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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Losses in a centrifugal compressor are due to

Diffuser losses
All of the listed here
Inlet losses
Impeller channel losses

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

Higher
Lower
Same
Dependent on other factors

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Compressors, Gas Turbines and Jet Engines
Isothermal compression though most efficient, but is not practicable because

It requires very big cylinder
Compressor has to run at very slow speed to achieve it
It does not increase pressure much
It is impossible in practice

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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

Volumetric efficiency
Compressor efficiency
Mechanical efficiency
Isothermal efficiency

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Compressors, Gas Turbines and Jet Engines
The main purpose of reheating in gas turbine is to

Increase temperature
Reduce turbine size
Increase power output
Increase speed

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Compressors, Gas Turbines and Jet Engines
The net work input required for compressor with increase in clearance volume

Decreases
Increases/decreases depending on compressor capacity
Remains same
Increases

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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