Welcome back to TPO magazine's Exam Study Guide Series, which offers a pair of water/wastewater study questions with in-depth explanations of the answers. Last time, we covered a set of wastewater and drinking water treatment questions on the topics of Bacteria in Anoxic Zones; and Naturally Occurring Ammonia. This time, you can test your knowledge about changing chlorine gas cylinders, and calculating chemical feed.
Wastewater Treatment Sample QuestionWhen changing a 150-pound chlorine gas cylinder, how many times may you reuse the lead washer?
A. As often as possibleB. Twice C. One timeD. Never
Answer: The answer to this question is D. Safety should be your prime concern when working around chlorine gas. It
Exam Study Guide: Changing Chlorine Cylinders; and Calculating Chemical Feed
Maintaining your education is important, especially in a career that demands licensing exams. Prove you’re an expert operator by answering these questions and others from our Exam Study Guide Series.
Nov 14, 2019
| by Rick Lallish and Drew Hoelscher |
