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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The net work input required for compressor with increase in clearance volume

Remains same
Increases/decreases depending on compressor capacity
Increases
Decreases

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Compressors, Gas Turbines and Jet Engines
The volumetric efficiency of a compressor

Decreases with increase in compression ratio
Increases with increase in compression ratio
Increases with decrease in compression ratio
Decreases with decrease in compression ratio

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

Higher calorific value
Lower heating value
Heating value
Higher heating value

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Compressors, Gas Turbines and Jet Engines
For supplying intermittent small quantity of air at high pressure, following compressor is best suited

Reciprocating
Axial
Screw
Centrifugal

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Compressors, Gas Turbines and Jet Engines
Air-fuel ratio in a jet engine will be of the order of

0.83402777777778
0.62569444444444
2.5006944444444
0.41736111111111

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Compressors, Gas Turbines and Jet Engines
In a centrifugal compressor, the flow of air is ________ to the axis of compressor.

Perpendicular
None of these
Parallel
Inclined

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