a simple carburetor is designed to supply air-fuel mixture for economic operation of the engine, the air-fuel mixture at sufficiently reduced load would be

(1) Very rich mixture (2) Very thin mixture (3) Remain unchanged (4) Stoichiometric

185. ;fn dksbZ lk/kkj.k dkjC;wjsVj] baftu ds fdQk;rh çpkyu ds fy, ok;q&b±/ku feJ.k dh vkiwfrZ djus ds fy, rS;kj fd;k tkrk gS] rks

i;kZIr :i ls ?kVs gq, Hkkj ij ok;q&b±/ku feJ.k gksxk%

(1) vR;ar le`) feJ.k (2) cgqr iryk feJ.k (3) vifjofrZr jgsxk (4) rkfRod feJ.k

186. For a boat floating on water, the “center of buoyancy” is the point B through which the total buoyancy forces that the fluid exerts on the body effectively pass, and the “center of gravity” G is the point through which the gravity forces acting on the body effectively pass. For the boat to be stable: (1) G should be on the same horizontal line as B (2) G should be on the same vertical line and below B (3) G should be on the same vertical line and above B (4) None of these

186. ikuh eas rSjrh gqbZ ,d ukSdk dk ^mRIykodrk dk dsUæ* fcanq B gS ftlds ek/;e ls “kjhj ij tksj Mkyus okys rjy ds lexz mRIykodrk

cy çHkkoh :i ls xqtj tkrs gSa vkSj ^xq#Ro dk dsUæ* G gS ftlds ek/;e ls “kjhj ij fØ;k”khy xq#Ro cy çHkkoh :i ls xqtj tkrs gSaA

ukSdk dks fLFkj jgus ds fy,%

(1) G dks B ds leku vuqçLFk js[kk ij gksuk pkfg,

(2) G dks mlh Å/okZ/kj js[kk ij rFkk B ls uhps gksuk pkfg, (3) G dks mlh Å/okZ/kj js[kk ij rFkk B ls Åij gksuk pkfg,

(4) buesa ls dksbZ ugha

187. For cutting fine slots of 0.l mm wide with complex shape and good accuracy in a large number of flat 0.25 mm thin sheets of 50 mm x 20 mm dimension, the most convenient method is: (1) Wire EDM (2) EBM (3) PAM (4) LBM

187. 50 mm x 20 mm vkdkj dh 0.25 mm dh piVh ckjhd pknjksa esa cM+h la[;k esa tfVy vkd`fr ds rFkk mRre “kq)rk lfgr 0.1 mm pkSM+s ckjhd [kkaps dkVus ds fy, lokZf/kd lqfo/kkiw.kZ fof/k gksxh%

(1) ok;j bZMh,e (2) bZch,e (3) ih,,e (4) ,ych,e

188. A wedge-shaped tool with 0° rake angle and 2° flank angle gave a tool life of T minute. Assuming the tool wear rate, normal to the wear land, to be constant, the increase in tool life when the flank angle is increased to 8°, is:

(1) 4 (2) 8 (3) 0.25 (4) 0

188. 0° jsd dks.k vkSj 2° ¶ySad dks.k ls ;qDr ,d ost&vkdkj ds vkStkj

us T feuV dk vkStkj&thou çnku fd;kA ;g ekurs gq, fd fu?k’kZ.k

Hkwfedk ds fy, lkekU; vkStkj fu?k’kZ.k nj ,dleku jgsxh] ¶ySad

dks.k c<+kdj 8° fd, tkus ij vkStkj&thou esa o`f) gS%

(1) 4 (2) 8 (3) 0.25 (4) 0

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MECH-135 [A–25]

189. Two grinding wheels of the same specifications behave differently when they are of different diameters because: (1) As diameter increases, wheel appears to be softer

since average force per grit increases (2) As diameter decreases, wheel appears to be softer

since average force per grit increases (3) As diameter increases, material removal rate increases (4) As diameter decreases, concentration of active grains

