Welcome to the Water Treatment Operator Practice Test.
Choose the best possible answer to the question.
1.
The Surface Water Treatment Rule states that multibarrier treatment must result in the inactivation of Giardia cysts and viruses by?
2.
What chemical can be created by certain bacterial organisms and accelerate the corrosion process?
3.
What will increase alkalinity, pH, and hardness?
4.
A grout seal should be?
5.
What is the maximum feed rate when adding fluoride to drinking water?
6.
The fusible metal plugs on chlorine containers are designed to melt at what temperatures?
7.
When responding to a chlorine gas leak, the responder should have a SCBA and a?
8.
Every 1.0 mg/L of alum consumes what amount of alkalinity during the formation of floc particles?
9.
Past the breakpoint chlorination point, what percentage of the total chlorine residual should be free chlorine?
10.
When must a water system collect annual samples if the water system has been determined to be reliable by the State and consistently below the MCL level for organic compounds?
11.
What national law regulates underground disposal of wastes in deep wells?
12.
What chemical is slacked lime?
13.
Water hardness is measured in equivalent amounts of?
14.
What is a universal solvent?
15.
Regulations require that wastes from water treatment be monitored?
16.
What range of temperatures will fusible plugs on chlorine cylinders melt?
17.
An organic particle that is stabilized by attracting a layer of water molecules to its surface is known as a?
18.
The cl2 residual in water may be determined by using the reagent?
19.
The factors that effect coagulation and flocculation with alum are
20.
What should the turbidity of settled water be before it is applied to the filters, post sedimentation process?
22.
The chemical combination for substances in solution so as to cause separation in the insoluble form can be described as?
23.
How often should the solids concentration be determined in solid contact basins with fairly constant water quality parameters?
24.
What is the sample size for lead and copper analysis?
25.
What oxidant should be fed as early as possible in the treatment process to allow for complete reaction before it enters the distribution system?
