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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The thrust on the rotor in a centrifugal compressor is produced by

Tangential component
Radial component
None of these
Axial component

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Compressors, Gas Turbines and Jet Engines
The effective power of gas turbines is increased by adding the following in compressor

Hydrogen
Ammonia and water vapour
Nitrogen
Carbon dioxide

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

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

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Compressors, Gas Turbines and Jet Engines
Standard air is the air at ___ and relative humidity of 36 percent.

0.1 bar and 40°C
0.1 bar and 20°C
1 bar and 20°C
1 bar and 40°C

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Compressors, Gas Turbines and Jet Engines
A compressor at high altitude will draw

More power
Less power
More/less power depending on other factors
Same power

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Compressors, Gas Turbines and Jet Engines
The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is

Pressure drop across the valves
Clearance volume and leakages
Superheating in compressor
All of these

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