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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades are said to be

None of the listed here
Forward curved
Backward curved
Radial

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Compressors, Gas Turbines and Jet Engines
Reheating in multistage expansion gas turbine results in

High thermal efficiency
Maximum work output
Reduction in compressor work
Decrease of heat loss in exhaust

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Compressors, Gas Turbines and Jet Engines
For minimum work required to compress and deliver a quantity of air by multistage compression

The work-done in each stage should be same
All of the listed here
The intercooling should be perfect
The compression ratio in each stage should be same

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Compressors, Gas Turbines and Jet Engines
The minimum work required for a three stage reciprocating air compressor is ___ the work required for each stage.

Double
Six times
Three times
Equal to

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Compressors, Gas Turbines and Jet Engines
A centrifugal compressor works on the principle of

Centripetal action
Conversion of pressure energy into kinetic energy
Conversion of kinetic energy into pressure energy
Generating pressure directly

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Compressors, Gas Turbines and Jet Engines
The efficiency and work ratio of a gas turbine plant can be increased by

Adding heat exchanger
Injecting water in/around combustion chamber
All of these
Reheating the air after partial expansion in the turbine

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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