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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
With the decrease in compression ratio, the volumetric efficiency

Decreases
First decrease and then increase
Does not change
Increases

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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

Volumetric efficiency
Mechanical efficiency
Compressor efficiency
Isothermal efficiency

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Compressors, Gas Turbines and Jet Engines
Euler's equation can be used for

Radial flow compressors
All of these
Pumps
Axial flow compressors

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Compressors, Gas Turbines and Jet Engines
As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure ratio

Increases
Remain same
Decreases
First increases and then decreases

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Compressors, Gas Turbines and Jet Engines
Rotary compressors are suitable for

Large discharge at high pressure
Low discharge at high pressure
Large discharge at low pressure
Low discharge at low pressure

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Compressors, Gas Turbines and Jet Engines
The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is

Low/high depending on make and type
High
Same
Low

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