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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Ratio of indicated h.p. to shaft h.p. in known as

Isothermal efficiency
Compressor efficiency
Volumetric efficiency
Mechanical efficiency

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

Increases
Increases/decreases depending on compressor capacity
Decreases
Remains same

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

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

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Compressors, Gas Turbines and Jet Engines
When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades are said to be

Radial
Forward curved
Backward curved
None of the listed here

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Compressors, Gas Turbines and Jet Engines
The maximum delivery pressure in a rotary air compressor is

10 bar
30 bar
50 bar
20 bar

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Compressors, Gas Turbines and Jet Engines
After-cooler is used to

Cause moisture and oil vapour to drop out
Decrease the delivery temperature for ease in handling
Reduce volume
Cool the air

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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