Pool Operator-s Final Exam Question & Answers 2025.docx

Pool Operator's Final Exam Question
& Answers 2025
The percentage of hypoclorous acid formation is most
influenced by: - CORRECT ANSWERS ✔✔pH


Pool painting is usually done: - CORRECT ANSWERS
✔✔Before opening in the spring


When a pool is chlorinated with gas chlorine, the operator
must also use: - CORRECT ANSWERS ✔✔Soda Ash


The term "chlorine demand" refers to: - CORRECT
ANSWERS ✔✔The amount of chlorine which will react
with substances in the pool


Re-circulation pumps used in swimming pools are the
type called: - CORRECT ANSWERS ✔✔Centrifugal
pumps


Reversing the flow of water through the filters is called: -
CORRECT ANSWERS ✔✔Backwash


"Slurry feed" or "body feed" refers to: - CORRECT
ANSWERS ✔✔Diatomite added during a filter run

, Pool Operator's Final Exam Question
& Answers 2025
The term pH is determined by the concentration of: -
CORRECT ANSWERS ✔✔Hydrogen ions


Because carbonate ions combine with hydrogen ions,
sodium carbonate will cause pH to: - CORRECT
ANSWERS ✔✔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: - CORRECT ANSWERS ✔✔Break-
point


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


Which of the following is NOT considered a swimming
pool disinfectant: - CORRECT ANSWERS
✔✔Chlorinated hydrocarbons


When chlorine is used as a disinfectant for swimming
pools, the form in which it's disinfectant properties are
the greatest is: - CORRECT ANSWERS
✔✔Hypochlorous acid