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Compressors, Gas Turbines and Jet Engines

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

Isothermal compression
Isentropic compression
None of the listed here
Polytropic compression

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Compressors, Gas Turbines and Jet Engines
The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is

Superheating in compressor
Clearance volume and leakages
All of these
Pressure drop across the valves

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Compressors, Gas Turbines and Jet Engines
Pressure ratio in gas turbines is the ratio of

Inlet pressure to exhaust pressure
Highest pressure to exhaust pressure
Pressures across the turbine
Compressor pressure ratio

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Compressors, Gas Turbines and Jet Engines
The capacity of a compressor is expressed in

m³/kg
m³/min
kg/m²
kg/m³

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Compressors, Gas Turbines and Jet Engines
The fuel consumption in gas turbines is accounted for by

Heating value
Higher calorific value
Higher heating value
Lower heating value

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Compressors, Gas Turbines and Jet Engines
Volumetric efficiency is

The ratio of stroke volume to clearance volume
Reciprocal of compression ratio
Index of compressor performance
The ratio of the air actually delivered to the amount of piston displacement

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