Exam Study Guide: Lift Station Location and Aqueous Solution Freezing Temp

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: Lift Station Location and Aqueous Solution Freezing Temp

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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 Electrical Current Imbalance and Chemical Reactions. This time you can test your knowledge about lift station location, and aqueous solution freezing temperature.

Wastewater Treatment Sample Question

What considerations should be made when locating a lift station in your collections system?

A. Size of influent and effluent piping and BOD loading
B. Ease of access, utility location and groundwater table 
C. Distance from public access, parks and schools
D. Soil cation capacity, location of nearest water lines, and industrial access

Water Treatment Sample Question

At what temperature will an aqueous solution of 50% by weight sodium hydroxide freeze? 

A. -12 degrees F
B. 0 degrees F
C. 32 degrees F
D. 58 degrees F

To see answers for both of 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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