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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
In which case the air-fuel ratio is likely to be maximum?

4-stroke petrol engine
Multi cylinder engine
Gas turbine
4-stroke diesel engine

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Compressors, Gas Turbines and Jet Engines
The net work input required for compressor with increase in clearance volume

Increases
Increases/decreases depending on compressor capacity
Decreases
Remains same

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Compressors, Gas Turbines and Jet Engines
The effective power of gas turbines is increased by adding the following in compressor

Nitrogen
Carbon dioxide
Ammonia and water vapour
Hydrogen

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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
Unsteady periodic and reversed flow
Air stream blocking the passage
Motion of air at sonic velocity

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Compressors, Gas Turbines and Jet Engines
A simple turbojet engine is basically

Gas turbine engine equipped with a propulsive nozzle and diffuse
A propeller system
Ramjet engine
Chemical rocket engine

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Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the compressed air main line should

Drop gradually towards the point of use
Be laid vertically
Be laid exactly horizontally
Rise gradually towards the point of use

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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