Welcome to the Water Treatment Operator Practice Test.
Choose the best possible answer to the question.
1.
Acid rain is caused by
2.
Where is sludge pumped when it is removed from a clarifier or after a filter backwash?
3.
What advantage over Aluminum Sulfate does Ferric Sulfate have?
4.
What is the most important reason to reduce turbidity?
5.
What term describes the gathering of colloids into larger particles?
6.
What form is the protozoan Giardia Lamblia transmitted in?
7.
What is the depression around the well of the water surface caused by pumping water from a well?
8.
Which of the following are true. At the end of the coagulation, flocculation, and sedimentation process?
9.
When a permit is required to enter a confined space, who may sign the permit?
10.
A surface water treatment plant should have at least how many filtration beds?
11.
What type of water violation requires an all clear notification be given to the public?
12.
The fluoride injection point should be located after water has received complete treatment.
13.
The monitoring program that checks for Benzene (Leaking Underground Storage Tank) is checking for what kind of chemical contaminant?
14.
Most regulated contaminants in drinking water?
15.
What is put in place in a reservoir to create an even flow rate through the entire volume of a clearwell to provide a consistent amount of detention time and minimize short-circuiting?
16.
Which would be an indication that there is an issue with a part of the coagulation-flash mix-flocculation process operation?
17.
Radon is a radioactive decay daughter of radium 226.
18.
What should an operator do to compensate for temperature changes in a conventional water treatment plant with dual media filters that has very cold water in the winter and warm water in the summer?
19.
Turbidity particles will settle more quickly and uniformly in a sedimentation basin when there is?
20.
Under the Surface Water Treatment Rule a multiple barrier treatment consists of
21.
Which is the best removal method if a well contains soluble iron?
22.
In a conventional treatment plant, primary coagulant compounds added to water during the falsh-mix step are?
23.
What units ae the MCLs for radium-226, radium 228 and gross alpha particles radioactivity measured in?
24.
Low temperature water can be compensated for when using Alum by?
25.
What type of sedimentation basins have the flow of water admitted at an angle?
