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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
In which case the air-fuel ratio is likely to be maximum?

4-stroke petrol engine
Gas turbine
4-stroke diesel engine
Multi cylinder engine

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

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

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Compressors, Gas Turbines and Jet Engines
Reheating in a multistage expansion gas turbine ________ compressor work.

None of these
Increases
Has no effect on
Decreases

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Compressors, Gas Turbines and Jet Engines
The advantage of multistage compression over single stage compression is

All of these
Higher volumetric efficiency
Decreased discharge temperature
Lower power consumption per unit of air delivered

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Compressors, Gas Turbines and Jet Engines
The thrust on the rotor in a centrifugal compressor is produced by

None of these
Tangential component
Axial component
Radial component

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Compressors, Gas Turbines and Jet Engines
Mining industry usually employs following motive power

Compressed air
Petrol engine
C. electric motor
Diesel engine

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