Compressors, Gas Turbines and Jet Engines
Which is false statement about multistage compression?

It is best suited for compression ratios around 7:1
Power consumption per unit of air delivered is low
Volumetric efficiency is high
The moisture in air is condensed in the inter-cooler

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Compressors, Gas Turbines and Jet Engines
The overall efficiency of the compressed air system is the

Ratio of shaft input to the compressor to the shaft output of air motor
Product of shaft output of air motor and shaft input to the compressor
None of these
Ratio of shaft output of the air motor to the shaft input to the compressor

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