Erosion and pits formation on the impeller of a centrifugal pump may
be due to
(A) Cavitation
(B) Low speed of impeller
(C) Its operation with delivery valve closed for considerable time after
starting the pump
(D) Off centering of pump with motor
be due to
(A) Cavitation
(B) Low speed of impeller
(C) Its operation with delivery valve closed for considerable time after
starting the pump
(D) Off centering of pump with motor