How to Study for Water Treatment License Exams – Part 5 of 10

How to Study for Water Treatment License Exams – Part 5 of 10

Last time we talked about the importance of learning water math if you want to pass your test the first time.  The most important and foundational issue a water operator needs to understand when it comes to math is how to convert the different units that show up on the job and on the exam.

 Water Math Unit Conversions

Knowing how to perform unit conversions is a necessary tool to have in your toolbox as you work through certification exam math problems. You might be asked to figure out how many gallons per minute is 2.345 MGD … or how many MGD is 2.45 CFS. Knowing what these abbreviations stand for and how to convert between the different types of units is a must on most certification exams.

If you can’t do it, you’ll miss out on valuable points which could lead to failure. However, if you have a firm grasp on how to use unit conversions to solve math problems, you’re well on your way to success!

I believe it is so important that you understand how to properly perform unit conversions, that the first lesson of all American Water College exam prep courses is titled Unit Conversions.

If you have struggled with this subject in the past, don’t worry. American Water College has an easy to follow method that simplifies the unit conversion process. Once you know the secret (and you will know the secret once you have finished the math portion of the exam prep course), you’ll wonder why it seemed so difficult before.


  • The math questions can be the easiest points to get on and exam if you’ll take the time to work through multiple math problems and gain an understanding of how to solve them.
  • Many states administer tests to favor those who understand how to do the math
  • If you are lost on the math, get help HERE