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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
The most efficient method of compressing air is to compress it

Adiabatically
Isentropically
Isochronically
Isothermally

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

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

Swept volume
None of these
Compressor capacity
Free air delivery

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

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

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

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

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Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the branch connections from compressed air lines should be taken from

Right side of main
Top side of main
Bottom side of main
Left side of main

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MORE MCQ ON Compressors, Gas Turbines and Jet Engines

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