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COMPRESSORS, GAS TURBINES AND JET ENGINES

Compressors, Gas Turbines and Jet Engines
In turbo fan engine, the jet velocity as compared to turbojet engine is

More
May be less or more depending upon speed
Less
Same

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Compressors, Gas Turbines and Jet Engines
Which is false statement about air receivers?

These increase compressor efficiency
These act as reservoir to take care of sudden demands
These knock out some oil and moisture
These are used to dampen pulsations

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

Rockets
Turbojet engine
Propellers
Ramjet engine

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Compressors, Gas Turbines and Jet Engines
When air is to be compressed at a high pressure, then it is advantageous to use

Single stage compression
Multistage compression with intercooling
Multistage compression without intercooling
None of these

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

Compressed air
C. electric motor
Diesel engine
Petrol engine

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