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

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

ANSWER DOWNLOAD EXAMIANS APP

Compressors, Gas Turbines and Jet Engines
Clearance volume in actual reciprocating compressors is essential

To provide cushioning effect and also to avoid mechanical bang of piston with cylinder head
To provide cushioning effect
To accommodate Valves in the cylinder head
To attain high volumetric efficiency

ANSWER DOWNLOAD EXAMIANS APP