Work Center Supervisor Practice Exam

What is the primary purpose of a centrifugal pump in fire apparatus?

To create a vacuum for drafting To move water using an impeller and volute To generate high pressure at low flow rates To maintain a constant discharge pressure regardless of engine RPM

Correct Answer:

To move water using an impeller and volute

Explanation:

Centrifugal pumps move water by imparting velocity to it with an impeller and then converting that velocity to pressure in a volute.

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