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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Pick up wrong statement. Surging phenomenon in centrifugal compressor depends on

Change in load
Mass flow rate
Stagnation pressure at the outlet
Pressure ratio

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Compressors, Gas Turbines and Jet Engines
A 3 m³/min compressor means that it

Delivers 3 m³/ min of compressed air
Compresses 3 m³/min of standard air
Compresses 3 m³/ min of free air
Delivers 3 m³/ min of compressed air at delivery pressure

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Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the branch connections from compressed air lines should be taken from

Left side of main
Top side of main
Bottom side of main
Right side of main

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Compressors, Gas Turbines and Jet Engines
The pressure ratio of an ideal vaned compressor with increase in mass flow rate

Remain constant
First decreases and then increases
Decreases
Increases

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Compressors, Gas Turbines and Jet Engines
The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade row to the

Total adiabatic temperature drop
Total temperature drop
Total temperature drop in the stage
Adiabatic temperature drop in the stage

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

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

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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