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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
A large clearance volume in a reciprocating compressor results in

Lower delivery pressure
Reduced volume flow rate
Lower suction pressure
Increased volume flow rate

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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
0.41736111111111
0.62569444444444
2.5006944444444

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Compressors, Gas Turbines and Jet Engines
Surging is the phenomenon of

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

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Compressors, Gas Turbines and Jet Engines
The compressor capacity with decrease in suction temperature

Increases
May increase or decrease depending on compressor capacity
Decreases
Remain unaffected

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Compressors, Gas Turbines and Jet Engines
The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called

Velocity factor
Slip factor
None of these
Velocity coefficient

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Compressors, Gas Turbines and Jet Engines
The pressure and temperature conditions of air at the suction of compressor are

Slightly more than atmospheric
Pressure slightly less than atmospheric and temperature slightly more than atmospheric
Slightly less than atmospheric
Atmospheric

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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