Exam Study Guide - April 2021

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

In fixed-film processes, what must be reduced before nitrification can occur?

A. Organic loading rate

B. Hydraulic loading rate

C. AOB and NOB bacteria

D. Endogenous respiration

Answer: A. Higher organic loading rates (OLR) favor the growth of...

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