NC Water Operator Certification C
Study online at https://quizlet.com/_dx11d2
1. Langelier Index Corrosivity of water. An index reflecting the equilibrium pH of a water with respect
to calcium and alkalinity. pH-pHs
2. Galvanic Cell An electrolytic cell capable of producing electric energy by electrochemical action.
The decomposition of materials in the cell causes an electric (electron) current to
flow from cathode to anode.
3. Amperage the strength of an electric current in amperes.
4. coupon a steel specimen inserted into water or wastewater to measure corrosiveness.
5. NPDES permit National Pollutant Discharge Elimination System permit is the regulatory agency
document issued by either a federal or state agency that is designed to control all
discharges of potential pollutants.
6. Electrolyte cell device in which the chemical decomposition of material causes an electric current
to flow
7. KMnO4 Potassium permanganate
8. Fe Iron (ferrum)
9. Pb Lead (plumbum)
10. Cu Copper (cuprum)
11. How many years 5 years
does Bacterio-
logical records
needs to be kept?
12. Minimum of 3 years
, NC Water Operator Certification C
Study online at https://quizlet.com/_dx11d2
How many years
should monthly
reports be kept?
13. How many years 5 years
should Chemical
Analysis reports
be kept?
14. Operators who 2 years
allow their li-
cense to lapse
can reapply after
how long?
15. Chlorine gas is 2.5 times more heavier
how much heav-
ier than air?
16. In chlorine 8 inches from floor
room, ventilation
should be no
more than how
far from floor?
17. From liquid to 1 liter to 460 liters
gas, what is the
expansion rate of
chlorine?
18. The fusible plug 156F - 165F (70C-76C)
on a chlorine
cylinder melts
Study online at https://quizlet.com/_dx11d2
1. Langelier Index Corrosivity of water. An index reflecting the equilibrium pH of a water with respect
to calcium and alkalinity. pH-pHs
2. Galvanic Cell An electrolytic cell capable of producing electric energy by electrochemical action.
The decomposition of materials in the cell causes an electric (electron) current to
flow from cathode to anode.
3. Amperage the strength of an electric current in amperes.
4. coupon a steel specimen inserted into water or wastewater to measure corrosiveness.
5. NPDES permit National Pollutant Discharge Elimination System permit is the regulatory agency
document issued by either a federal or state agency that is designed to control all
discharges of potential pollutants.
6. Electrolyte cell device in which the chemical decomposition of material causes an electric current
to flow
7. KMnO4 Potassium permanganate
8. Fe Iron (ferrum)
9. Pb Lead (plumbum)
10. Cu Copper (cuprum)
11. How many years 5 years
does Bacterio-
logical records
needs to be kept?
12. Minimum of 3 years
, NC Water Operator Certification C
Study online at https://quizlet.com/_dx11d2
How many years
should monthly
reports be kept?
13. How many years 5 years
should Chemical
Analysis reports
be kept?
14. Operators who 2 years
allow their li-
cense to lapse
can reapply after
how long?
15. Chlorine gas is 2.5 times more heavier
how much heav-
ier than air?
16. In chlorine 8 inches from floor
room, ventilation
should be no
more than how
far from floor?
17. From liquid to 1 liter to 460 liters
gas, what is the
expansion rate of
chlorine?
18. The fusible plug 156F - 165F (70C-76C)
on a chlorine
cylinder melts
