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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known as

Isothermal efficiency
Mechanical efficiency
Volumetric efficiency
Compressor efficiency

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Compressors, Gas Turbines and Jet Engines
The compressor performance at higher altitude compared to sea level will be

Lower
Dependent on other factors
Higher
Same

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Compressors, Gas Turbines and Jet Engines
The volume of air sucked by the compressor during its suction stroke is called

None of these
Free air delivery
Compressor capacity
Swept volume

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Compressors, Gas Turbines and Jet Engines
In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs at

Diffuser outlet radius
Impeller inlet radius
Impeller outlet radius
Diffuser inlet radius

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Compressors, Gas Turbines and Jet Engines
The gas in cooling chamber of a closed cycle gas turbine is cooled at

None of the listed here
Constant pressure
Constant temperature
Constant volume

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Compressors, Gas Turbines and Jet Engines
Inter-cooling in multistage compressors is done

To enable compression in two stages
To minimize the work of compression
To cool the air during compression
To cool the air at delivery

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