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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

Less
Same
More
May be less or more depending upon speed

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

These act as reservoir to take care of sudden demands
These increase compressor efficiency
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

Propellers
Turbojet engine
Rockets
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

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

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

Diesel engine
Petrol engine
C. electric motor
Compressed air

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