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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Air-fuel ratio in a jet engine will be of the order of

2.5006944444444
0.83402777777778
0.62569444444444
0.41736111111111

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Compressors, Gas Turbines and Jet Engines
For supplying intermittent small quantity of air at high pressure, following compressor is best suited

Centrifugal
Reciprocating
Axial
Screw

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Compressors, Gas Turbines and Jet Engines
The pressure of air at the beginning of the compression stroke is ___ the atmospheric pressure.

Equal to
None of the listed here
Less than
More than

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Compressors, Gas Turbines and Jet Engines
What will be the volume of air at 327°C if its volume at 27°C is 1.5 m³/ mt?

18 m³/ mt.
3 m³/ mt.
6 m³/ mt.
1.5 m³/ mt.

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

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

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Compressors, Gas Turbines and Jet Engines
The effective power of gas turbines is increased by adding the following in compressor

Ammonia and water vapour
Hydrogen
Nitrogen
Carbon dioxide

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