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COMPRESSORS, GAS TURBINES AND JET ENGINES

Compressors, Gas Turbines and Jet Engines
In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the delivery pressure at the fourth stage will be

16 bar
256 bar
64 bar
1 bar

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Compressors, Gas Turbines and Jet Engines
Rotary compressor is best suited for

Small quantity of air at low pressure
Small quantity of air at high pressure
Large quantity of air at low pressure
Large quantity of air at high pressure

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

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

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Compressors, Gas Turbines and Jet Engines
The air-fuel ratio in gas turbines is of the order of

7: 1
50: 1.
15: 1
30: 1

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Compressors, Gas Turbines and Jet Engines
Maximum temperature in a gas turbine is of the order of

1500°C
1000°C
2000°C
700°C

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