99) A compressor at high altitudes will require __________ power.

same

less

none of these

Answer is:

less

Compressors Gas dynamics and Gas Turbines MCQ with Answers

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Related Compressors Gas dynamics and Gas Turbines MCQ with Answers

100) The mean effective pressure of the compressor is the

actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions

volume of air delivered by the compressor

volume of air sucked by the compressor during its suction stroke

none of the above

Answer is:

none of the above

101) The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is

pressure drop across the valves

superheating in compressor

clearance volume and leakages

all of these

Answer is:

all of these

Explanation:

The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is
* pressure drop across the valves
* superheating in compressor
* clearance volume and leakages

102) For minimum work in multi-stage compression, the workdone on all stages should be equal.

Yes

Unknown

None

Answer is:

Yes

103) The thrust of a jet propulsion power unit can be increased by

injecting water into the compressor

burning fuel after gas turbine

injecting ammonia into the combustion chamber

all of the above

Answer is:

all of the above

Explanation:

The thrust of a jet propulsion power unit can be increased by
* injecting water into the compressor
* burning fuel after gas turbine
* injecting ammonia into the combustion chamber

Compressors Gas dynamics and Gas Turbines MCQ with Answers

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