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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The compression ratio for the compressor is always _________ unity.

More than
Less than
Equal to
None of these

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Compressors, Gas Turbines and Jet Engines
Phenomenon of choking in compressor means

Fixed mass flow rate regardless of pressure ratio
Increased inclination of chord with air steam
No flow of air
Reducing mass flow rate with increase in pressure ratio

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Compressors, Gas Turbines and Jet Engines
When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

Equal to
Less than
None of these
More than

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Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the branch connections from compressed air lines should be taken from

Top side of main
Left side of main
Bottom side of main
Right side of main

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Compressors, Gas Turbines and Jet Engines
The temperature of air at the beginning of the compression stroke is ________ the atmospheric temperature.

None of these
Less than
Equal to
More than

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Compressors, Gas Turbines and Jet Engines
The volumetric efficiency of a compressor

Decreases with increase in compression ratio
Decreases with decrease in compression ratio
Increases with increase in compression ratio
Increases with decrease in compression ratio

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