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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Compression efficiency is compared against

Adiabatic compression
Isothermal compression
Isentropic compression
Ideal compression

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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

Isothermal efficiency
Compressor efficiency
Mechanical efficiency
Volumetric efficiency

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Compressors, Gas Turbines and Jet Engines
The criterion of the thermodynamic efficiency for rotary compressor is

Isentropic compression
Isothermal compression
None of the listed here
Polytropic compression

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

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

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Compressors, Gas Turbines and Jet Engines
The main purpose of reheating in gas turbine is to

Increase speed
Increase temperature
Reduce turbine size
Increase power output

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Compressors, Gas Turbines and Jet Engines
Phenomenon of choking in compressor means

Increased inclination of chord with air steam
No flow of air
Reducing mass flow rate with increase in pressure ratio
Fixed mass flow rate regardless of pressure ratio

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