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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The criterion of the thermodynamic efficiency for rotary compressor is

None of the listed here
Polytropic compression
Isentropic compression
Isothermal compression

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Compressors, Gas Turbines and Jet Engines
If the flow of air through the compressor is parallel to its axis, then the compressor is

Centrifugal compressor
Reciprocating compressor
Axial flow compressor
Turbo compressor

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Compressors, Gas Turbines and Jet Engines
Which of the following fuels can be used in turbojet engines?

Methyl alcohol
High speed diesel oil
Liquid hydrogen
Kerosene

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Compressors, Gas Turbines and Jet Engines
For slow speed large capacity compressor, following type of valve will be best suited

Any of the above
Disc or feather type
Mechanical valve of the Corliss, sleeve, rotary or semi rotary type
Poppet valve

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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
15°C and 1 kg/cm²
20°C and 1 kg/cm² and relative humidity 36%

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Compressors, Gas Turbines and Jet Engines
The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade row to the

Total temperature drop in the stage
Total adiabatic temperature drop
Adiabatic temperature drop in the stage
Total temperature drop

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