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Compressors, Gas Turbines and Jet Engines

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

One-half
Same
One fourth
One sixth

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Compressors, Gas Turbines and Jet Engines
Efficiency of gas turbine is increased by

Inter cooling
Adding a regenerator
All of the listed here
Reheating

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

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

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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
0.048611111111111
0.00070833333333333
0.045138888888889

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Compressors, Gas Turbines and Jet Engines
Rotary compressors are suitable for

Low discharge at high pressure
Large discharge at low pressure
Low discharge at low pressure
Large discharge at high pressure

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Compressors, Gas Turbines and Jet Engines
Which of the following fuels can be used in turbojet engines?

High speed diesel oil
Kerosene
Liquid hydrogen
Methyl alcohol

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