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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in ________ of the piston.

Three strokes
Four strokes
One stroke
Two strokes

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Compressors, Gas Turbines and Jet Engines
The output of a gas turbine is 300 KW and its efficiency is 20 percent, the heat supplied is

150 KW
6000 KW
15 KW
600 KW

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Compressors, Gas Turbines and Jet Engines
Reheating in a gas turbine

Increases the turbine work
Decreases the thermal efficiency
Increases the compressor work
Increases the thermal efficiency

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Compressors, Gas Turbines and Jet Engines
The air is delivered ________ in one revolution in case of a three lobbed rotor.

Three times
Six times
Two times
Four times

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Compressors, Gas Turbines and Jet Engines
Water is injected in gas turbine cycle to

Control temperature
Control fire hazards
Control output of turbine
Increase efficiency

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Compressors, Gas Turbines and Jet Engines
Compression efficiency is compared against

Adiabatic compression
Isothermal compression
Isentropic compression
Ideal compression

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