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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
A closed cycle gas turbine works on

Carnot cycle
Ericsson cycle
Joule cycle
Rankine cycle

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Compressors, Gas Turbines and Jet Engines
Pressure ratio in gas turbines is the ratio of

Highest pressure to exhaust pressure
Inlet pressure to exhaust pressure
Pressures across the turbine
Compressor pressure ratio

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Compressors, Gas Turbines and Jet Engines
A machine used to raise the pressure of air is called

Gas turbine
Air motor
I.C engine
Compressor

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Compressors, Gas Turbines and Jet Engines
Rotary compressors are suitable for

Large discharge at high pressure
Low discharge at high pressure
Large discharge at low pressure
Low discharge at low pressure

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Compressors, Gas Turbines and Jet Engines
The volumetric efficiency for reciprocating air compressors is about

70 to 90%
10 to 40%
40 to 60%
60 to 70%

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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.

Double
Equal to
Six times
Three times

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