decreases

189. ,dleku fof”k’Vrkvksa okys nks “kk.k ifg;s vyx&vyx O;kl gksus ij

vyx&vyx rjg dk O;ogkj djrs gSa D;ksafd%

(1) tSls&tSls O;kl c<+rk gS] ifg;k e`nq çrhr gksrk gS D;ksafd çfrfxzV

vkSlr cy c<+ tkrk gS

(2) tSls&tSls O;kl ?kVrk gS] ifg;k e`nq çrhr gksrk gS D;ksafd çfrfxzV

vkSlr cy c<+ tkrk gS

(3) tSls&tSls O;kl c<+rk gS] lkexzh gVkus dh nj c<+ tkrh gS

(4) tSls&tSls O;kl ?kVrk gS] lfØ; nkuksa dk ladsUæ.k ?kV tkrk gS

190. Maximum wear assumption in the design of clutches is suitable for: (1) When disks are flexible and new (2) When disks are flexible under the action of springs (3) When disks are rigid and new (4) When disks are rigid and old

190. Dypksa ds fMtkbu esa vf/kdre fu?k’kZ.k dYiuk fuEu ds fy, mi;qDr

gS%

(1) tc fMLdsa ueu”khy vkSj ubZ gksa

(2) tc fMLdsa fLi±xksa dh fØ;k ds v/khu ueu”khy gksa

(3) tc fMLdsa dBksj vkSj ubZ gksa

(4) tc fMLdsa dBksj vkSj iqjkuh gksa

191. In a simple truss, if ‘n’ is the total number of joints, the total number of members is equal to: (1) 2n + 3 (2) 2n – 3 (3) n + 3 (4) n – 3

191. ,d lk/kkj.k dSaph esa ;fn tksM+ksa dh dqy la[;k ^n* gS rks lnL;ksa dh dqy la[;k buesa ls fdlds cjkcj gksxhA

(1) 2n + 3 (2) 2n – 3 (3) n + 3 (4) n – 3

192. The material of the bed of lathe machine is: (1) Cast steel (2) Cast iron (3) Mild steel (4) Tool steel

192. [kjkn e'khu ds csM dk lkeku gS% (1) <yoka bLikr (2) <yoka yksgk (3) e`nq bLikr (4) Vwy bLikr

193. In oxy-acetylene welding: (1) Pressure is applied (2) Filler metal is applied (3) Both pressure and filler metal are applied (4) Neither pressure, nor filler metal is applied

193. vkWDlh&,lsfVyhu osYMu esa%

(1) çs'kj dk ç;ksx fd;k tkrk gS

(2) fQyj /kkrq dk ç;ksx fd;k tkrk gS

(3) çs'kj vkSj fQyj /kkrq nksuksa dk ç;ksx fd;k tkrk gS

(4) u çs'kj vkSj u fQyj /kkrq dk ç;ksx fd;k tkrk gS

194. Metacentric height is the distance between: (1) Water surface and center of pressure (2) Metacentre and center of gravity (3) Metacentre and center of buoyancy (4) Metacentre and water surface

194. vkIyodsfUær Å¡pkbZ buesa ls fdlds chp dh nwjh gS%

(1) ty lrg vkSj nkc dsUæ

(2) vkIyo dsUæ vkSj xq:Ro ØsUæ

(3) vkIyo dsUæ vkSj mRIykodrk ØsUæ

(4) vkIyo dsUæ vkSj ty lrg

195. The metal powder used in Thermit welding of steel is: (1) Al (2) Cu (3) Pb (4) W

195. bLikr ds FkfeZV osYMu esa ç;ksx fd;k tkus okyk /kkrq ikmMj gS%

(1) Al (2) Cu (3) Pb (4) W

196. Chaplets are placed between mould and core surfaces in order to:

(1) Reduce directional solidification (2) Help local alloying of molten metal (3) Help easy removal of core from casting (4) Prevent core movement due to buoyancy

196. lkaps vkSj ØksM i`"Bksa ds chp ekyk,a j[kh tkrh gSa tks%

(1) fn'kkRed dBksjhdj.k de djrh gSa

(2) xfyr /kkrq dh LFkkfud feJ/kkRou esa lgk;rk djrh gSa

(3) <ykbZ ls ØksM dks vklkuh ls gVkus esa lgk;d gksrh gS

(4) mRIykodrk ds dkj.k gqbZ xfrfof/k dks jksdrk gS

197. Reamer is designed to have even number of flutes to:

(1) Balance the cutting forces (2) Conform to shop floor standard (3) Enable measurement of the reamer diameter (4) Help in regrinding of reamer

