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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Gas turbine as compared to internal combustion engine

Has more efficiency
Can be driven at a very high speed
All of the listed here
Produces uniform torque

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Compressors, Gas Turbines and Jet Engines
Aeroplanes employ following type of compressor

Radial flow
Axial flow
Centrifugal
None of these

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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.

Equal to
Three times
Double
Six times

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Compressors, Gas Turbines and Jet Engines
When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.

Less than
More than
None of these
Equal to

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Compressors, Gas Turbines and Jet Engines
Inter-cooling in multistage compressors is done

To enable compression in two stages
To minimize the work of compression
To cool the air at delivery
To cool the air during compression

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Compressors, Gas Turbines and Jet Engines
The work-done on a compressor will be minimum if air is taken from

A source of low temperature air
A source of high temperature air
A source at 0° C
The atmosphere

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