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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Volumetric efficiency of a compressor decreases with ________ in compression ratio.

Does not change
Increase
Decrease
Remain same

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Compressors, Gas Turbines and Jet Engines
The ratio of work-done per cycle to the stroke volume of the compressor is known as

Compressor capacity
Compression ratio
Mean effective pressure
Compressor efficiency

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Compressors, Gas Turbines and Jet Engines
Reciprocating air compressor is best suited for

Large quantity of air at low pressure
Small quantity of air at low pressure
Large quantity of air at high pressure
Small quantity of air at high pressure

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Compressors, Gas Turbines and Jet Engines
The ratio of isentropic work to Euler’s work is known as

Euler
Compressor efficiency
Pressure coefficient
Isentropic efficiency

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Compressors, Gas Turbines and Jet Engines
Gas turbine cycle with regenerator

Increases thermal efficiency
Allows high compression ratio
Decreases heat loss is exhaust
Allows operation at very high altitudes

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Compressors, Gas Turbines and Jet Engines
The type of rotary compressor used in aeroplanes, is of

Axial flow type
Centrifugal type
Radial flow type
None of these

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