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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
More than one stage will be preferred for reciprocating compressor if the delivery pressure is more than

6 kg/cm²
10 kg/cm²
14.7 kg/cm²
2 kg/cm²

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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 sixth
One fourth

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Compressors, Gas Turbines and Jet Engines
The criterion of the thermodynamic efficiency for rotary compressor is

None of the listed here
Isothermal compression
Polytropic compression
Isentropic compression

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Compressors, Gas Turbines and Jet Engines
A machine used to raise the pressure of air is called

Compressor
Air motor
I.C engine
Gas turbine

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

None of these
More than
Equal to
Less than

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Compressors, Gas Turbines and Jet Engines
Compression efficiency is compared against

Adiabatic compression
Isentropic compression
Isothermal compression
Ideal compression

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