Category: Compressors, Gas Turbines and Jet Engines

A. more power
B. less power
C. same power
D. more/less power depending on other factors
E. none of the above

A. isothermal
B. adiabatic
C. polytropic
D. any one of the above
E. none of the above

A. in two phases
B. in three phases
C. in a single phase
D. in the form of air and water mixture
E. gas and no air

A. the ratio of stroke volume to clearance volume
B. the ratio of the air actually delivered to the amount of piston displacement
C. reciprocal of compression ratio
D. index of compressor performance
E. proportional to compression ratio

A. larger air handling ability per unit frontal area
B. higher pressure ratio per stage
C. aerofoil blades are used
D. higher average velocities
E. none of the above

A. less
B. more
C. same
D. more/less depending on compressor capacity
E. unpredictable

A. compressor efficiency
B. isentropic efficiency
C. Euler’s efficiency
D. pressure coefficient
E. pressure ratio

A. one adiabatic, two isobaric, and one constant volume
B. two adiabatic and two isobaric
C. two adiabatic, one isobaric and one constant volume
D. one adiabatic, one isobaric and two constant volume
E. two isobaric, two adiabatic and one constant volume

A. more
B. less
C. same
D. depends on other factors
E. unpredictable

A. start-stop motor
B. constant speed unloader
C. relief valve
D. variable speed
E. none of the above