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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
1 m of air at atmospheric condition weighs approximately

1.3 kg
1.0 kg
2.2 kg
0.5 kg

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

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

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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
A compressor mostly used for supercharging of I.C. engines is

Roots blower
Radial flow compressor
Axial flow compressor
Reciprocating compressor

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

Adiabatically
Isochronically
Isentropically
Isothermally

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Compressors, Gas Turbines and Jet Engines
The maximum delivery pressure in a rotary air compressor is

30 bar
50 bar
10 bar
20 bar

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