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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
If the flow of air through the compressor is parallel to its axis, then the compressor is

Centrifugal compressor
Axial flow compressor
Reciprocating compressor
Turbo compressor

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Compressors, Gas Turbines and Jet Engines
The efficiency and work ratio of a gas turbine plant can be increased by

Adding heat exchanger
Reheating the air after partial expansion in the turbine
All of these
Injecting water in/around combustion chamber

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Compressors, Gas Turbines and Jet Engines
The air-fuel ratio in gas turbines is of the order of

7: 1
15: 1
50: 1.
30: 1

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Compressors, Gas Turbines and Jet Engines
The ratio of the net work obtained from the gas turbine plant to the turbine work is known as

None of these
Work ratio
Compression ratio
Pressure ratio

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Compressors, Gas Turbines and Jet Engines
Stalling of blades in axial flow compressor is the phenomenon of

Air stream not able to follow the blade contour
Air stream blocking the passage
Unsteady periodic and reversed flow
Motion of air at sonic velocity

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Compressors, Gas Turbines and Jet Engines
Work ratio of a gas turbine may be improved by

Both (A) and (C) above
Increasing the turbine work
Decreasing the compression work
Increasing the compression work

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