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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Isothermal compression efficiency can be attained by running the compressor

At very slow speed
At very high speed
At average speed
At zero speed

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Compressors, Gas Turbines and Jet Engines
Inter cooling in compressors

Cools the delivered air
Is the standard practice for big compressors
Enables compression in two stages
Results in saving of power in compressing a given volume to given pressure

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Compressors, Gas Turbines and Jet Engines
The indicated work per unit mass of air delivered is

Not affected by clearance volume
Directly proportional to clearance volume
Greatly affected by clearance volume
Inversely proportional to clearance volume

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Compressors, Gas Turbines and Jet Engines
In air breathing jet engine, the jet is formed by expanding

Plasma
Liquid
Solids
Highly heated atmospheric air

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Compressors, Gas Turbines and Jet Engines
The performance of air compressor at high altitudes will be ________ as compared to that at sea level.

None of these
Higher
Lower
Same

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Compressors, Gas Turbines and Jet Engines
Losses in a centrifugal compressor are due to

Inlet losses
Impeller channel losses
Diffuser losses
All of the listed here

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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