A reciprocating pump belongs to _____ according to its working principle.A.injector pumpsB

A gear pump belongs to _____ according to its working principle.

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

The amount of fluid delivered by a reciprocating pump can be regulated by _____.

If a bilge pump is able to develop vacuum, but is unable to sufficiently pump out the bilg

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

Before starting a reciprocating, steam-driven pump that has been idle for a period of time