3.12 pump design and operation

As the liquid travels through the volute casing of a centrifugal pump toward the discharge, its _______ energy is converted into pressure or potential energy.

As compared to a radical flow pump, the axial pump has a low suction lift and develops a relatively ______ discharge head, and has a ______ flow capacity

The screw pump

A/An ______ valve is a combination check valve and minimum flow valve in one unit.

Wearing rings are often made of _____ or cast iron since these materials tend to wear in a smooth manner.

The mixed flow pump has a single inlet impeller with the flow entering the pump in an axial direction and leaving the pump in direction between axial and _______

The external gear pump

The axial flow pump, often called a _____ pump, uses an impeller with vanes similar to a ships propeller

Multi-stage centrifugal pumps are equipped with two or more impellers operating in ______

It is imperative that the flow through a multistage pump be kept above a _______ flow rate