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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The ratio of the discharge pressure to the inlet pressure of air is called

Compression ratio
Compressor efficiency
Volumetric efficiency
Expansion ratio

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Compressors, Gas Turbines and Jet Engines
The gas in cooling chamber of a closed cycle gas turbine is cooled at

None of the listed here
Constant temperature
Constant volume
Constant pressure

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Compressors, Gas Turbines and Jet Engines
For speed above 3000 km/hour, it is more advantageous to use

Ramjet engine
Rockets
Turbojet engine
Propellers

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Compressors, Gas Turbines and Jet Engines
In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to

N.T.P. conditions
20°C and 1 kg/cm²
Intake temperature and pressure conditions
0°C and 1 kg/cm²

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

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

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Compressors, Gas Turbines and Jet Engines
The volume of air sucked by the compressor during its suction stroke is called

Free air delivery
Compressor capacity
None of these
Swept volume

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