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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
What will be the volume of air at 327°C if its volume at 27°C is 1.5 m³/ mt?

3 m³/ mt.
18 m³/ mt.
1.5 m³/ mt.
6 m³/ mt.

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Compressors, Gas Turbines and Jet Engines
In air breathing jet engine, the jet is formed by expanding

Highly heated atmospheric air
Plasma
Liquid
Solids

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Compressors, Gas Turbines and Jet Engines
During base load operation, the best method of controlling compressor is

Constant speed unloader
Variable speed
Start-stop motor
Relief valve

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Compressors, Gas Turbines and Jet Engines
The inlet pressure is always ___ the discharge pressure.

Less than
None of the listed here
Equal to
More than

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Compressors, Gas Turbines and Jet Engines
There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would

Increase
None of these
Remain same
Decrease

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Compressors, Gas Turbines and Jet Engines
An air compressor may be controlled by

Any one of the above
Blow off control
Throttle control
Clearance control

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