A centrifugal pump produces the required pressure energy by means of a rotating _____ prov

The advantage of a centrifugal pump as compared with a reciprocating pump is that _____.

The function of a centrifugal pump double volute casing is to _____.

Increasing the speed of a centrifugal pump will result in an increase in its capacityAnoth

Air leakage between the shaft and stuffing box packing in a centrifugal pump is prevented

The gear pump belongs to the （) pump.A.positive displacementB.reciprocatingC.centrifugal

The discharge head of a centrifugal pump will vary directly with the _____.A.change in imp