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Compressors, Gas Turbines and Jet Engines

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

20 bar
30 bar
10 bar
50 bar

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Compressors, Gas Turbines and Jet Engines
Adiabatic compression is one in which

Temperature rise follows a linear relationship
Temperature during compression remains constant
Work done is maximum
No heat leaves or enters the compressor cylinder during compression

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Compressors, Gas Turbines and Jet Engines
In air breathing jet engine, the jet is formed by expanding

Solids
Liquid
Highly heated atmospheric air
Plasma

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Compressors, Gas Turbines and Jet Engines
In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to

N.T.P. conditions
Intake temperature and pressure conditions
0°C and 1 kg/cm²
20°C and 1 kg/cm²

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Compressors, Gas Turbines and Jet Engines
The compressor efficiency is the

Total output/air input
Isothermal H.P./shaft H.R
Compression work/motor input
Isothermal H.P/indicated H.R

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Compressors, Gas Turbines and Jet Engines
The output of a gas turbine is 300 KW and its efficiency is 20 percent, the heat supplied is

15 KW
600 KW
6000 KW
150 KW

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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