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Compressors, Gas Turbines and Jet Engines

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

Perpendicular
Parallel
None of these
Inclined

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Compressors, Gas Turbines and Jet Engines
The capacity of a compressor is 5 m/min refers to

Compressed air at delivery pressure
Standard air
Free air
Compressed air

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Compressors, Gas Turbines and Jet Engines
Atmospheric pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm. The air pressure will be

1.03 kg/cm²
1.06 kg/cm²
0.53 kg/cm²
1.00 kg/cm²

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

Cool the air
Reduce volume
Cause moisture and oil vapour to drop out
Decrease the delivery temperature for ease in handling

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Compressors, Gas Turbines and Jet Engines
The compressed air may be used

In starting and supercharging of I.C. engines
For operating pneumatic drills
All of the listed here
In gas turbine plants

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Compressors, Gas Turbines and Jet Engines
Which is false statement about air receivers?

These increase compressor efficiency
These act as reservoir to take care of sudden demands
These are used to dampen pulsations
These knock out some oil and moisture

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