Question

The _________pump converts rotational energy of the fluid to velocity and pressure.

(a) centrifugal

(b) jet

(c) airlift

(d) propeller pumps

This question was addressed to me in an online interview.

Query is from Fluid Flow Applications in section Fluid Flow Theory & Applications of Food Processing Unit Operations

Answer 1

Correct answer is (a) centrifugal

To elaborate: The centrifugal pumps convert rotational energy of the fluid to velocity and pressure. The fluid to be pumped is taken at the center of the rotor and is passed along the spinning rotor thus producing rotational energy. This rotational energy is then converted into velocity and pressure at the periphery of the disc.