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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The most efficient method of compressing air is to compress it

Adiabatically
Isochronically
Isothermally
Isentropically

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Compressors, Gas Turbines and Jet Engines
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
Mechanical efficiency
Isothermal efficiency

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Compressors, Gas Turbines and Jet Engines
The clearance volume of the air compressor is kept minimum because

It allows maximum compression to be achieved
It greatly affects volumetric efficiency
It results in minimum work
It permits isothermal compression

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Compressors, Gas Turbines and Jet Engines
Reheating in a multistage expansion gas turbine ________ compressor work.

None of these
Has no effect on
Increases
Decreases

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Compressors, Gas Turbines and Jet Engines
An air compressor may be controlled by

Any one of the above
Blow off control
Throttle control
Clearance control

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Compressors, Gas Turbines and Jet Engines
The volume of air delivered by the compressor is called

Compressor capacity
Swept volume
None of the listed here
Free air delivery

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