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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The maximum propulsion efficiency of a turbojet is attained at around following speed

2400 km/hr
1050 km/hr
1700 km/hr
550 km/hr

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Compressors, Gas Turbines and Jet Engines
Euler's equation can be used for

All of these
Radial flow compressors
Axial flow compressors
Pumps

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Compressors, Gas Turbines and Jet Engines
An after-cooler is used to

Remove impurities from air
Cool the air
Reduce volume of air
Cause moisture and oil vapour to drop out

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Compressors, Gas Turbines and Jet Engines
Turbofan engine employs

Solid fuel firing
One air stream
Two or more air streams
No air stream

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

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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
Velocity coefficient
None of these

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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