Compressors, Gas Turbines and Jet Engines
Pick up the wrong statement about advantages of multistage compression

Mechanical balance is better
Air can be cooled perfectly in between
Better lubrication is possible advantages of multistage
More loss of air due to leakage past the cylinder

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Compressors, Gas Turbines and Jet Engines
The assumption made in two stage compression with inter-cooler is that

The suction and delivery of air takes place at constant pressure
The compression in both the cylinders is polytropic
All of the listed here
There is no pressure drop in the inter-cooler

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