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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The criterion of the thermodynamic efficiency for rotary compressor is

None of the listed here
Polytropic compression
Isentropic compression
Isothermal compression

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Compressors, Gas Turbines and Jet Engines
Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is

Equal
Lower
Higher
Can't be compared

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Compressors, Gas Turbines and Jet Engines
The velocity of air entering in a rocket is ___ as compared to an aircraft.

Same
More
Zero
Less

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Compressors, Gas Turbines and Jet Engines
The ratio of the indicated power to the shaft power or brake power of the motor or engine required to drive the compressor, is called

Compressor efficiency
Isothermal efficiency
Mechanical efficiency
Volumetric efficiency

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Compressors, Gas Turbines and Jet Engines
Ramjet engine

Requires no air for its operation
Is not self operating at zero flight speed
Is self operating at zero flight speed
Produces a jet consisting of plasma

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Compressors, Gas Turbines and Jet Engines
Which is false statement about advantages of multistage compressor in comparison to single stage compressor?

Lower volumetric efficiency
Better mechanical balance
Less loss of air due to leakage past the cylinder
Less power requirement

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