Welcome to the Water Treatment Operator Practice Test.
Choose the best possible answer to the question.
1.
What forms when you add Alum to turbid water?
2.
What should be determined first before an in ground sedimentation tank is drained?
3.
What color will the water sample change when using amperometric titrator to check the chlorine residual?
4.
The proper emergency kit for a chlorine tanker is?
5.
Ion exchange processes can typically be used for direct groundwater treatment as long as turbidity and what else have levels that are not excessive?
6.
How often should the solids concentration be determined in solid contact basins with fairly constant water quality parameters?
7.
What agency should be called for actual hands on assistance if a substantial chlorine leak incident occurs?
8.
Salts, Bases, and Acids lacking carbon are organic compounds.
9.
Most totalizer meters at treatment plants are commonly
10.
Impurities found in water that do not come from plants or animals are
11.
After a backwash, to avoid turbidity spikes at the start of a service run, filters should be equipped with?
12.
What conditions in a gravity filter will be produced when there is a larger particle size and less dense anthracite media?
13.
For alum coagulation of color, what is the correct pH?
14.
Which natural electrical force keeps colloidal particles apart in water treatment?
15.
The water purveyor must post the Consumer Confidence Report on a publicly accessible web site if it serves more than how many people?
16.
During daylight hours, algae growth in a reservoir will do what?
17.
When 0.3 mg/L chlorine is added to water, the residual will increase by 0.3 mg/L.
18.
What type of filtration is permitted under the Surface Water Treatment Rule?
19.
A pro of chloramines is?
20.
A property that is important to water treatment that is physical as opposed to chemical is?
21.
Manganese is rarely found in surface waters above a concentration of?
22.
What does a high pH favor the formation of?
23.
Shellfish grown in polluted waters have been known to contain the organism that causes infectious hepatitis.
24.
The maximum amount of time that between draining, cleaning, and inspection of sedimentation basins with mechanical sludge removal components is?
25.
The hour during the day when the largest volume of water is being pumped is known as peak hourly flow?
