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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
It is not possible to use closed gas turbine cycle in aeronautical engines because

It is inefficient
It is bulky
None of these
It requires cooling water for its operation

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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%
70 to 90%
10 to 40%

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Compressors, Gas Turbines and Jet Engines
The type of rotary compressor used in aeroplanes, is of

Radial flow type
None of these
Centrifugal type
Axial flow type

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

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

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Compressors, Gas Turbines and Jet Engines
For slow speed large capacity compressor, following type of valve will be best suited

Mechanical valve of the Corliss, sleeve, rotary or semi rotary type
Poppet valve
Any of the above
Disc or feather type

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Compressors, Gas Turbines and Jet Engines
During peak load periods, the best method of controlling compressors is

Constant speed unloader
Variable speed
Relief valve
Start-stop motor

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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