Pool Operator | Questions and Answers with complete solution

The percentage of hypoclorous acid formation is most influenced by: - pH Pool painting is usually done: - Before opening in the spring When a pool is chlorinated with gas chlorine, the operator must also use: - Soda Ash The term "chlorine demand" refers to: - The amount of chlorine which will react with substances in the pool Re-circulation pumps used in swimming pools are the type called: - Centrifugal pumps Reversing the flow of water through the filters is called: - Backwash "Slurry feed" or "body feed" refers to: - Diatomite added during a filter run The term pH is determined by the concentration of: - Hydrogen ions Because carbonate ions combine with hydrogen ions, sodium carbonate will cause pH to: - 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: - Break-point "Residual chlorine" refers to: - The amount left in the water after oxidation of organic material Which of the following is NOT considered a swimming pool disinfectant: - Chlorinated hydrocarbonsWhen chlorine is used as a disinfectant for swimming pools, the form in which it's disinfectant properties are the greatest is: - Hypochlorous acid