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Compressors, Gas Turbines and Jet Engines

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?

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

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

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

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Compressors, Gas Turbines and Jet Engines
Losses in a centrifugal compressor are due to

All of the listed here
Impeller channel losses
Inlet losses
Diffuser losses

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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

0.99
0.75
0.85
0.9

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Compressors, Gas Turbines and Jet Engines
Ram compression in turbojet involves

Reduction of speed of incoming air and conversion of part of it into pressure energy
Compression of inlet air
Lost work
Increasing speed of incoming air

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Compressors, Gas Turbines and Jet Engines
The minimum work required for a three stage reciprocating air compressor is ___ the work required for each stage.

Equal to
Double
Six times
Three times

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