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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Isothermal compression efficiency, even when running at high speed, can be approached by using

Cold water spray
Multistage compression
Both (A) and (B) above
Fully insulating the cylinder

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Compressors, Gas Turbines and Jet Engines
The weight per horse power ratio for gas in Turbine as compared to I.C. engine and steam turbine is

None of these
Higher
Same
Lower

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Compressors, Gas Turbines and Jet Engines
Aeroplanes employ following type of compressor

None of these
Axial flow
Centrifugal
Radial flow

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Compressors, Gas Turbines and Jet Engines
The maximum combustion pressure in gas turbine as compared to I.C. engine is

Same
Depends on other factors
Less
More

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Compressors, Gas Turbines and Jet Engines
The pressure and temperature conditions of air at the suction of compressor are

Pressure slightly less than atmospheric and temperature slightly more than atmospheric
Slightly less than atmospheric
Atmospheric
Slightly more than atmospheric

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Compressors, Gas Turbines and Jet Engines
Which is false statement about advantages of multistage compressor in comparison to single stage compressor?

Lower volumetric efficiency
Less power requirement
Less loss of air due to leakage past the cylinder
Better mechanical balance

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