EditorialExam Study Guide - July 2023

Exam Study Guide - July 2023

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.

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WASTEWATER

By Rick Lallish

Oxidation-reduction probes read changes in potential when dissolved oxygen is present and not present. ORP readings of -200 mV typically indicate what condition?

A. Anoxic conditions

B. Aerobic conditions

C. Anaerobic conditions

D. Fouled...

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