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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The working fluid in a turbine is

In three phases
In two phases
In a single phase
In the form of air and water mixture

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Compressors, Gas Turbines and Jet Engines
In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs at

Impeller outlet radius
Impeller inlet radius
Diffuser outlet radius
Diffuser inlet radius

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Compressors, Gas Turbines and Jet Engines
The maximum delivery pressure in a rotary air compressor is

20 bar
10 bar
30 bar
50 bar

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Compressors, Gas Turbines and Jet Engines
The compression ratio for the compressor is always _________ unity.

Equal to
More than
None of these
Less than

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Compressors, Gas Turbines and Jet Engines
Work ratio of a gas turbine plant is ratio of

Net work output and work done by turbine
Work done by turbine and heat supplied
Work done by turbine and net work output
Net work output and heat supplied

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Compressors, Gas Turbines and Jet Engines
Ratio of indicated h.p. to shaft h.p. in known as

Compressor efficiency
Mechanical efficiency
Volumetric efficiency
Isothermal efficiency

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