Mechanical Engineering - IC Engines and Nuclear Power Plants

46. 

High speed compression engines operate on

A. Otto cycle
B. Diesel cycle
C. Dual-combustion cycle
D. all of these

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

47. 

In a four stroke cycle petrol engine, the inlet valve

A. opens at top dead centre and closes at bottom dead centre
B. opens at 20° before top dead centre and closes at 40° after bottom dead centre
C. opens at 20° after top dead centre and closes at 20° before bottom dead centre id) may open or close anywhere

Answer: Option B

Explanation:

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48. 

The nuclear power station at Tarapur has the reactor of the __________ type.

A. pressurized water
B. boiling water
C. gas cooled
D. liquid metal cooled

Answer: Option B

Explanation:

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49. 

In nuclear power plants, due to reflector, less fuel is needed to generate sufficient neutrons to sustain a chain reaction.

A. Yes
B. No

Answer: Option A

Explanation:

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50. 

The secondary fuel used in nuclear power plants is

A. U233 and Pu239
B. U235 and Th232
C. U235 and Pu238
D. U233 and Pu238

Answer: Option A

Explanation:

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