Question

what is priming? why is it necessary?​

Answer 1

Answer:

Priming of a centrifugal pump is defined as the operation in which the suction pipe, casing of the pump and a portion of the delivery pipe upto the delivery valve is completely filled up from outside source with the liquid to be raised by the pump before starting the pump. ... To avoid this difficulty priming is necessary.

Answer 2

Answer:

Priming of a centrifugal pump is defined as the operation in which the suction pipe, casing of the pump and a portion of the delivery pipe upto the delivery valve is completely filled up from outside source with the liquid to be raised by the pump before starting the pump. ... To avoid this difficulty priming is necessary.