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Compressors, Gas Turbines and Jet Engines

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

Axial flow compressors
Radial flow compressors
Pumps
All of these

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Compressors, Gas Turbines and Jet Engines
In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the delivery pressure at the fourth stage will be

16 bar
1 bar
256 bar
64 bar

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Compressors, Gas Turbines and Jet Engines
Ramjet engine

Requires no air for its operation
Produces a jet consisting of plasma
Is not self operating at zero flight speed
Is self operating at zero flight speed

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

Radial flow
None of these
Centrifugal
Axial flow

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Compressors, Gas Turbines and Jet Engines
A closed gas turbine in which fuel is burnt directly in the air is not possible because of

High friction losses
Paucity of O2
High specific volume
Increasing gas temperature

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Compressors, Gas Turbines and Jet Engines
The volumetric efficiency of compressor with increase in compression ratio will

May increase or decrease depending on clearance volume
Remain same
Increase
Decrease

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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