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Compressors, Gas Turbines and Jet Engines

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

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

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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

0.05
0.01
0.001
0.005

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Compressors, Gas Turbines and Jet Engines
The compressed air may be used

In starting and supercharging of I.C. engines
In gas turbine plants
For operating pneumatic drills
All of the listed here

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Compressors, Gas Turbines and Jet Engines
In a centrifugal compressor, an increase in speed at a given pressure ratio causes

Increase in flow
Increase in efficiency
Decrease in flow
Increase in flow and decrease in efficiency

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Compressors, Gas Turbines and Jet Engines
The advantage of multistage compression over single stage compression is

All of these
Decreased discharge temperature
Higher volumetric efficiency
Lower power consumption per unit of air delivered

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Compressors, Gas Turbines and Jet Engines
Euler's equation is applicable for

Centrifugal compressor
All of these
Axial compressor
Pumps

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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