Water Treatment Operator Certification
Study online at https://quizlet.com/_hm643u
1. Which of the following is removed at the Fish and debris
raw water intake?
2. Which Of the following is more likely to be minerals
found in groundwater
3. What is most commonly used to control copper sulfate
algae growth in reservoirs
4. What are common filtration rates in gravity 2 to 10 GPM/sq.ft.
filtration
5. Leakage within a centrifugal pump is in- Cool moving parts
tended for what purpose?
6. Which of the following is the detention of a a single sample of water collected at a par-
grab sample ticular time which represents the compo-
sition of the water ONLY at that time and
place
7. Adding sodium hypochlorite to water will increase pH
have the following effect.
8. What is the purpose of the groundwater To protect the groundwater from dis-
rule ease-causing microorganisms
9. What is true about the total coliform rule Establishes an MCL based on the presence
and absence of total coliforms or E. coli.
10. What will happen to the water quality if Chlorine will react with carbon and natural-
chlorine is injected at the same location at ize the effects of both
power activated carbon
11. natural organic matter
, Water Treatment Operator Certification
Study online at https://quizlet.com/_hm643u
which of the following will react with chlo-
rine form trihalomethane
12. What type of pump has a piston within the Reciprocating
casing
13. What must be located near a hazardous Saftey data sheets (SDS)
chemical storage room
14. What term describes the depression of a cone of depression
water table
15. What is the radius of influence The radial distance from the center of a
well bore to the point where there is no
lowering of the water table
16. what is the best way to monitor filter per- turbidity
formance
17. What causes water to look cloudy suspended material
18. what chemical is sprayed near a chlorine ammonia
gas leak to produce white smoke
19. Which water sampling parameters must be pH and temperature
taken in the field?
20. If the total coliform tests positive, then Test for fecal coliform
what must be done next?
21. What is performed to evaluate susceptibil- Vulnerability assessment
ity to potential threats and identify correc-
tive action that can refuse or mitigate the
risk for a water system
, Water Treatment Operator Certification
Study online at https://quizlet.com/_hm643u
22. What is the definition of holding time for The length of time a water sample is re-
water samples tained between taking the sample and lab-
oratory analysis
23. From a bacteriological standpoint, what is Protect it from contaminated runoff
important for a well?
24. What is true of chlorine gas It is 2.5 times heavier than air
25. What happens after breakpoint chlorina- Chlorine dose and residual increase at the
tion is achieved same rate
26. If chlorine residual is not detected after 3 Demand has not been met
mg/L of dosage is applied, then what might
be occurring in the water?
27. Which of the following is an indicator or- Coliform
ganisms for pathogens
28. What would happen if there is an increase Increase in Chlorine demand
in turbidity, organic, and manganese in the
water
29. Which of the following would increase alka- CaCO3
linity in the water
30. If you dropped the lid of a sample bottle Use a new container
prior to sampling, what should you do?
31. What is the purpose of the lantern ring in a Provide lubrication and cooling
centrifugal pump
32. What is the definition of well draw down Distance between static and pumping wa-
ter level
Study online at https://quizlet.com/_hm643u
1. Which of the following is removed at the Fish and debris
raw water intake?
2. Which Of the following is more likely to be minerals
found in groundwater
3. What is most commonly used to control copper sulfate
algae growth in reservoirs
4. What are common filtration rates in gravity 2 to 10 GPM/sq.ft.
filtration
5. Leakage within a centrifugal pump is in- Cool moving parts
tended for what purpose?
6. Which of the following is the detention of a a single sample of water collected at a par-
grab sample ticular time which represents the compo-
sition of the water ONLY at that time and
place
7. Adding sodium hypochlorite to water will increase pH
have the following effect.
8. What is the purpose of the groundwater To protect the groundwater from dis-
rule ease-causing microorganisms
9. What is true about the total coliform rule Establishes an MCL based on the presence
and absence of total coliforms or E. coli.
10. What will happen to the water quality if Chlorine will react with carbon and natural-
chlorine is injected at the same location at ize the effects of both
power activated carbon
11. natural organic matter
, Water Treatment Operator Certification
Study online at https://quizlet.com/_hm643u
which of the following will react with chlo-
rine form trihalomethane
12. What type of pump has a piston within the Reciprocating
casing
13. What must be located near a hazardous Saftey data sheets (SDS)
chemical storage room
14. What term describes the depression of a cone of depression
water table
15. What is the radius of influence The radial distance from the center of a
well bore to the point where there is no
lowering of the water table
16. what is the best way to monitor filter per- turbidity
formance
17. What causes water to look cloudy suspended material
18. what chemical is sprayed near a chlorine ammonia
gas leak to produce white smoke
19. Which water sampling parameters must be pH and temperature
taken in the field?
20. If the total coliform tests positive, then Test for fecal coliform
what must be done next?
21. What is performed to evaluate susceptibil- Vulnerability assessment
ity to potential threats and identify correc-
tive action that can refuse or mitigate the
risk for a water system
, Water Treatment Operator Certification
Study online at https://quizlet.com/_hm643u
22. What is the definition of holding time for The length of time a water sample is re-
water samples tained between taking the sample and lab-
oratory analysis
23. From a bacteriological standpoint, what is Protect it from contaminated runoff
important for a well?
24. What is true of chlorine gas It is 2.5 times heavier than air
25. What happens after breakpoint chlorina- Chlorine dose and residual increase at the
tion is achieved same rate
26. If chlorine residual is not detected after 3 Demand has not been met
mg/L of dosage is applied, then what might
be occurring in the water?
27. Which of the following is an indicator or- Coliform
ganisms for pathogens
28. What would happen if there is an increase Increase in Chlorine demand
in turbidity, organic, and manganese in the
water
29. Which of the following would increase alka- CaCO3
linity in the water
30. If you dropped the lid of a sample bottle Use a new container
prior to sampling, what should you do?
31. What is the purpose of the lantern ring in a Provide lubrication and cooling
centrifugal pump
32. What is the definition of well draw down Distance between static and pumping wa-
ter level
