Losses in a centrifugal compressor are due to__________________?
A. inlet losses
B. impeller channel losses
C. diffuser losses
D. all of the above
E. none of the above
A. inlet losses
B. impeller channel losses
C. diffuser losses
D. all of the above
E. none of the above
A. turbo-jet engine
B. ram-jet engine
C. propellers
D. rockets
E. hydraulic jet propulsion
A. 3 m3/mt
B. 1.5 m3/mt
C. 18 m3/mt
D. 6 m3/mt
E. 0.75 m3/mt
A. 1 : 1.2
B. 1 : 2
C. 1 : 5
D. 1 : 10
E. 1 : 1
A. isothermal
B. adiabatic
C. polytropic
D. any one of the above
E. none of the above
A. increases
B. decreases
C. remains unaffected
D. may increase or decrease depending on compressor capacity
E. increases upto certain limit and then decreases
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