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Certified Pool Operator (CPO) Final Exam Expected Questions and Answers (Verified Answers)
- The percentage of hypoclorous acid formation is most influenced by
Ans: pH
- Pool painting is usually done
Ans: Before opening in the spring
3. When a pool is chlorinated with gas chlorine, the operator must also use:-
: Ans: Soda Ash
- The term "chlorine demand" refers to
Ans: The amount of chlorine which will react with substances in the pool
- Re-circulation pumps used in swimming pools are the type called
Ans: Centrifu- gal pumps
- Reversing the flow of water through the filters is called 1 / 2
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Ans: Backwash
- "Slurry feed" or "body feed" refers to
Ans: Diatomite added during a filter run
- The term pH is determined by the concentration of
Ans: Hydrogen ions
- Because carbonate ions combine with hydrogen ions, sodium carbonate will
cause pH to
Ans: Rise
- When enough chlorine is added to cause complete oxidation of all organic
compounds, a sudden drop in residual chlorine may be noticed. The point at which this occurs is called the
Ans: Break-point
- "Residual chlorine" refers to
Ans: The amount left in the water after oxidation of organic material
12. Which of the following is NOT considered a swimming pool disinfectant:-
: Ans: Chlorinated hydrocarbons
- When chlorine is used as a disinfectant for swimming pools, the form in which
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