197. ifjfNæd dks vfHkdfYir fd;k tkrk gS ukfy;ksa dh le la[;k j[kus

ds fy, ftlls%

(1) drZd cyksa esa lqUrqyu gks

(2) 'kki ry ekud ds vuq:i gks

(3) ifjfNæd O;kl ds ekiu esa leFkZ gks

(4) ifjfNæd ds iqu%is"k.k esa lgk;d gks

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MECH-135 [A–26]

198. The cutting portion of a drill is to be welded to its shank. The process best suited for this is: (1) Ultrasonic welding (2) Electron beam welding (3) Friction welding (4) Laser welding

198. fdlh fMªy ds dfVax Hkkx dks blds 'kSad ds lkFk osYM djuk gSA blds fy, lcls vf/kd mi;qä çfØ;k gS%

(1) ijkJO; osYMu

(2) bysDVªkWu che osYMu

(3) ?k"kZ.k osYMu

(4) yslj osYMu

199. A 100 mm thick steel bar is to be horizontally cast with two correctly spaced top risers of adequate feeding capacity. Assuming end effect without chill, what should be the theoretical length of the bar? (1) 96 mm (2) 132 mm (3) 192 mm (4) 156 mm

199. i;kZIr Hkj.k {kerk ds nks lgh vUrjkyh 'kh"kZ mn~okfg;ksa ds lkFk 100 mm eksVh bLikr dh ,d NM+ dks {kSfrt :i ls <kyuk gSA æqr'khru

ds fcuk vUr çHkko dks ekurs gq, NM+ dh lS)kfUrd yEckbZ D;k gksuh

pkfg,%

(1) 96 mm (2) 132 mm (3) 192 mm (4) 156 mm

200. Proper gating design in metal casting: P Influences the freezing range of the melt Q Compensates the loss of fluidity of the melt R Facilitates top feeding of the melt S Avoids mis–runs (1) P, R (2) Q, S (3) R, S (4) P, S

200. /kkrq dh <ykbZ esa mfpr xsfVax vfHkdYi%

P xyu dh fgeu Js.kh dks çHkkfor djrk gS

Q xyu dh rjyrk {kfr dh {kfriwfrZ djrk gS

R xyu ds 'kh"kZ Hkj.k dks lqlk/; cukrk gS

S pwd&çokgksa dh mis{kk djrk gS

(1) P, R (2) Q, S (3) R, S (4) P, S

201. Which of the following surface hardening processes needs no quenching? (1) Induction hardening (2) Flame hardening (3) Nitriding (4) Case carburising

201. fuEukafdr esa ls fdu i`"B dBksjhdj.k çØeksa dks eTt'khru dh dksbZ vko';drk ugha gksrh gS%

(1) çsj.k dBksjhdj.k

(2) Tokyk dBksjhdj.k

(3) ukbVªkbMhdj.k

(4) i`"B dkcZu O;kiu

202. The blade of a power hacksaw is made of: (1) Boron steel (2) High speed steel (3) Stainless steel (4) Malleable cast iron

202. ikoj gsDlk dk CysM buesa ls fdlls cuk;k tkrk gS% (1) cksjksu bLikr

(2) mPp xfr bLikr

(3) LVsuysl bLikr

(4) vk?kkr o/;Z <yoka yksgk

203. In sheet metal working, shear is provided on punches and dies so that: (1) Press load is reduced (2) Good cut edge is obtained (3) Warping of sheet is minimised (4) Cut blanks are straight

203. 'khV esVy dk;Z esa iUpst ¼fNædks½ vkSj Mkbt ¼BIiksa½ ij vi:i.k

miyC/k djk;k tkrk gS ftlls fd%

(1) çsl Hkkj de gks

(2) vPNk dV fdukjk çkIr gks

(3) 'khV ds lacyu dks U;wure fd;k tk lds

(4) dV Cysad lh/ks gks

204. Sensitization of stainless steel leads to: (1) Crevice corrosion (2) Pitting corrosion (3) Inter–granular corrosion (4) Uniform attack

204. LVsuysl LVhy dh lqxzkfgrk dkj.k curh gS% (1) njkj la{kkj.k dk

(2) xrZu la{kkj.k dk

(3) vUrjdf.kd la{kkj.k dk

(4) ,d leku çgkj dk

205. In titanium extraction by Kroll’s process, the reducing agent and product are respectively: (1) Mg and ductile titanium (2) Na and ductile titanium (3) Na and sponge titanium (4) Mg and sponge titanium

