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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Gas turbine blades are given a rake

Opposite to the direction of motion of blades
Depending on the velocity
In the direction of motion of blades
Equal to zero

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Compressors, Gas Turbines and Jet Engines
Aeroplanes employ following type of compressor

Radial flow
None of these
Axial flow
Centrifugal

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Compressors, Gas Turbines and Jet Engines
Euler's equation is applicable for

Axial compressor
Centrifugal compressor
Pumps
All of these

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Compressors, Gas Turbines and Jet Engines
Pick up the wrong statement about advantages of multistage compression

Better lubrication is possible advantages of multistage
More loss of air due to leakage past the cylinder
Mechanical balance is better
Air can be cooled perfectly in between

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Compressors, Gas Turbines and Jet Engines
In a centrifugal compressor, an increase in speed at a given pressure ratio causes

Increase in flow
Increase in flow and decrease in efficiency
Decrease in flow
Increase in efficiency

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Compressors, Gas Turbines and Jet Engines
The maximum compression ratio in an actual single stage axial flow compressor is of the order of

0.043055555555556
0.045138888888889
0.048611111111111
0.00070833333333333

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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