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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Volumetric efficiency of a compressor decreases with ________ in compression ratio.

Does not change
Remain same
Decrease
Increase

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Compressors, Gas Turbines and Jet Engines
Diffuser in a compressor is used to

Increase velocity
Make the flow streamline
Convert kinetic energy into pressure energy
Convert pressure energy into kinetic energy

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Compressors, Gas Turbines and Jet Engines
In jet engines the products of combustion after passing through the gas turbine are discharged into

Vacuum
Back to the compressor
Discharge nozzle
Atmosphere

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Compressors, Gas Turbines and Jet Engines
A centrifugal compressor works on the principle of

Centripetal action
Conversion of kinetic energy into pressure energy
Conversion of pressure energy into kinetic energy
Generating pressure directly

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Compressors, Gas Turbines and Jet Engines
A gas turbine used in air craft should have

Low weight and small frontal area
Small frontal area and high h.p.
High h.p. and low weight
High speed and high h.p.

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Compressors, Gas Turbines and Jet Engines
In a reciprocating air compressor, the compression work per kg of air

Is independent of clearance volume
Increases as clearance volume increases
Decreases as clearance volume increases
Increases as clearance volume decreases

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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