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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known as

Volumetric efficiency
Compressor efficiency
Mechanical efficiency
Isothermal efficiency

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Compressors, Gas Turbines and Jet Engines
A simple turbojet engine is basically

A propeller system
Chemical rocket engine
Gas turbine engine equipped with a propulsive nozzle and diffuse
Ramjet engine

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Compressors, Gas Turbines and Jet Engines
Only rocket engines can be propelled to space because

These engines can work on several fuels
They are not air breathing engines
They have high propulsion efficiency
They can generate very high thrust

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Compressors, Gas Turbines and Jet Engines
In gas turbines, high thermal efficiency is obtained in

Closed cycle & Open cycle
Closed cycle
Open cycle
Closed/open depending on other considerations

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Compressors, Gas Turbines and Jet Engines
Separators are generally used in air compressor installations

After the inter-cooler
Between the after-cooler and receiver
Before first stage suction
Before the inter-cooler

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Compressors, Gas Turbines and Jet Engines
The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio

Decreases
First increases and then decreases
Increases
First decreases and then increases

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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