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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called

Pressure coefficient
Pressure ratio
Slip factor
Degree of reaction

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Compressors, Gas Turbines and Jet Engines
Propulsive efficiency is defined as ratio of

Engine output and propulsive power
Propulsive power and fuel input
Thrust power and fuel energy
Thrust power and propulsive power

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Compressors, Gas Turbines and Jet Engines
The thrust of a jet propulsion power unit can be increased by

Injecting water into the compressor
Burning fuel after gas turbine
All of these
Injecting ammonia into the combustion chamber

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Compressors, Gas Turbines and Jet Engines
Mechanical efficiency of gas turbines as compared to I.C engines is

Lower
Same
None of these
Higher

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Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the compressed air main line should

Drop gradually towards the point of use
Rise gradually towards the point of use
Be laid exactly horizontally
Be laid vertically

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Compressors, Gas Turbines and Jet Engines
Reciprocating air compressor is best suited for

Large quantity of air at high pressure
Small quantity of air at low pressure
Large quantity of air at low pressure
Small quantity of air at high pressure

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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