Welcome to the Water Treatment Operator Practice Test.
Choose the best possible answer to the question.
1.
Current regulations require that water treatment wastes be monitored?
2.
An increase in filter media head loss could be an indicator of?
3.
Water that is softened has a high pH and a high concentration of CaCO3. Therefore stabilization is essential in order to prevent the CaCO3 from precipitating out on?
4.
When a permit is required to enter a confined space, who may sign the permit?
5.
What type of polar bonds are between the hydrogen atoms and the oxygen atom in water?
6.
When responding to a chlorine gas leak, the responder should have a SCBA and a?
7.
When entering a permitted confined space entry structure, always complete a permit and?
8.
Impurities found in water that do not come from plants or animals are
9.
The temperature range at which coliform bacteria samples must be stored before being delivered to a lab is?
10.
What device collects the settled water as it leaves the sedimentation basin?
11.
Wet activated carbon will remove what from the air? (In regards to safety)
12.
Anaerobic conditions in reservoirs can cause what problem?
13.
How often should the fluoride concentration be measured in treated water?
14.
The water purveyor must post the Consumer Confidence Report on a publicly accessible web site if it serves more than how many people?
15.
What conditions in a gravity filter will be produced when there is a larger particle size and less dense anthracite media?
16.
What type of polymers are sometimes formulated with regulated substances?
17.
Manganese is rarely found in surface waters above a concentration of?
18.
What is the most effective disinfection residual?
19.
Opening the discharge valve one full turn on a chlorine cylinder will?
20.
What TON will consumers start to notice?
21.
If there is debris found in the filter bed after backwashing a filter this can indicate?
22.
Waterborne diseases like typhoid and cholera are caused by?
23.
The acronym BAT stands for
24.
What are the precursors to THMs?
25.
The advantage of using oxidant ozone is that it?