205. Øksy çØe }kjk VkbVsfu;e d"kZ.k esa ?kVrs gq, ,tsUV vkSj mRikn gSa

Øe'k%

(1) Mg vkSj rU; VkbVsfu;e

(2) Na vkSj rU; VkbVsfu;e

(3) Na vkSj Liat VkbVsfu;e

(4) Mg vkSj Liat VkbVsfu;e

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MECH-135 [A–27]

206. Desulpherization of pig–iron is favored by: (1) High temperature and high slag basicity (2) High temperature and low slag basicity (3) Low temperature and low slag basicity (4) Low temperature and high slag basicity

206. dPps yksgs dh fuj&xU/kdhdj.k dk i{k buesa ls fdlds }kjk fy;k tkrk gS%

(1) mPp rkieku vkSj /kkrqey {kkjdrk

(2) mPp rkieku vkSj fuEu /kkrqey {kkjdrk

(3) fuEu rkieku vkSj fuEu /kkrqey {kkjdrk

(4) fuEu rkieku vkSj mPp /kkrqey {kkjdrk

207. In the Hall–Heroult process of electrolytic reduction of alumina in cryolite bath, the concentration of alumina should be high so as to maintain: (1) Conductivity of the bath (2) The decomposition voltage (3) Density higher than aluminium (4) Good cathode contact

207. Dz;ksykbV ckFk esa ,syqfeuk ds fo|qr vi?kVuh ?kVko ds gky & gsjksYV

çØe esa ,syqfeuk dk ladsUæ.k mPp gksuk pkfg, ftlls fd buesa ls

fdls cuk, j[kk tk lds%

(1) ckFk dh pkydrk

(2) vi?kVu oksYVrk

(3) vY;wfefu;e ls mPp ?kuRo

(4) vPNk dSFkksM lEidZ

208. Choose the wrong statement: (1) Open type gas turbine can be designed for operation

without cooling cylinder (2) Open type gas turbine requires a charging

compressor to provide the necessary air for combustion

(3) Major disadvantage for semi-closed type gas turbine is the corrosion and fouling problems due to recirculation of the products of combustion

(4) High absolute pressure and density of working fluid in closed type gas turbine reduces the size of the plant.

208. xyr dFku dks pqusa% (1) [kqys çdkj ds xSl VckZbu dks 'khry flysUMj ds fcuk çpkyu ds

fy, vfHkdfYir fd;k tk ldrk gS

(2) [kqys çdkj ds xSl VckZbu dks ngu gsrq vko';d ok;q miyC/k

djkus ds fy, ,d pkft±x lEihfM= dh vko';drk gksrh gS

(3) ngu mRiknksa dks iqupZØ.k ds dkj.k la{kkj.k vkSj nw"k.k leL;k,a

vk/ks cUn çdkj ds xSl VckZbu ds fy, çeq[k uqdlku gS

(4) cUn çdkj ds xSl VckZbu esa mPp lEiw.kZ nkc vkSj dk;Z'khy

rjy dk ?kuRo la;a= ds vkdkj dks de djrk gS

209. Which is the false statement about a flywheel? (1) Flywheel smoothens the cyclic fluctuation of speed

when delivering constant output power (2) It has no influence on the mean speed of the prime

mover (3) It takes care of output fluctuation and controls input

accordingly (4) It has no influence over the varying load demand on

prime mover

209. ,d xfrikyd pØ ds ckjs esa dkSu&lk dFku xyr gS% (1) xfrikyd pØ xfr dh pØh; ?kV c<+ dks e`"k.k djrk gS tc

fLFkj fuxZe 'kfä çnku djrk gSA

(2) eq[; ewoj dh ek/; xfr ij bldk dksbZ çHkko ugha gksrk gS

(3) ;g fuxZe mrkj p<+ko dh ns[kHkky djrk gS vkSj rnuqlkj fuos'k

dks fu;fU=r djrk gS

(4) eq[; ewoj ij ifjorÊ Hkkj dh ek¡x ij bldk dksbZ çHkko ugha

iM+rk gS

210. Killed steels: (1) Have minimum impurity level (2) Have almost zero percentage of phosphorus and

sulphur (3) Are free from silicon and phosphorous (4) Are free from oxygen

210. gr bLikr% (1) esa U;wure v'kq)rk Lrj gksrk gS

(2) esa QkWLQksjl vkSj lYQj dk yxHkx 'kwU; çfr'kr gksrk gS

(3) flfydkWu vkSj QkWLQksjl ls eqä gksrk gS

(4) vkWDlhtu ls eqä gksrk gS

211. The actual vacuum in a condenser is equal to: (1) Barometric pressure + actual pressure (2) Barometric pressure – actual pressure (3) Gauge pressure + atmospheric pressure (4) Gauge pressure – atmospheric pressure

