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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
1 m of air at atmospheric condition weighs approximately

2.2 kg
0.5 kg
1.3 kg
1.0 kg

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Compressors, Gas Turbines and Jet Engines
The capacity of a compressor is 5 m/min refers to

Free air
Standard air
Compressed air at delivery pressure
Compressed air

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Compressors, Gas Turbines and Jet Engines
The maximum combustion pressure in gas turbine as compared to I.C. engine is

Less
Same
More
Depends on other factors

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Compressors, Gas Turbines and Jet Engines
It is not possible to use closed gas turbine cycle in aeronautical engines because

It requires cooling water for its operation
None of these
It is inefficient
It is bulky

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Compressors, Gas Turbines and Jet Engines
A turboprop is preferred to turbojet because

It can fly at supersonic speeds
It can fly at high elevations
It has high power for take off
It has high propulsive efficiency at high speeds

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

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

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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