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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
With the decrease in compression ratio, the volumetric efficiency

First decrease and then increase
Increases
Decreases
Does not change

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Compressors, Gas Turbines and Jet Engines
Gas turbine as compared to internal combustion engine

Can be driven at a very high speed
All of the listed here
Produces uniform torque
Has more efficiency

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Compressors, Gas Turbines and Jet Engines
In a double acting compressor, the air is compressed

In a single cylinder on both sides of the piston
In two cylinders on both sides of the piston
In one cylinder
In two cylinders

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Compressors, Gas Turbines and Jet Engines
Adiabatic compression is one in which

Temperature rise follows a linear relationship
Work done is maximum
Temperature during compression remains constant
No heat leaves or enters the compressor cylinder during compression

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Compressors, Gas Turbines and Jet Engines
Ram compression in turbojet involves

Compression of inlet air
Increasing speed of incoming air
Lost work
Reduction of speed of incoming air and conversion of part of it into pressure energy

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

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

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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