mechanical engineering MCQs – Page 67

Practise multiple-choice questions from mechanical engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

mechanical engineering Mcqs

1. compressors gas turbines and jet engines 2. theory of machines 3. nuclear power plants 4. engineering materials 5. strength of materials mechanical engineering 6. thermodynamics 7. heat transfer 8. i c engines 9. steam boilers engines nozzles and turbines 10. engineering mechanics 11. fluid mechanics mechanical engineering 12. production technology 13. machine design 14. hydraulic machines 15. workshop technology 16. refrigeration and air conditioning

1321. Which of the following is not wage incentive plan_________________?
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A. Emerson plan

B. Halsey plan

C. Rowan plan

D. differential piece rate system

E. Taylor plan

1322. The pistons are usually given a coating such as tin plating in order to________________?
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A. increase lubrication effect

B. conduct heat efficiently

C. reduce possibility of scoring

D. reduce friction

E. reduce weight

1323. According to Rowan plan, if H = hourly rate, A = actual time and S = standard time, then wages will be___________________?
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A. HA + ^^-H

B. HA + ^^-HA

C. HA

D. HA + ^^-H

E. HA + (S~A) HA

1324. The wastage of material in the store is taken into account by the following method in the evaluation of the material issued from the store_______________?
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A. primary cost method

B. current value method

C. variable price method

D. fixed price method

E. inflated system

1325. PERT has following time estimate_________________?
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A. nil time estimate

B. two time estimate

C. one time estimate

D. three time estimate

E. four time estimate

1326. Micromotion study is__________________?
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A. subdivision of an operation into therbligs and their analysis

B. motion study of small components upto mirco-seconds

C. analysis of one stage of motion study

D. minute and detailed motion study

E. enlarged view of motion study

1327. The essential equipment for producing high vlotage for sparking in petrol engines with battery is_______________?
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A. ignition coil and condenser

B. ignition coil, contact breaker and con-denser

C. ignition coil and contact breaker

D. ignition coil

E. ignition coil and distributor

1328. Self-ignition temperature of petrol is of the order of___________________?
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A. 240C

B. 450C

C. more than 500C.

D. 370C

E. 150C

1329. In petrol engines, advancing the spark timing will_______________?
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A. unpredictable

B. decrease the knocking tendency

C. not affect the knocking tendncy

D. increase or decrease knocking tendency depending on strenght and time of spark

E. increase the knocking tendency

1330. Father of industrial engineering is_________________?
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A. none of the above

B. Taylor

C. Jeck Gilberth

D. Newton

E. Gnatt

1331. PMTP (predetermined motion time systems) include___________________?
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A. BNTS (basic motion time study)

B. MTM (method time measurement)

C. none of the above

D. WFS (work factor systems)

E. all of the above

1332. Ignition quality of diesel-fuel oil is expressed by an index called__________________?
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A. carbon content

B. ignition temperature

C. cetane number

D. octane number

E. calorific value

1333. The delay period in petrol engine is of the order of__________________?
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A. 0.1 sec

B. 0.002 see

C. 0.05 sec

D. 0.001 sec

E. 0.01 sec

1334. In Lincoln plan (one type of group incentive plan), the amount of the profit which an .employee receives in addition to the guaranteed basic _________________?
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A. a standard rating system

B. his individual performance

C. /wages, is based on :

D. all of the above

E. a job evaluation system

F. a merit rating system

1335. Monte Carlo solutions in queuing theory are extremely useful in queuing problems_________________?
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A. involving multistage queuing

B. all of the above

C. that cant be analysed mathematically

D. none of the above

E. to verify mathematical results

1336. Pick up the correct statement about relationship between various floats______________________?
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A. free float = total float

B. independent float = total float

C. independent float > free float

D. free float > total float

E. independent float < free float

1337. The deductions for, employees provident fund start________________?
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A. after 60 days of joining the service

B. after 240 days of joining the service

C. immediately on joining the service

D. after 100 days of joining the service

E. after one year of joining the service

1338. The specific fuel consumption for a petrol engine first decreases with increase in fuel air ratio and then increases with further increase in fuel air ratio. The minimum value occurs in the range of__________________?
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A. rich mixture

B. lean mixture

C. none of the above

D. chemically correct mixture

E. unpredictable

1339. What does symbol V employ in work study________________?
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A. inspection

B. permanent storage

C. delay/ temporary Storage

D. operation

E. none of the above

1340. The important file in making a PERT is__________________?
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A. an event cant be accomplished until activities leading to it are completed

B. length of arrow has nothing to do with time

C. no activity from any event can be started from preceding event till it is completed

D. all of the above

E. every activity must be completed before end point is reached

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