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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The maximum compression ratio in an actual single stage axial flow compressor is of the order of

0.043055555555556
0.048611111111111
0.045138888888889
0.00070833333333333

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Compressors, Gas Turbines and Jet Engines
Reheating in a gas turbine

Decreases the thermal efficiency
Increases the compressor work
Increases the turbine work
Increases the thermal efficiency

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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
In air breathing jet engine, the jet is formed by expanding

Highly heated atmospheric air
Liquid
Plasma
Solids

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Compressors, Gas Turbines and Jet Engines
The indicated work per unit mass of air delivered is

Greatly affected by clearance volume
Directly proportional to clearance volume
Inversely proportional to clearance volume
Not affected by clearance volume

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Compressors, Gas Turbines and Jet Engines
Propulsion efficiency of the following order is obtained in practice

0.72
0.6
0.5
0.34

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