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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
An air compressor may be controlled by

Clearance control
Any one of the above
Throttle control
Blow off control

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Compressors, Gas Turbines and Jet Engines
In air breathing jet engine, the jet is formed by expanding

Liquid
Plasma
Highly heated atmospheric air
Solids

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Compressors, Gas Turbines and Jet Engines
The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram is

More/less depending on compressor capacity
Same
More
Less

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Compressors, Gas Turbines and Jet Engines
The thrust on the rotor in a centrifugal compressor is produced by

Tangential component
None of these
Axial component
Radial component

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Compressors, Gas Turbines and Jet Engines
The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl.

Reduced
None of these
Zero
Increased

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Compressors, Gas Turbines and Jet Engines
The volumetric efficiency for reciprocating air compressors is about

60 to 70%
40 to 60%
10 to 40%
70 to 90%

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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