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ME Set-1
Compressors Gas dynamics and Gas Turbines
45

Compressors Gas dynamics and Gas Turbines MCQ with Answers

45) The ratio of the indicated power to the shaft power or brake power of the motor or engine required to drive the compressor, is called

compressor efficiency

volumetric efficiency

isothermal efficiency

mechanical efficiency

Answer is:

mechanical efficiency

Compressors Gas dynamics and Gas Turbines MCQ with Answers

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Related Compressors Gas dynamics and Gas Turbines MCQ with Answers

46) The increase in pressure in a roots blower is entirely due to back flow of air.

Agree

Disagree

Answer is:

Agree

47) The type of rotary compressor used in aeroplanes, is of

centrifugal type

axial flow type

radial flow type

none of these

Answer is:

axial flow type

48) An axial compressor gives optimum performance at high speeds and large volume flows.

Agree

Disagree

Answer is:

Agree

49) In a reciprocating air compressor, the compression work per kg of air

increases as clearance volume increases

decreases as clearance volume increases

is independent of clearance volume

increases as clearance volume decreases

Answer is:

is independent of clearance volume

Compressors Gas dynamics and Gas Turbines MCQ with Answers

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