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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The capacity of compressor will be highest when its intake temperature is

Atmospheric
Anything
Lowest
Highest

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Compressors, Gas Turbines and Jet Engines
The performance of air compressor at high altitudes will be ________ as compared to that at sea level.

Higher
None of these
Same
Lower

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Compressors, Gas Turbines and Jet Engines
Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is

Can't be compared
Lower
Higher
Equal

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Compressors, Gas Turbines and Jet Engines
For speed above 3000 km/hour, it is more advantageous to use

Propellers
Ramjet engine
Rockets
Turbojet engine

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Compressors, Gas Turbines and Jet Engines
The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio

First increases and then decreases
Decreases
Increases
First decreases and then increases

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Compressors, Gas Turbines and Jet Engines
Mining industry usually employs following motive power

Compressed air
Petrol engine
C. electric motor
Diesel engine

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