Welcome to the Water Treatment Operator Practice Test.
Choose the best possible answer to the question.
1.
Dissolved-Air flotation is particularly good for?
2.
What will increase alkalinity, pH, and hardness?
3.
Under the Surface Water Treatment Rule a multiple barrier treatment consists of
4.
Which is a chemical used in water treatment as a coagulating chemical?
5.
How does Groundwater differ from Surface water sources?
6.
What is the minimum angle that self cleaning tube settlers must be placed?
7.
What conditions in a gravity filter will be produced when there is a larger particle size and less dense anthracite media?
8.
The most accurate chlorine residual measurement would be taken with?
9.
Turbidity in the drinking water system can not exceed?
10.
Which is the method for testing for total coliform bacteria?
11.
For maximum charge neutralization the average zeta potential should be in what range?
12.
In pounds, how much ammonia is contained in a 1 ton cylinder that is full?
13.
What chemical can be created by certain bacterial organisms and accelerate the corrosion process?
14.
Giardia Lamblia is transmitted?
15.
Why is it important to reduce turbidity?
16.
To unclog the head of a chemical feed pump an operator should first?
17.
A chlorine evaporator maintains a water bath at?
18.
What chemical can be added to the water system to sequester Iron and Manganese?
19.
What type of charge do the compounds that form when iron or aluminum salts react with water have?
20.
Microorganisms that require dissolved or free oxygen are?
21.
A constituent dissolved in source water that will precipitate when oxidized is?
22.
A common chemical added to boost alkalinity is?
23.
Which of the following are true. At the end of the coagulation, flocculation, and sedimentation process?
24.
What organism is associated with taste and odors?
