Pool Operator's Final Exam Questions
and Answers 100% Pass
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
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, 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 hydrocarbons
When chlorine is used as a disinfectant for swimming pools, the form in which it's
disinfectant properties are the greatest is: - ✔✔Hypochlorous acid
The chemical most commonly used to raise pH is: - ✔✔Sodium carbonate
An example of a chemical used to stabilize chlorine is: - ✔✔Cyanuric acid
The chemical reagent recommended by the health department to test chlorine residual
in swimming pools is: - ✔✔D.P.D.
The chemical reagent used most often to test pH in swimming pools is: - ✔✔Phenol red
Considering all factors, which of the following would be the BEST range for pH in a
swimming pool: - ✔✔7.2-7.8
The minimum turnover rate to obtain 100% clarity in a pool is: - ✔✔Once in eight hours
100% Pass Guarantee Katelyn Whitman All Rights Reserved © 2025 2
and Answers 100% Pass
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
100% Pass Guarantee Katelyn Whitman All Rights Reserved © 2025 1
, 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 hydrocarbons
When chlorine is used as a disinfectant for swimming pools, the form in which it's
disinfectant properties are the greatest is: - ✔✔Hypochlorous acid
The chemical most commonly used to raise pH is: - ✔✔Sodium carbonate
An example of a chemical used to stabilize chlorine is: - ✔✔Cyanuric acid
The chemical reagent recommended by the health department to test chlorine residual
in swimming pools is: - ✔✔D.P.D.
The chemical reagent used most often to test pH in swimming pools is: - ✔✔Phenol red
Considering all factors, which of the following would be the BEST range for pH in a
swimming pool: - ✔✔7.2-7.8
The minimum turnover rate to obtain 100% clarity in a pool is: - ✔✔Once in eight hours
100% Pass Guarantee Katelyn Whitman All Rights Reserved © 2025 2
