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Compressors, Gas Turbines and Jet Engines

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

Variable speed
Constant speed unloader
Relief valve
Start-stop motor

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Compressors, Gas Turbines and Jet Engines
In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of

Oxygen alone
Atmospheric air
Compressed air
Vacuum

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Compressors, Gas Turbines and Jet Engines
Isothermal compression though most efficient, but is not practicable because

Compressor has to run at very slow speed to achieve it
It does not increase pressure much
It requires very big cylinder
It is impossible in practice

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Compressors, Gas Turbines and Jet Engines
Turbofan engine employs

One air stream
Two or more air streams
Solid fuel firing
No air stream

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Compressors, Gas Turbines and Jet Engines
The degree of reaction is usually kept ________ for all types of axial flow compressors.

0.2
0.3
0.5
0.4

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Compressors, Gas Turbines and Jet Engines
In a double acting compressor, the air is compressed

In two cylinders
In two cylinders on both sides of the piston
In a single cylinder on both sides of the piston
In one cylinder

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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