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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The inlet pressure is always ___ the discharge pressure.

None of the listed here
Equal to
More than
Less than

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

Control output of turbine
Increase efficiency
Control temperature
Control fire hazards

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Compressors, Gas Turbines and Jet Engines
A rocket engine uses __________ for the combustion of its fuel.

Compressed atmospheric air
Surrounding air
Its own oxygen
None of these

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Compressors, Gas Turbines and Jet Engines
The mass of gas turbine per kW developed is about ________ as that of an I.C. engine.

One-half
Same
One sixth
One fourth

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Compressors, Gas Turbines and Jet Engines
Standard air is the air at

Atmospheric conditions at any specific location
0°C and standard atmospheric conditions
20°C and 1 kg/cm² and relative humidity 36%
15°C and 1 kg/cm²

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Compressors, Gas Turbines and Jet Engines
The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is

Same
Low
High
Low/high depending on make and type

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