211. ,d la/kkfj= esa okLrfod fuokZr buesa ls fdlds cjkcj gksrk gS% (1) cSjksehVjh nkc + okLrfod nkc (2) cSjksehVjh nkc – okLrfod nkc (3) xst nkc + ok;qeaMyh; nkc (4) xst nkc – ok;qeaMyh; nkc

212. A steel wire of 1.5 m long and 6 mm diameter is subjected to a 3.4 kN tensile load. If E = 200 GPa, the elongation of the wire is: (1) 0.902 mm (2) 0.802 mm (3) 0.702 mm (4) 0.602 mm

212. 1.5 ehVj yEck vkSj 6 fe-eh- O;kl okyk ,d LVhy ok;j 3.4 kN

ruu Hkkj ds v/khu gSA ;fn E = 200 GPa rks rkj dk nh?kÊdj.k gksxk%

(1) 0.902 mm (2) 0.802 mm (3) 0.702 mm (4) 0.602 mm

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MECH-135 [A–28]

213. A gas is compressed in a cylinder by a movable piston to a volume one-half its original volume. During the process, 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be: (1) 300 Nm (2) 300,000 Nm (3) 3000 Nm (4) 30,000 Nm

213. py fiLVu ds }kjk flfyUMj esa blds ewy vk;ru ds vk/ks Hkkx rd

xSl laihfMr dh tkrh gSA bl çfØ;k ds nkSjku xSl us 300 KJ Å’ek

NksM+h vkSj vkarfjd ÅtkZ mruh gh jghaA rks crkvks xSl ij fd;k x;k

dk;Z fdruk ¼Nm½ gksxk%

(1) 300 Nm (2) 3,00,000 Nm (3) 3000 Nm (4) 30,000 Nm

214. For same compression ratio and for same heat added: (1) Otto cycle is more efficient than Diesel cycle (2) Diesel cycle is more efficient than Otto cycle (3) Efficiency depends on other factors (4) Both Otto and Diesel are equally efficient

214. leku laihMu vuqikr vkSj leku ek=k esa Å’ek lfEefyr djus ls%

(1) Mhty pØ dh vis{kk vksVks pØ vf/kd n{k gS

(2) vksVks pØ dh vis{kk Mhty pØ vf/kd n{k gS

(3) n{krk vU; dkj.kksa ij fuHkZj djrh gS%

(4) vksVks vkSj Mhty pØ nksuksa leku :i ls n{k gSa

215. The tendency of a diesel engine to knock increases, if: (1) Engine speed is increased (2) Engine H.P. is increased (3) Octane number of fuel is increased (4) Compression ratio is increased

215. Mhty batu dh vk?kkr ¼ukWd½ djus dh ço`fÙk c<+ tkrh gS ;fn%

(1) batu dh pky c<+kbZ tkrh gS

(2) batu HP c<+k;k tkrk gS (3) batu dh vkDVsu la[;k c<+kbZ tkrh gS

(4) lEihMu vuqikr c<+k;k tkrk gS

216. A motor car takes a bend of certain radius in right hand direction when moving at some speed. If engine rotates in a clockwise direction when viewed from front, then due to centrifugal force: (1) Reaction on outside wheels is increased and on inside

