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Compressors, Gas Turbines and Jet Engines

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
The type of rotary compressor used in aeroplanes, is of

Radial flow type
None of these
Centrifugal type
Axial flow type

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Compressors, Gas Turbines and Jet Engines
Atmospheric pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm. The air pressure will be

1.03 kg/cm²
1.00 kg/cm²
1.06 kg/cm²
0.53 kg/cm²

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Compressors, Gas Turbines and Jet Engines
Gas turbines for power generation are normally used

To supply base load requirements
To supply peak load requirements
To enable start thermal power plant
In emergency

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

2.5423611111111
0.084027777777778
0.37569444444444
0.16736111111111

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Compressors, Gas Turbines and Jet Engines
In a double acting compressor, the air is compressed

In a single cylinder on both sides of the piston
In one cylinder
In two cylinders
In two cylinders on both sides of the piston

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