Exam Study Guide: Activated Sludge Process Variables; and Distribution System Piping

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.

Exam Study Guide: Activated Sludge Process Variables; and Distribution System Piping

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 The Settleable Solids Test; and Confined Spaces. This time you can test your knowledge about activated sludge process variables, and distribution system piping.

Wastewater Treatment Sample Question

Typically, activated sludge processes maintain their operating parameters. What two variables impact the performance process and must be monitored?

A. Temperature and Humidity
B. Upstream and Downstream processes
C. Federal guidelines and State regulations
D. Time and Operating capability

Water Treatment Sample Question

Replacing old piping in the distribution system with new 140+ C Factor piping will:

A. Create more friction loss and more of a laminar flow.
B. Create less friction loss and more of a turbulent flow.
C. Create less friction loss and more of a laminar flow.
D. Create more friction loss and less of a turbulent flow.

To see the answers to both the above questions, click this link.


About the authors: Rick Lallish is the Water Pollution Control program director at the Environmental Resources Training Center (ERTC) of Southern Illinois University Edwardsville. He provides training for entry-level operators in the wastewater field and operators throughout the state looking to further their education. Lallish was also named the 2017 Illinois Operator of the Year and 2018 president of the Illinois Association of Water Pollution Control Operators.

Drew Hoelscher is the program director of drinking water operations at the Environmental Resources Training Center in Edwardsville, Illinois.



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