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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
Actual compression curve is

Better than isothermal and adiabatic
Same as isothermal
In between isothermal and adiabatic
Same as adiabatic

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Compressors, Gas Turbines and Jet Engines
Standard air is the air at ___ and relative humidity of 36 percent.

0.1 bar and 40°C
0.1 bar and 20°C
1 bar and 40°C
1 bar and 20°C

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

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

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Compressors, Gas Turbines and Jet Engines
Air-fuel ratio in a jet engine will be of the order of

0.62569444444444
0.41736111111111
0.83402777777778
2.5006944444444

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Compressors, Gas Turbines and Jet Engines
Ratio of indicated h.p. to shaft h.p. in known as

Mechanical efficiency
Compressor efficiency
Volumetric efficiency
Isothermal efficiency

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Compressors, Gas Turbines and Jet Engines
When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades are said to be

Radial
None of the listed here
Forward curved
Backward curved

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