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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
In an axial flow compressor, the ratio of pressure in the rotor blades to the pressure rise in the compressor in one stage is known as

Work factor
Pressure coefficient
Slip factor
Degree of reaction

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Compressors, Gas Turbines and Jet Engines
The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of

0.99
0.9
0.85
0.75

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Compressors, Gas Turbines and Jet Engines
After-cooler is used to

Decrease the delivery temperature for ease in handling
Cause moisture and oil vapour to drop out
Cool the air
Reduce volume

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Compressors, Gas Turbines and Jet Engines
The ratio of work done per cycle to the swept volume in case of compressor is called

Mean effective pressure
Compressor efficiency
Compression ratio
Compression index

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Compressors, Gas Turbines and Jet Engines
Maximum temperature in a gas turbine is of the order of

700°C
1500°C
2000°C
1000°C

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Compressors, Gas Turbines and Jet Engines
The compressor performance at higher altitude compared to sea level will be

Lower
Dependent on other factors
Higher
Same

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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