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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
A rocket engine uses __________ for the combustion of its fuel.

Its own oxygen
Surrounding air
None of these
Compressed atmospheric air

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Compressors, Gas Turbines and Jet Engines
The type of rotary compressor used in gas turbines, is of

None of the listed here
Radial flow type
Axial flow type
Centrifugal type

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Compressors, Gas Turbines and Jet Engines
The mass of gas turbine per kW developed is about ________ as that of an I.C. engine.

One fourth
Same
One sixth
One-half

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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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Compressors, Gas Turbines and Jet Engines
The compressor capacity with decrease in suction temperature

Decreases
Increases
May increase or decrease depending on compressor capacity
Remain unaffected

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Compressors, Gas Turbines and Jet Engines
In axial flow compressor, exit flow angle deviation from the blade angle is a function of

Space-chord ratio
Blade camber and space-chord ratio
Blade camber and incidence angle
Blade camber

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