1151. One time measurement unit (TMU) in method time measurement system equals______________?
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A. 0.006 minute

B. 0.0006 minute

C. 0.001 minute

D. 0.06 minute

E. 0.0001 minute

1152. The size of inlet valve of.an engine in comparison to exhaust valve is_________________?
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A. more

B. more/less depending on capacity of engine

C. same

D. less

E. varies from design to design

1153. The pitch of threads on a Jock nut in comparison to pitch of nut is_________________?
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A. very fine

B. coarser

C. very coarse

D. same

E. finer

1154. The calorific value of gaseous fuels is expressed in terms of__________________?
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A. kcal/kg

B. kcal

C. all of the above

D. kcal/m2

E. kcal/m
1155. If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be_________________?
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A. 20Vdto30Vd

B. 30V5?to40Vd

C. lOVZ

D. 15Vdto20VZ

E. 10VZtol5Vd

1156. If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making a fluid tight joint as for steam engine cover joint is calculated by the relation_______________?
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A. 124 d

B. 168 d

C. 151 d

D. 102 d

E. 138 d

1157. Polymerisation is a chemical process in which molecules of a compound become________________?
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A. gaseous

B. larger

C. slowed down

D. liquid

E. smaller

1158. Which of the following layouts is suited to job production__________________?
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A. product layout

B. process layout

C. fixed position layout

D. plant layout

E. functional layout

1159. Spring index is___________________?
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A. its capability of storing energy

B. ratio of coil diameter to wire diameter

C. nothing

D. indication of quality of spring

E. load required to produce unit deflection

1160. In a typical medium speed 4-stroke cycle diesel engine the inlet valve_____________________?
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A. remains open for 200.

B. opens at top dead center and closes at bottom dead center

C. opens at 10 after top dead center and closes 20 before the bottom dead center

D. may open or close anywhere

E. opens at 20 before top dead center and closes at 35 after the bottom dead center
1161. Standard time as compared to normal time is_______________?
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A. equal

B. there is no such correlation

C. smaller

D. greater

E. none of the above

1162. The term value in value engineering refers to_______________?
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A. utility of the product

B. selling price of the product

C. manufactured cost of the product

D. depreciation value

E. total cost of the product

1163. If a spring is cut down into two springs, the stiffness of cut springs will be _________________?
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A. unpredictable

B. half

C. none of the above

D. double

E. same

1164. Material handling in automobile industry is done by_________________?
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A. trolley

B. overhead crane

C. belt conveyor

D. none of the above

E. all of the above

1165. The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed____________________?
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A. 240C

B. 120C

C. 320C

D. 180C

E. 80C

1166. Antifriction bearings are__________________?
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A. hydrodynamic bearings

B. none of the above

C. thin lubricated bearings

D. sleeve bearings

E. ball and roller bearings

1167. An alien bolt is___________________?
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A. provided with countersunk head

B. self locking bolt

C. provided with hexagonal depression in head

D. same as stud

E. used in high speed components

1168. The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called__________________?
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A. cycle efficiency

B. net efficiency

C. relative efficiency

D. efficiency ratio

E. overall efficiency

1169. The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80 for_________________?
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A. safety

B. ease of manufacture

C. fullering and caulking

D. reducing stress concentration

E. all of the above

1170. Excess quantities of sulphur in diesel fuel are Objectionable because it may cause the following______________?
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A. ch of the following is false statement?

1171. Which of the following is a permanent fastening ?
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A. keys

B. bolts

C. screws

D. rivets

E. cotters

1172. Allen bolts are___________________?
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A. designed for shock load

B. uniform strength bolts

C. used in aircraft application

D. provided with hexagonal depression in head

E. self locking bolts

1173. I.S. specifies following total number of grades of tolerances__________________?
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A. 22

B. 16

C. 18

D. 14

E. 20

1174. A tapered key which fits in a keyway in the hub and is flat on the shaft, is known as___________________?
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A. hollow saddle key

B. wood-ruff key

C. gib head key

D. flat saddle key

E. feather key

1175. Air fuel ratio at which a petrol engine can not work is_________________?
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A. 8:01

B. 10:01

C. 15:01

D. will work at all ratios

E. 20 : 1 and less
1176. The crest diameter of a screw thread is same as _____________________?
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A. core diameter

B. none of the above

C. pitch diameter

D. major diameter

E. minor diameter

1177. The salient feature of functional organisation is________________?
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A. work is properly planned and distributed

