With respect to centrifugal pump impellers, which of the following descriptions represents

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 _____.

Centrifugal pumps, however, can be designed with a number of impellers _____ to attain a large amount of liquid.

Centrifugal pumps can be designed with a number of impellers _____ to attain a high final

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