wheels decreased (2) Reaction on inside wheels is increased and on outside

wheels decreased (3) Reaction on rear wheels is increased and on front

wheels decreased (4) Reaction on rear wheels is decreased and on front

wheels increased

216. eksVj dkj fdlh pky ij xfreku gksus ij nk,a gkFk dh fn”kk dh vksj

fuf”pr jsfMvl ij eqM+rh gSA vkxs ls ns[kus ls ;fn batu nf{k.kkoÙkZ

fn”kk esa ?kwerk gS rks vidsUæh cy ls D;k gksrk gS%

(1) ckgjh ifg;ksa esa çfrfØ;k c<+rh gS vkSj Hkhrjh ifg;ksa esa ?kVrh gS

(2) Hkhrjh ifg;ksa esa çfrfØ;k c<+rh gS vkSj ckgjh ifg;ksa esa ?kVrh gS

(3) fiNys ifg;ksa esa çfrfØ;k c<+rh gS vkSj vxys ifg;ksa esa ?kVrh gS

(4) fiNys ifg;ksa esa ?kVrh gS vkSj vxys ifg;ksa esa c<+rh gS

217. The fatigue life of a part can be improved by: (1) Electroplating (2) Polishing (3) Shot peening (4) Heat treating

217. fdlh iqjts dh Jkafr vk;q fdlds }kjk lq/kkjh tk ldrh gS%

(1) fo|qr ysiu (2) ikWfy”k (3) xqfydk ç{ksi.k (4) Å’eksipkj

218. The included angle in Acme threads is: (1) 60° (2) 55° (3) 47 ½° (4) 29°

218. dkSu&lk dks.k ,Des pwM+h vUrfoZ’V gksxk%

(1) 60° (2) 55° (3) 47 ½° (4) 29°

219. Factor of safety is the ratio of: (1) Yield stress / working stress (2) Tensile stress / working stress (3) Bearing stress / working stress (4) Bearing stress / yield stress

219. lqj{kk dkjd fuEufyf[kr esa ls fdldk vuqikr gS%

(1) ijkHko çfrcy@dk;Z çfrcy

(2) ruu çfrcy@dk;Z çfrcy

(3) cs;fjax çfrcy@dk;Z çfrcy

(4) cs;fjax çfrcy@ ijkHko çfrcy

220. Two helical gears of the same hand and a 45 degree helix angle are in mesh. The shaft of the two gears would be at following angle to each: (1) 45° (2) 90° (3) 22½° (4) Could be at any angle

220. tkyh esa ,d gh gkFk ls nks dqaMfyuh fx;j vkSj 45 fMxzh dk ,d gsfyDl dks.k gS] nks fx;jksa ds “kS¶V fuEufyf[kr esa ls çR;sd fdl

dks.k esa gksaxs

(1) 45° (2) 90° (3) 22½° (4) fdlh Hkh dks.k esa gks ldrs gSa

221. Which of the following has least percentage of carbon: (1) Malleable iron (2) Pig iron (3) Stainless steel (4) Wrought iron

221. fuEufyf[kr esa fdlesa U;wure çfr”kr dkcZu gS% (1) vk?kkr c/kZuh; yksg

(2) dPpk yksgk

(3) LVsuysl LVhy

(4) fiVok¡ yksgk

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222. Chromium in steel: (1) Improves wear resistance, cutting ability and

toughness (2) Refines grain size and produces less tendency to

carburisation, improves corrosion and heat resistant properties

(3) Improves cutting ability and reduces hardenability (4) Gives ductility, toughness, tensile strength and

anticorrosion properties

222. LVhy esa Øksfe;e D;k djrk gS% (1) lrg {k; çfrjks/k] drZu lkeF;Z ,oa peZyrk lq/kkjrk gS

(2) d.k&lkbt ifj’Ñr djrk gS] rFkk de dkcqZjhdj.k mRiUu djrk

gS] la{kkj.k rFkk Å’ek çfrjks/k xq.k/keZ lq/kkjrk gS%

(3) drZu lkeF;Z lq/kkjrk gS rFkk dBksj.kh;rk de djrk gS

(4) rU;rk] peZyrk] ruu lkeF;Z rFkk çfr la{kkj.k xq.k/keZ çnku

djrk gS

223. Vibration of bearing can be measured by: (1) Wheel stone bridge (2) Potentiometer (3) Accelerometer (4) Load cell

223. fo;fjax dk dEiu buds }kjk ekik tk ldrk gS% (1) Oghy LVksu fczt (2) iksVsfUl;ksehVj (3) ,DlsyjksehVj (4) yksM lsy

224. Orsat apparatus is used to determine: (1) Combustibles in flue gases (2) Percentage of CO2, O2 and CO by volume in the gases (3) Percentage of CO2, O2 and CO by weight in the gases (4) O2 in flue gases

