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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
During peak load periods, the best method of controlling compressors is

Start-stop motor
Constant speed unloader
Relief valve
Variable speed

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Compressors, Gas Turbines and Jet Engines
Axial flow compressor has the following advantage over centrifugal compressor

Aerofoil blades are used
Higher average velocities
Higher pressure ratio per stage
Larger air handling ability per unit frontal area

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Compressors, Gas Turbines and Jet Engines
Gas turbine works on

Rankine cycle
Ericsson cycle
Carnot cycle
Brayton or Atkinson cycle

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Compressors, Gas Turbines and Jet Engines
The performance of air compressor at high altitudes will be ________ as compared to that at sea level.

None of these
Higher
Same
Lower

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Compressors, Gas Turbines and Jet Engines
The axial flow compressor is preferred in aircraft gas turbines because of

High pressure rise
None of the listed here
Higher thrust
Low frontal area

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Compressors, Gas Turbines and Jet Engines
Inter-cooling in multistage compressors is done

To minimize the work of compression
To enable compression in two stages
To cool the air during compression
To cool the air at delivery

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