Compressors, Gas Turbines and Jet Engines
Which is false statement about advantages of multistage compressor in comparison to single stage compressor?

Lower volumetric efficiency
Less loss of air due to leakage past the cylinder
Better mechanical balance
Less power requirement

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Compressors, Gas Turbines and Jet Engines
The overall isothermal efficiency of compressor is defined as the ratio of

Isothermal h.p. to adiabatic h.p.
Power to drive compressor to isothermal h.p.
Isothermal h.p. to the BHP of motor
Work to compress air isothermally to work for actual compression

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