indicated power

brake power

frictional power

none of these

work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio

isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor

volume of free air delivery per stroke to the swept volume of the piston

isentropic power to the power required to drive the compressor

equal to

double

three times

six times

Right

Wrong

1 to 5 bar

5 to 8 bar

8 to 10 bar

10 to 15 bar