IC Engines and Nuclear Power Plants – Section 2

11. In qualitative governing, the quantity of fuel is varied to suit the load on the engine and the total charge of air is altered.

A. Correct
B. Incorrect

Correct Answer: B. Incorrect

12. The function of a distributor in a coil ignition system of I.C. engines is

A. to distribute spark
B. to distribute power
C. to distribute current
D. to time the spark

Correct Answer: D. to time the spark

13. A moderator, apart from its high neutron slowing power, and low non-productive neutron should be

A. stable under nuclear radiation
B. corrosion resistant
C. good thermal conductor
D. all of these

Correct Answer: D. all of these

14. The frictional power (F.P.) is given by

A. F.P. = B.P. – I.P.
B. F.P. = I.P. – B.P.
C. F.P. = B.P./I.P.
D. F.P. = I.P./B.P

Correct Answer: B. F.P. = I.P. – B.P.

15. The unit million electron volts (Mev) is commonly used to measure the nuclear energy.

A. True
B. False

Correct Answer: A. True

16. The knocking tendency in spark ignition engines can be decreased by adding dopes like tetraethyl lead and ethylene dibromide.

A. Agree
B. Disagree

Correct Answer: A. Agree

17. If V1 is the jet velocity and V0 is the vehicle velocity, then the propulsive efficiency of a rocket is given by

ic-se2-17

Correct Answer: Option A

18. A diesel engine has compression ratio from

A. 6 to 10
B. 10 to 15
C. 15 to 25
D. 25 to 40

Correct Answer: C. 15 to 25

19. A petrol engine, during suction stroke draws

A. air only
B. petrol only
C. a mixture of petrol and air

Correct Answer: C. a mixture of petrol and air

20. A supercharged engine as compared to an ordinary engine

A. requires smaller foundation
B. is lighter
C. consumes less lubricating oil
D. all of these

Correct Answer: D. all of these

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