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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
A gas turbine used in air craft should have

High h.p. and low weight
High speed and high h.p.
Small frontal area and high h.p.
Low weight and small frontal area

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Compressors, Gas Turbines and Jet Engines
A compressor at high altitude will draw

More/less power depending on other factors
Less power
Same power
More power

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Compressors, Gas Turbines and Jet Engines
Pick up the wrong statement about advantages of multistage compression

More loss of air due to leakage past the cylinder
Better lubrication is possible advantages of multistage
Air can be cooled perfectly in between
Mechanical balance is better

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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
4-stroke diesel engine
Gas turbine

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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

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

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Compressors, Gas Turbines and Jet Engines
Surging is the phenomenon of

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

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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