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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
In a single acting reciprocating air compressor, without clearance, the compression of air may be

Polytropic
Isothermal
Isentropic
Any one of these

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Compressors, Gas Turbines and Jet Engines
The thrust on the rotor in a centrifugal compressor is produced by

Radial component
Axial component
None of these
Tangential component

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Compressors, Gas Turbines and Jet Engines
The ratio of isentropic work to Euler’s work is known as

Euler
Compressor efficiency
Isentropic efficiency
Pressure coefficient

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Compressors, Gas Turbines and Jet Engines
In turbo fan engine, the jet velocity as compared to turbojet engine is

Less
More
Same
May be less or more depending upon speed

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Compressors, Gas Turbines and Jet Engines
For speed above 3000 km/hour, it is more advantageous to use

Propellers
Ramjet engine
Turbojet engine
Rockets

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

Uses surrounding air
Uses compressed atmospheric air
Does not require oxygen
Carries its own oxygen

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