224. vklsZV midj.k dk iz;ksx irk yxkus ds fy, fd;k tkrk gS%

(1) ¶yw xSlksa esa ngu”khyrk

(2) xSlksa esa CO2,O2 rFkk CO dk vk;ru izfr”kr

(3) xSlksa esa CO2,O2 rFkk CO dk Hkkj izfr”kr (4) ¶yw xSl esa dh O2 ek=k

225. Rotary compressor is best suited for: (1) Large quantity of air at high pressure (2) Small quantity of air at high pressure (3) Small quantity of air at low pressure (4) Large quantity of air at low pressure

225. ?kwf.kZd laihMd fuEukafdr esa ls fdlds fy, lcls vf/kd mi;qDr gS%

(1) mPp nkc ij ok;q dh vf/kd ek=k

(2) mPp nkc ij ok;q dh de ek=k

(3) fuEu nkc ij ok;q dh de ek=k

(4) fuEu nkc ij ok;q dh vf/kd ek=k

226. The symbol on a PERT/CPM chart represents: (1) An ordinary event (2) A significant event representing some mile-stone (3) An event to be transferred to other network chart (4) Dummy event

226. PERT/CPM pkVZ ij dk fpUg bafxr djrk gS%

(1) ,d lk/kkj.k ?kVuk

(2) dqN ehy&iRFkjksa dk izfrfuf/kRo djrh gqbZ ,d egRoiw.kZ ?kVuk

(3) ?kVuk ftls fdlh vU; latky ¼usVodZ½ pkVZ ij LFkkukUrfjr

fd;k tkuk gks

(4) MEeh ?kVuk

227. Newton’s law of viscosity relates: (1) Pressure, velocity and viscosity (2) Shear stress and rate of angular deformation in a fluid (3) Shear stress, temperature, viscosity and velocity (4) Pressure, viscosity and temperature

227. U;wVu dk ';kurk fu;e fdlls lEcfU/kr gS\ (1) nkc] osx ,oa ';kurk

(2) vi:i.k çfrcy ,oa rjy esa dks.kh; foÑfr dh nj

(3) vi:i.k çfrcy] rki] ';kurk ,oa osx

(4) nkc] ';kurk ,oa rki

228. B.S.W. thread has .................. angle: (1) 45° (2) 55° (3) 60° (4) 29°

228. B.S.W. pwM+h dk dks.k gksrk gS%

(1) 45° (2) 55° (3) 60° (4) 29°

229. The soldering material is alloy of: (1) Lead + tin (2) Zinc + tin (3) Zinc + lead (4) Copper + zinc

229. “kksYMju inkFkZ feJ/kkrq gS% (1) yhM$fVu dk (2) ftad$fVu dk (3) ftad$yhM dk (4) dkWij$ftad dk

230. Feed in lathe is expressed in: (1) mm per revolution (2) mm per degree (3) mm (4) RPM

230. ysFk esa Hkj.k çnf”kZr fd;k tkrk gS% (1) mm çfr pØ.k (2) mm çfr va”k (3) mm (4) RPM

231. The number of working strokes per minute for a four-stroke cycle engine are: (1) r.p.m of the engine (2) One-half of the r.p.m of the engine (3) Twice the r.p.m. of the engine (4) Four times the r.p.m. of the engine

231. prq% LVªksd pØ batu ds fy, çfr feuV dk;Zdkjh LVªksDl la[;k crkb,\

(1) batu ds r.p.m. (2) batu ds r.p.m. dk vk/kk

(3) batu ds r.p.m. dk nqxquk (4) batu ds r.p.m. dk pkj xquk

MECH-135 [A–29]

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MECH-135 [A–30]

232. The intensity of magnetization M of a ferromagnetic solid: (1) Is independent of temperature (2) Increases with increasing temperature (3) Decreases with increasing temperature (4) Depends primarily on the method of heating

232. ykSg pqEcdh; Bksl ds pqEcdu M dh rhozrk%

(1) rkieku ls Lora= gS

(2) c<+rs gq, rkieku ds lkFk c<+rh gS

(3) c<+rs gq, rkieku ds lkFk ?kVrh gS

(4) eq[; :i ls Å"eu dh i|fr ij fuHkZj djrh gS

233. The blank diameter used in thread rolling will be: (1) Equal to minor diameter of the thread (2) Equal to pitch diameter of the thread (3) A little larger than the minor diameter of the thread (4) A little larger than the pitch diameter of the thread

