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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The ratio of isentropic work to Euler’s work is known as

Isentropic efficiency
Compressor efficiency
Pressure coefficient
Euler

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Compressors, Gas Turbines and Jet Engines
In a closed cycle gas turbine, the air is compressed

Isothermally
None of these
Isentropically
Polytropically

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

Constant temperature
None of the listed here
Constant pressure
Constant volume

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Compressors, Gas Turbines and Jet Engines
A closed gas turbine in which fuel is burnt directly in the air is not possible because of

Increasing gas temperature
Paucity of O2
High specific volume
High friction losses

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

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

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Compressors, Gas Turbines and Jet Engines
In a double acting compressor, the air is compressed

In one cylinder
In two cylinders on both sides of the piston
In two cylinders
In a single cylinder on both sides of the piston

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