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Pool Operator's Final Exam Study Guide Solutions

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Pool Operator's Final Exam Study Guide Solutions 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 ...

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  • November 11, 2024
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  • 2024/2025
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Pool Operator's Final Exam Study Guide

Solutions


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: - ANSWER✔✔-

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: - ANSWER✔✔-Break-point


"Residual chlorine" refers to: - ANSWER✔✔-The amount left in the water after oxidation of organic

material


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Which of the following is NOT considered a swimming pool disinfectant: - ANSWER✔✔-Chlorinated

hydrocarbons


When 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

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