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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The most efficient method of compressing air is to compress it

Adiabatically
Isochronically
Isothermally
Isentropically

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Compressors, Gas Turbines and Jet Engines
The air-fuel ratio in gas turbines is of the order of

7: 1
50: 1.
30: 1
15: 1

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Compressors, Gas Turbines and Jet Engines
The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of

0.9
0.75
0.99
0.85

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

I.C engine
Compressor
Gas turbine
Air motor

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Compressors, Gas Turbines and Jet Engines
Which is false statement about air receivers?

These act as reservoir to take care of sudden demands
These are used to dampen pulsations
These increase compressor efficiency
These knock out some oil and moisture

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Compressors, Gas Turbines and Jet Engines
The compressor performance at higher altitude compared to sea level will be

Same
Dependent on other factors
Higher
Lower

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