Exam Study Guide - September 2022

Licensing exams can be challenging. Our Exam Study Guide helps you prepare by presenting questions similar to those on an actual exam. You can find many more sample questions on the TPO website at www.tpomag.com/study.


By Rick Lallish

Which method to turn pumps on or off uses air pressure?

A. Mercury switch (mercroid style)

B. Bubble systems

C. Electrode systems

D. Float switch

Answer: B. Bubble systems used to be a very common method of turning pumps on or off in lift stations....

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