practice problems
Water Distribution Math Questions
Solving water distribution math questions is a great way to prepare for your Operator Exam. Take a look at the following sample question, and try to solve it on your own. The answer is located at the bottom of this page. I included step-by-step solutions to help you understand how to solve this question
Water Distribution Study Guide
Here are 4 practice questions that will help you prepare for the exam. They were taken from a helpful Water Distribution Study Guide. On the Water Distribution Operator Certification Exam, you’ll be tested on similar types of questions. Therefore, you should be prepared to answer the following types of questions on test-day. Try
Test Questions for the Water Treatment Operator Certification Exam
Here are 4 practice questions for the Water Treatment Operator Certification Exam. I included the answers to these questions at the bottom of this page. Water Treatment Operator Certification Exam Which statement is true regarding the Interim Enhanced Surface Water Treatment Rule for conventional or direct filtration? Turbidity of the combined filter effluent must be
Grade 2 Wastewater Practice Exam – Wastewater Treatment Certification
Here are three questions from a Grade 2 Wastewater Practice Exam. They’re helpful if you’re trying to obtain your Wastewater Treatment Certification. I included the answers at the bottom of the page. Grade 2 Wastewater Practice Exam PRACTICE QUESTIONS Which of the following is equivalent to 1 mg/L? 1 ppb 10 parts per million 1
Water Treatment Math Practice Problems – Chemical Dosing Calculations
Here are 2 water treatment math practice problems. They’re questions on chemical dosing calculations for water treatment. As always, I included the solutions for the problems at the bottom of the page. I encourage you to solve them without looking at the solutions. If you have no idea how to solve them, carefully review the
Water Math Practice Problem – Chlorination
Here’s an important water math practice problem. First, try to solve it without looking at the answer. If you don’t know how to solve it, read the following step-by-step solutions carefully until you understand it. Moreover, you may want to enroll in this online water math course, if you need help. Above all, take your
Water Treatment Certification Practice Test
Here are a few questions from a Water Treatment Certification Practice Test. The answers are located at the bottom of this page. If you need more practice questions, click here. A filter must be backwashed when _____________________. Influent NTU decreases Influent pH changes Temperature increases Head loss across the filter increases and
Water Distribution Practice Test
If you’re looking for a Water Distribution Practice Test, you’re in the right place. Try to answer the following 5 practice questions. I placed the answers to these questions at the bottom of the page. Furthermore, I included explanations to help you understand the material. One of the best ways to study
Wastewater Practice Test – Questions and Answers
Are you looking for a Wastewater Practice Test? Here are three sample questions from a Wastewater Practice Test. These sample questions are helpful if you’re studying for the wastewater operator certification exam. The answers are located at the bottom of the page. Click here for Wastewater Practice Test 1. Which statement is true
Water Operator Certification Test – Sample Questions for Distribution and Treatment
Here are 4 sample questions for the Water Operator Certification Test. These questions are relevant for both Water Distribution and Water Treatment Operator Certification Exam. The answers are located below, near the end of the page. For more practice problems: Water Distribution Operator Certification Test – Practice Problems Water Treatment Operator Certification Test- Practice
Test Questions for Water Distribution Operator Certification Exam
4 Practice Problems for the Water Distribution Operator Certification Exam If you’re getting ready to take the Water Distribution Operator Certification Exam, check out the following video that covers 4 test questions. It’s a fairly short video, but it contains helpful information that can be used as a study guide. The practice problems covered in
Practice Problems: Wastewater Treatment Operator Exam
One of the best ways to prepare for any exam is to solve many practice problems. To help you study for your wastewater treatment operator certification exam, here are four practice problems. By the way, please keep in mind these problems are for anyone who is pursuing the first two certification levels. I included the
How to Calculate Sludge Volume Index – SVI
SLUDGE VOLUME INDEX – SVI Sludge Volume Index, also known as SVI, describes how well the sludge from the aeration tank settles and compacts. It’s a common test question on the operator exam, so be sure to absorb this information before your next test, and try these practice problems on your own. Sludge
How to Calculate Organic Loading into a Pond
First of all, organic Loading questions are very common on operator certification exams. The great thing is that these problems are not complicated. Today, we’ll focus on a certain type of problem: organic loading into a pond. Here’s a video that shows you how to calculate organic loading into a pond. It’s a fairly
How to Calculate Food-to-Microorganism Ratio (F-M)
In today’s post, we’re going to learn about food-to-microorganism ratio , also known as F-M ratio. It’s a common test question on the certification exam, so be sure to learn it. After you finish watching this video, try solving a similar F-M ratio math problem on your own. The practice exams
How to calculate detention time
In today’s post, we’ll learn how to calculate detention time. It’s a common question on the operator certification exam, so be sure to understand this concept. This applies to both water and wastewater treatment. For more help, enroll in our online courses or try these practice exams. So what is detention time? It’s
How to calculate flowrate
In today’s post, we’ll show you how to calculate flowrate through a pipe. It’s a fairly simple concept, and only involves one formula: Flowrate = (Velocity of water) x (Cross sectional area of pipe) In the following video, I demonstrate how to calculate flowrate in a pipe. If you’re looking for practice problems
How to study for your water treatment operator certification exam
The following paragraphs summarize my recommendation for studying for the exam. Take an online course First, take an online course offered by your favorite instructor, and get familiar with the content of Water Treatment Plant Operation, Volumes 1 and 2, which are published by Sacramento State University. The more you become familiar
Wastewater Math Practice Problem – Percent Removal Efficiency
In this article, we’ll solve a practice problem on percent removal efficiency . Simply put, it’s the amount of waste removed in percent format. For example, it can be used to calculate how much BOD was removed in the primary clarifier. Moreover, this concept can be applied to the removal of total suspended solids (TSS)
Wastewater Math Practice Problem – Weir Overflow Rate
To improve your math skills, let’s solve a wastewater math practice problem. In this post, we’ll learn how to calculate the weir overflow rate of a primary clarifier. The weir overflow rate is used to determine the potential for high velocities over the weir. Wastewater moving at a high velocity would cause more solids to
7 Strategies to Use on Test Day for Wastewater Math
Let’s face it. If math is your weakness, you’re going to cringe every time you think about the wastewater operator certification exam. It’s the last thing you want to think about, especially on the weekends. However, it’s important to start thinking about various aspects of the test before you walk into the exam center. In
Wastewater Math Practice Problem – Detention Time
In the following practice problem, we’ll learn how to calculate detention time. Simply put, it’s the amount of time the wastewater spends inside of a basin, such as a primary clarifier or a secondary clarifier. For example, if an influent spends three hours inside of a basin to get from the point of entry to
Wastewater Math Practice Problem – Food-to-Microorganism Ratio
Food-to-Microorganism is a way to manage the activated sludge process at a wastewater treatment plant. It’s a common concept that is tested on the wastewater treatment operator exam, so make sure that you understand it before you take your exam. In short, it calculates the ratio of organics (BOD or COD) to the amount of
How to Prepare for the Math Section of the Water and Wastewater Operator Exam
The best way to prepare for the math section of the water and wastewater operator exam is to solve as many practice problems as possible. Try to get your hands on many different books that contain relevant math problems, and solve them until you feel confident with your knowledge of the material. And when you’re