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Compressors, Gas Turbines and Jet Engines

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

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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
0.005
0.01
0.05

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Compressors, Gas Turbines and Jet Engines
A large clearance volume in a reciprocating compressor results in

Lower delivery pressure
Reduced volume flow rate
Increased volume flow rate
Lower suction pressure

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Compressors, Gas Turbines and Jet Engines
Only rocket engines can be propelled to space because

They are not air breathing engines
They can generate very high thrust
These engines can work on several fuels
They have high propulsion efficiency

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

None of these
Equal to
Less than
More than

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Compressors, Gas Turbines and Jet Engines
The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called

Pressure ratio
Pressure coefficient
Degree of reaction
Slip factor

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