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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The ratio of work done per cycle to the swept volume in case of compressor is called

Compression index
Compression ratio
Compressor efficiency
Mean effective pressure

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Compressors, Gas Turbines and Jet Engines
For supplying intermittent small quantity of air at high pressure, following compressor is best suited

Centrifugal
Axial
Screw
Reciprocating

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

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

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Compressors, Gas Turbines and Jet Engines
The hottest point in a gas turbine is

at the tip
between ~ to i of the blade height
at the base
in the center

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Compressors, Gas Turbines and Jet Engines
The air entry velocity m a rocket as compared to aircraft is

Zero
Same
More
Less

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Compressors, Gas Turbines and Jet Engines
Maximum temperature in a gas turbine is of the order of

700°C
1500°C
1000°C
2000°C

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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