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Compressors, Gas Turbines and Jet Engines

Compressors, Gas Turbines and Jet Engines
During peak load periods, the best method of controlling compressors is

Start-stop motor
Constant speed unloader
Variable speed
Relief valve

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Compressors, Gas Turbines and Jet Engines
The capacity of compressor will be highest when its intake temperature is

Highest
Anything
Lowest
Atmospheric

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

0.5 kg
1.0 kg
1.3 kg
2.2 kg

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Compressors, Gas Turbines and Jet Engines
Isothermal compression though most efficient, but is not practicable because

It requires very big cylinder
Compressor has to run at very slow speed to achieve it
It does not increase pressure much
It is impossible in practice

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Compressors, Gas Turbines and Jet Engines
The compressor capacity with decrease in suction temperature

Increases
Remain unaffected
Decreases
May increase or decrease depending on compressor capacity

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Compressors, Gas Turbines and Jet Engines
The maximum compression ratio in an actual single stage axial flow compressor is of the order of

0.045138888888889
0.043055555555556
0.00070833333333333
0.048611111111111

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