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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Reheating in a multistage expansion gas turbine ________ compressor work.

None of these
Decreases
Increases
Has no effect on

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Compressors, Gas Turbines and Jet Engines
Volumetric efficiency of a compressor decreases with ________ in compression ratio.

Decrease
Remain same
Increase
Does not change

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Compressors, Gas Turbines and Jet Engines
A compressor mostly used for supercharging of I.C. engines is

Roots blower
Reciprocating compressor
Axial flow compressor
Radial flow compressor

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Compressors, Gas Turbines and Jet Engines
Stalling of blades in axial flow compressor is the phenomenon of

Air stream blocking the passage
Unsteady periodic and reversed flow
Air stream not able to follow the blade contour
Motion of air at sonic velocity

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Compressors, Gas Turbines and Jet Engines
The capacity of compressor will be highest when its intake temperature is

Atmospheric
Highest
Anything
Lowest

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Compressors, Gas Turbines and Jet Engines
Out of the following, from where you will prefer to take intake for air compressor

From a side where cooling tower is located nearby
From coal yard side
From outside atmosphere at 1°C
From an air conditioned room maintained at 20°C

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