233. pwM+h csYyu esa ç;qä fjäd ¼CySad½ O;kl gksxk%

(1) pwM+h ds y?kq O;kl ds cjkcj

(2) pwM+h ds fip O;kl ds cjkcj

(3) pwM+h ds y?kq O;kl ls FkksM+k lk cM+k

(4) pwM+h ds fip O;kl ls FkksM+k lk cM+k

234. The pressure angle between two involute gears in mesh is: (1) Dependent on the center distance between gear and

pinion (2) Dependent on the location of the point of contact on

the line of action (3) A fixed parameter which depends on the involute

profile only (4) A function of the center distance and the location of

the point of contact

234. tkyh esa nks vUroZfyr fx;jksa ds chp nkc dks.k gS%

(1) fx;j vkSj fifu;u ds chp dsUæ nwjh ij vk/kkfjr gS

(2) fØ;k dh ykbu ij lEidZ fcUnq dh fLFkfr ij vk/kkfjr gS

(3) ,d fu;r çkpy tks dsoy vUroZfyr çksQkbyu ij vk/kkfjr gS

(4) dsUæ nwjh vkSj lEidZ fcUnq dh fLFkfr dk Qyu gS

235. A ‘block’ of information in NC machine means: (1) One row on tape (2) A word comprising several rows on tape (3) One complete instruction (4) One complete program for a job

235. NC e'khu esa lwpuk ds ^CykWd* D;k vFkZ gS\

(1) Vsi ij ,d iafä

(2) Vsi ij vusd iafä;ksa dks lekfo"V djus okyk ,d 'kCn

(3) ,d iw.kZ funsZ'k

(4) ,d dk;Z ds ,d iw.kZ dk;ZØe

236. Feed drives in CNC milling machines are provided by: (1) Synchronous motors (2) Induction motors (3) Stepper motors (4) Servo motors

236. CNC fefyax e'khuksa esa çHkj.k pkyu fdl eksVj }kjk çnku fd;k

tkrk gS\

(1) rqY;dkfyd eksVj

(2) çsj.k eksVj

(3) LVsij eksVj

(4) loksZ eksVj

237. A Bell Coleman cycle is a reversed: (1) Brayton cycle (2) Atkinson cycle (3) Ericsson cycle (4) Carnot cycle

237. csy dksyeu pØ gS ,d O;qRØeh;% (1) czsVu pØ (2) ,sVfdUlu pØ (3) ,fjDlu pØ (4) dkusZV pØ

238. A moving mandrel is used in: (1) Wire drawing (2) Metal cutting (3) Tube drawing (4) Forging

238. ,d py eSUMªy dk ç;ksx fuEu esa fd;k tkrk gS% (1) rkj cukuk (2) /kkrq dkVuk (3) ufydk cukuk (4) QkstZu

239. In gas welding of mild steel using an oxy-acetylene flame, the total amount of acetylene used was 10 litre. The oxygen consumption from the cylinder was: (1) 5 litre (2) 10 litre (3) 15 litre (4) 20 litre

239. vkDlh&,lhfVyhu Tokyk dk ç;ksx djrs gq, e`nq bLikr dh xSl

cSfYMax esa] ç;qä dh xbZ ,slhfVyhu dh dqy ek=k 10 yhVj FkhA flys.Mj ls vkDlhtu dh [kir FkhA

(1) 5 yhVj (2) 10 yhVj (3) 15 yhVj (4) 20 yhVj

240. Which of the following is an inversion of double slider crank chain? (1) Pendulum Pump (2) Elliptical Trammels (3) Oscillating Cylinder Engine (4) Ackermann Steering

240. fuEu esa dkSu Mcy LykbMj ØSad psu dk ,d çrhiu gS\ (1) isaMqye iEi

(2) nh?kZo`Ùkh; VªSey

(3) nksyd flys.Mj batu

(4) ,djeSu LVh;fjax

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Q.No.130

DescriptionAMBIGUOUS

17/11/2013FOOD CORPORATION OF INDIA

PAPER-II (135_Mechanical Engineering)SERIES—A

Engistan.com

Engistan.co

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