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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in ________ of the piston.

Four strokes
Three strokes
One stroke
Two strokes

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Compressors, Gas Turbines and Jet Engines
In a single stage, single acting reciprocating air compressor, without clearance, the work-done on the air during isentropic compression is ________ the heat required to raise the temperature of air from T₁ to T₂ at a constant pressure.

Equal to
Less than
Greater than
None of these

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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
Compression index
Compression ratio
Compressor efficiency

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Compressors, Gas Turbines and Jet Engines
The minimum work required for a three stage reciprocating air compressor is ___ the work required for each stage.

Equal to
Three times
Six times
Double

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

0.41736111111111
2.5006944444444
0.83402777777778
0.62569444444444

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Compressors, Gas Turbines and Jet Engines
The type of rotary compressor used in aeroplanes, is of

Centrifugal type
Axial flow type
None of these
Radial flow type

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