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Compressors, Gas Turbines and Jet Engines

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

Kerosene
Methyl alcohol
Liquid hydrogen
High speed diesel oil

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

Inter cooling
Reheating
Adding a regenerator
All of the listed here

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Compressors, Gas Turbines and Jet Engines
Work ratio of a gas turbine may be improved by

Decreasing the compression work
Both (A) and (C) above
Increasing the turbine work
Increasing the compression work

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Compressors, Gas Turbines and Jet Engines
Rotary compressors are used for delivering

Small quantities of air at high pressures
Large quantities of air at high pressures
Large quantities of air at low pressures
Small quantities of air at low pressures

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Compressors, Gas Turbines and Jet Engines
The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called

None of these
Slip factor
Velocity coefficient
Velocity factor

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Compressors, Gas Turbines and Jet Engines
The work done per unit mass of air in compression will be least when 'n' is equal to

1.2
1.3
1
1.4

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