Compressors, Gas Turbines and Jet Engines
Rotary compressor is best suited for

Small quantity of air at low pressure
Large quantity of air at low pressure
Small quantity of air at high pressure
Large quantity of air at high pressure

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Compressors, Gas Turbines and Jet Engines
The mean effective pressure of the compressor is the

None of these
Volume of air delivered by the compressor
Volume of air sucked by the compressor during its suction stroke
Actual volume of the air delivered by the compressor when reduced to normal temperature and pressure conditions

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Compressors, Gas Turbines and Jet Engines
Which of the following statement is correct as regard to centrifugal compressors?

The impeller rotates at high speeds
The maximum efficiency is higher than multistage axial flow compressors
The static pressure of air in the impeller increases in order to provide centripetal force on the air
The flow of air is parallel to the axis of the compressor

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