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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The volume of air delivered in a medium capacity air compressor per unit time is

0.1 to 1.2 m³/s
None of these
Above 5 m³/s
0.15 to 5 m³/s

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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

0.01
0.001
0.005
0.05

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

0.83402777777778
0.41736111111111
0.62569444444444
2.5006944444444

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

Same
Lower
Higher
Dependent on other factors

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Compressors, Gas Turbines and Jet Engines
Inter cooling in compressors

Is the standard practice for big compressors
Results in saving of power in compressing a given volume to given pressure
Enables compression in two stages
Cools the delivered air

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Compressors, Gas Turbines and Jet Engines
The air is delivered ________ in one revolution in case of a three lobbed rotor.

Three times
Two times
Six times
Four times

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