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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The volumetric efficiency for reciprocating air compressors is about

40 to 60%
10 to 40%
70 to 90%
60 to 70%

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Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the branch connections from compressed air lines should be taken from

Top side of main
Bottom side of main
Right side of main
Left side of main

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Compressors, Gas Turbines and Jet Engines
Turbofan engine employs

Solid fuel firing
No air stream
Two or more air streams
One air stream

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Compressors, Gas Turbines and Jet Engines
Mining industry usually employs following motive power

C. electric motor
Petrol engine
Diesel engine
Compressed air

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Compressors, Gas Turbines and Jet Engines
The volumetric efficiency of a compressor falls roughly as follows for every 5°C increase in atmospheric temperature

0.001
0.05
0.005
0.01

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Compressors, Gas Turbines and Jet Engines
In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the delivery pressure at the fourth stage will be

64 bar
256 bar
1 bar
16 bar

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