B. all of the above

C. separation of planning and design part

D. strict adherence to specification

E. each individual maintains functional efficiency

1178. Gaseous-fuel guarantees are based on___________________?
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A. all of the above

B. high heat value of oil

C. mean heat value of oil

D. calorific value of oil

E. low heat value of oil
1179. For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of _________________?
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A. 9:01

B. 12 : 1

C. 18:01

D. 20:01

E. 15:01

1180. Job evaluation is the method-of determining the________________?
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A. effectiveness of various alternatives

B. contribution of a worker

C. contribution of a job

D. skills required by a worker

E. relative worth of jobs
1181. Split nut is a locking device in which_________________?
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A. a hard fiber or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip

B. none of the above

C. a slot is cut partly in middle of nut and then slot reduced by tightening screw

D. one smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

E. through slots are made at top and a cotter-pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at the other end

1182. Cap screws are___________________?
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A. similar to stud

B. used to prevent relative motion be-tween parts

C. provided with detachable caps

D. slotted for a screw driver and generally used with a nut

E. similar tosmall size tap bolts except that a greater variety of shapes of heads are available
1183. The fuel in diesel engine is normally injected at pressure of_________________?
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A. 150-250 kg/cm2

B. 60-80 kg/cm2

C. 90-130 kg/cm2

D. 5-10 kg/cm2

E. 20-25 kg/cm2

1184. A diesel engine has_________________?
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A. 3 valves

B. 1 valve

C. 4 valves

D. 2 valves

E. no valve

1185. When a close coiled helical spring is compressed, its wire is subjected to________________?
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A. compression

B. none of the above

C. shear

D. tension

E. all of the above

1186. For the same compression ratio_____________________?
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A. Otto cycle is more efficient than the Diesel

B. Diesel cycle is more efficientthan Otto

C. both Otto and Diesel cycles are, equally efficient

D. compression ratio has nothing to do with efficiency

E. which is more efficient would depend on engine capacity

1187. A tap bolt_____________________?
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A. has a head on one end and a nut fitted to the other

B. has head at one end and other end fits into a tapped hole in the other part o be joined

C. has both the ends threaded

D. has pointed threads

E. requires locking devices

1188. The fatigue limit of a material____________________?
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A. remains same irrespective of surface conditions

B. is greatly decreased by poor surface conditions

C. is dependent upon yield strength of material

D. depends mainly on core composition

E. none of the above

1189. The draw of cotter need not exceed_________________?
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A. 10 mm

B. 25 mm

C. 20 mm

D. 5 mm

E. 3 mm
1190. An optimum project schedule implies_______________?
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A. optimum utilization of men, machines and materials

B. realistic execution time, minimum cost and maximum profits

C. timely execution of project

D. to produce best results under given constraints

E. lowest possible cost and shortest possible time for project
1191. In a typical medium speed 4-stroke cycle diesel engine________________?
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A. none of the above

B. compression starts at bottom dead center and ends at top dead center

C. compression starts at 10 before bottom dead center and, ends just before top dead center

D. may start and end anywhere

E. compression starts at 35 after bottom dead center and ends at top dead center
1192. If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the %age increase in efficiency will be________________?
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A. 8%

B. 27%.

C. 2%

D. 4%

E. 14%
1193. The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is___________________?
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A. 0.01 micron

B. 0.1 micron

C. 1 micron

D. 10 microns

E. 25 microns

1194. In standard taper roller bearings, the angle of taper of outer raceway is___________________?
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A. 8

B. 25

C. 5

D. 40.

E. 15

1195. The precess of breaking up or a lipuid into fine droplets by spraying is called___________________?
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A. atomisation

B. vaporisation

C. carburetion

D. injection

E. ionisation

1196. In order to obtain bolt of uniform strength____________________?
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A. all of the above

B. tighten die bolt properly

C. increase its length

D. drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread

E. increase shank diameter

1197. The magneto in an automobile is basically__________________?
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A. transformer

B. a.c. generator

C. magnetic circuit

D. capacitor

E. d.c. generator
1198. The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is_______________?
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A. more

B. less

C. same

D. unpredictable

E. less or more depending on operating conditions

1199. The piston rod of a steam engine is usually connected to the cross head by means of__________________?
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A. universal joint

B. bolted joint

C. kunckle joint

D. universal coupling

E. cotter joint
1200. A self locking screw has________________>
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A. hole for inserting split pin

B. fine threads

C. coefficient of friction > tangent of load angle

D. two nuts for locking

E. coarse threads