Exam Study Guide: Types of Blowers and Evaluating Water Quality

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: Types of Blowers and Evaluating Water Quality

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 Belt Filter Press Alignment and Hardness Concentration Conversions. This time you can test your knowledge about types of blowers, and evaluating water quality.

Wastewater Treatment Sample Question

Which type of blower may NOT be operated against a closed valve?

A. Centrifugal
B. Positive displacement
C. High-speed-driven (turbo) 
D. Open-impeller single stage 

Water Treatment Sample Question

2-methylisoborneol:

A. will cause a water to smell like chlorine.
B. will cause a water to develop a strong metallic taste. 
C. is regulated by the United States National Primary Drinking Water Regulations
D. will cause a water to develop an earthy-musty odor

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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