Aquatic Facility Operator Exam Questions with Verified
Answers 2025
What is oxidation? - Answer- a chemical process that destroys organic compounds in the pool
water
What is disinfection? - Answer- the chemical process that kills or deactivates pathogens
What does oxidation do? - Answer- destroys organics
What does sanitation do? - Answer- destroys bacteria
What does poor oxidation result in? - Answer- cloudy turbid water
What is the desirable chlorine compound? - Answer- HOCl
Why is HOCl the desirable chlorine compound? - Answer- because it oxidizes AND sanitizes
When is HOCl produced? - Answer- Upon gas chlorine, sodium hypochlorite (bleach) or calcium
hypochlorite being added to water
pH of soda ash - Answer- dissolved in water pH 13+
Safety considerations for chemical handling require what? - Answer- eye wash station
When are chloramines formed? - Answer- under a heavy organic load with low chlorine levels,
often with limited air movement
How do you get rid of chloramines? - Answer- you super chlorinate
Answers 2025
What is oxidation? - Answer- a chemical process that destroys organic compounds in the pool
water
What is disinfection? - Answer- the chemical process that kills or deactivates pathogens
What does oxidation do? - Answer- destroys organics
What does sanitation do? - Answer- destroys bacteria
What does poor oxidation result in? - Answer- cloudy turbid water
What is the desirable chlorine compound? - Answer- HOCl
Why is HOCl the desirable chlorine compound? - Answer- because it oxidizes AND sanitizes
When is HOCl produced? - Answer- Upon gas chlorine, sodium hypochlorite (bleach) or calcium
hypochlorite being added to water
pH of soda ash - Answer- dissolved in water pH 13+
Safety considerations for chemical handling require what? - Answer- eye wash station
When are chloramines formed? - Answer- under a heavy organic load with low chlorine levels,
often with limited air movement
How do you get rid of chloramines? - Answer- you super chlorinate
