Explain to me how a basic water pump works.
Another simple, yet complicated question that may be posed to you during your interview is asking you to demonstrate how a water pump works. This is yet another test to ensure you have the basic knowledge required for this role as a water treatment operator.
"In my experience working with water pumps, they can be best summed up as using basic forces of nature to move a liquid. As the moving pump part begins to move, air is pushed out of the way. The movement of air creates a low-pressure vacuum which can be filled up by more air, or in the case of water pumps, water. There are several designs into how a water pump can function, with some built to move small scales of water and others designed to pump very high volumes."
Be sure to answer this in an easy-to-understand way and explain the basic functions of a water pump system. The more simply you can answer how a basic water pump works, the more confident you will sound. If you need to, be sure to research the basics of water pump principles and come to your interview ready to explain how air is used as a vacuum to move water through a system.
