Pool Operator's Final Test Questions With 100% Correct Answers!!

The percentage of hypoclorous acid formation is most influenced by: - Answer-pH Pool painting is usually done: - Answer-Before opening in the spring When a pool is chlorinated with gas chlorine, the operator must also use: - Answer-Soda Ash The term "chlorine demand" refers to: - Answer-The amount of chlorine which will react with substances in the pool Re-circulation pumps used in swimming pools are the type called: - Answer-Centrifugal pumps Reversing the flow of water through the filters is called: - Answer-Backwash "Slurry feed" or "body feed" refers to: - Answer-Diatomite added during a filter run The term pH is determined by the concentration of: - Answer-Hydrogen ions Because carbonate ions combine with hydrogen ions, sodium carbonate will cause pH to: - AnswerRise 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: - Answer-Breakpoint "Residual chlorine" refers to: - Answer-The amount left in the water after oxidation of organic material Which of the following is NOT considered a swimming pool disinfectant: - Answer-Chlorinated hydrocarbonsWhen chlorine is used as a disinfectant for swimming pools, the form in which it's disinfectant properties are the greatest is: - Answer-Hypochlorous acid The chemical most commonly used to raise pH is: - Answer-Sodium carbonate An example of a chemical used to stabilize chlorine is: - Answer-Cyanuric acid The chemical reagent recommended by the health department to test chlorine residual in swimming pools is: - Answer-D.P.D. The chemical reagent used most often to test pH in swimming pools is: - Answer-Phenol red Considering all factors, which of the following would be the BEST range for pH in a swimming pool: - Answer-7.2-7.8 The minimum turnover rate to obtain 100% clarity in a pool is: - Answer-Once in eight hours There is a noticeable odor of chlorine around your pool and bathers are complaining of eye irritation. Which of the following is most likely to solve the problem: - Answer-Break point chlorination As pH increases, chlorine effectiveness: - Answer-Decreases In a high-rate sand filter system, the tanks are backwashed: - Answer-All at once The baffle in the filter tank is there to: - Answer-Disperse water evenly over the surface of the filter media An access manhole is constructed on each tank in sand and anthracite filter systems: - Answer-All of the above A hair and lint strainer should be located: - Answer-Before the pump and before the filter