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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Euler's equation can be used for

All of these
Radial flow compressors
Axial flow compressors
Pumps

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Compressors, Gas Turbines and Jet Engines
The air is delivered ________ in one revolution in case of a three lobbed rotor.

Two times
Three times
Four times
Six times

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

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

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

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Compressors, Gas Turbines and Jet Engines
The inter-cooler pressure, for minimum work required, for a two stage reciprocating air compressor, is given by (where p₁ = Intake pressure of air, p₂ = Inter-cooler pressure, and p₃ = Delivery pressure of air)

p₂ = p₁/p₃
p₂ = p₁ × p₃
p₂ = p₁ × p₂
p₂ = p₃/p₁

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Compressors, Gas Turbines and Jet Engines
The volume of air sucked by the compressor during its suction stroke is called

None of these
Compressor capacity
Free air delivery
Swept volume

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