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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Gas turbine as compared to internal combustion engine

Produces uniform torque
Has more efficiency
All of the listed here
Can be driven at a very high speed

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Compressors, Gas Turbines and Jet Engines
Volumetric efficiency of air compressors is of the order of

20 - 30%
70 - 90%
60 - 70%
40 - 50%

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Compressors, Gas Turbines and Jet Engines
The ratio of work-done per cycle to the stroke volume of the compressor is known as

Compression ratio
Mean effective pressure
Compressor capacity
Compressor efficiency

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Compressors, Gas Turbines and Jet Engines
In a single acting reciprocating air compressor, without clearance, the compression of air may be

Isothermal
Any one of these
Isentropic
Polytropic

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Compressors, Gas Turbines and Jet Engines
Gas turbines use following type of air compressor

Reciprocating type
Axial flow type
Centrifugal type
Lobe type

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Compressors, Gas Turbines and Jet Engines
The effective power of gas turbines is increased by adding the following in compressor

Ammonia and water vapour
Carbon dioxide
Nitrogen
Hydrogen

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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