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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The ratio of work-done per cycle to the stroke volume of the compressor is known as

Compressor efficiency
Mean effective pressure
Compression ratio
Compressor capacity

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Compressors, Gas Turbines and Jet Engines
Out of the following, from where you will prefer to take intake for air compressor

From an air conditioned room maintained at 20°C
From outside atmosphere at 1°C
From coal yard side
From a side where cooling tower is located nearby

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

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

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Compressors, Gas Turbines and Jet Engines
Which of the following plants is smallest and lightest for generating a given amount of power?

Petrol engine
Solar plant
Gas turbine plant
Diesel engine

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Compressors, Gas Turbines and Jet Engines
The material commonly used for air craft gas turbine is

Duralumin
Timken, Haste alloys
High alloy steel
Stainless steel

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Compressors, Gas Turbines and Jet Engines
The pressure and temperature conditions of air at the suction of compressor are

Slightly more than atmospheric
Slightly less than atmospheric
Pressure slightly less than atmospheric and temperature slightly more than atmospheric
Atmospheric

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