Water Treatment Operator Level 2 Practice Exam
Study online at https://quizlet.com/_ghx22e
1. The main application of potas- Control odor and taste.
sium permanganate as an ox-
idant in water treatment is to
_____.
2. How does an inclined plate set- Requires a smaller footprint than a conventional clarifier.
tler differ from a conventional
clarifier?
3. In water treatment systems Calcium carbonate precipitates and coats surfaces.
what operational event occurs
when lime slurries contact sur-
faces?
4. What percentage of avail- 65-70%.
able chlorine does calcium
hypochlorite contain for disin-
fection?
5. What do flocculation and coag- Mechanical and chemical processes.
ulation involve in water treat-
ment?
6. What benefit does a bacterial Prevents calcium carbonate deposition.
slime layer provide on pipe sur-
faces?
7. What causes air binding in wa- Air pressure greater than atmospheric pressure.
ter treatment filters?
8. What are the two categories of Uniform and localized corrosion.
corrosion in water systems?
, Water Treatment Operator Level 2 Practice Exam
Study online at https://quizlet.com/_ghx22e
9. What factors determine the Precipitate solubility.
optimal pH for oxidizing iron
and manganese in water treat-
ment?
10. How does inadequate floccu- Decreases floc formation.
lation time impact floc forma-
tion?
11. What compound precipitates Magnesium hydroxide.
when excess lime softening re-
moves magnesium ions?
12. What effect does preoxida- Improves filtration, flocculation, and sedimentation.
tion have on water treatment
processes?
13. When water is stabilized with CaSO₄.
sulfuric acid, what noncarbon-
ate hardness chemical is creat-
ed?
14. At what CO₂ levels does iron re- 5-10 mg/L.
moval become more difficult?
15. What is the difference between True color is after turbidity removal, apparent color is due to
true and apparent color in wa- suspended matter.
ter quality measurement?
16. Why is monomedium filter me- To compensate for coarser media texture.
dia deeper than conventional
media in water treatment?
17. Imparts an unpleasant taste
Study online at https://quizlet.com/_ghx22e
1. The main application of potas- Control odor and taste.
sium permanganate as an ox-
idant in water treatment is to
_____.
2. How does an inclined plate set- Requires a smaller footprint than a conventional clarifier.
tler differ from a conventional
clarifier?
3. In water treatment systems Calcium carbonate precipitates and coats surfaces.
what operational event occurs
when lime slurries contact sur-
faces?
4. What percentage of avail- 65-70%.
able chlorine does calcium
hypochlorite contain for disin-
fection?
5. What do flocculation and coag- Mechanical and chemical processes.
ulation involve in water treat-
ment?
6. What benefit does a bacterial Prevents calcium carbonate deposition.
slime layer provide on pipe sur-
faces?
7. What causes air binding in wa- Air pressure greater than atmospheric pressure.
ter treatment filters?
8. What are the two categories of Uniform and localized corrosion.
corrosion in water systems?
, Water Treatment Operator Level 2 Practice Exam
Study online at https://quizlet.com/_ghx22e
9. What factors determine the Precipitate solubility.
optimal pH for oxidizing iron
and manganese in water treat-
ment?
10. How does inadequate floccu- Decreases floc formation.
lation time impact floc forma-
tion?
11. What compound precipitates Magnesium hydroxide.
when excess lime softening re-
moves magnesium ions?
12. What effect does preoxida- Improves filtration, flocculation, and sedimentation.
tion have on water treatment
processes?
13. When water is stabilized with CaSO₄.
sulfuric acid, what noncarbon-
ate hardness chemical is creat-
ed?
14. At what CO₂ levels does iron re- 5-10 mg/L.
moval become more difficult?
15. What is the difference between True color is after turbidity removal, apparent color is due to
true and apparent color in wa- suspended matter.
ter quality measurement?
16. Why is monomedium filter me- To compensate for coarser media texture.
dia deeper than conventional
media in water treatment?
17. Imparts an unpleasant taste
