Aquatic Facility Operator Exam Questions
with correct answers
What is NOT one of the AFO's primary responsibilities? - correct answersTeaching Lessons
What should you do every day as a part of your AFO safety duty program? - correct
answersFacility Inspection
How many gallons of water is in one cubic ft? - correct answersapproximately 7.5
How do you calculate how many gallons are in a pool? - correct answers1. calculate the
volume (LxW)xDavg
2. multiple by 7.5 gallons
Law of Dilution - correct answersDuring a turnover less than half of the water molecules pass
through the filter
What kind of pools need a higher turnover? - correct answersSpecial pools
When do gutters NOT work? - correct answerswhen flooded
What do surge pits need? - correct answersroom to contain surge flow
What do modulating float valves regulate? - correct answersthe amount of water contributed
by the bottom outlet by slowly restricting the bottom drain valve as the water level in the
surge pit rises
, What are the two types of pumps? - correct answersSelf-Priming and Flooded Suction
Centrifugal
4 inches = - correct answers400 gpm
What does eliminating dead spots mean? - correct answersHeated and treated water is
equally distributed in the pool
Horizontal High Rate Sand Filter - correct answersincreases surface area
When do you backwash? - correct answersWhen the pressure differential indicates it is
needed
When do you body feeding (DE) ? - correct answersduring the filter cycle
What is oxidation? - correct answersa chemical process that destroys organic compounds in
the pool water
What is disinfection? - correct answersthe chemical process that kills or deactivates
pathogens
What does oxidation do? - correct answersdestroys organics
What does sanitation do? - correct answersdestroys bacteria
What does poor oxidation result in? - correct answerscloudy turbid water
with correct answers
What is NOT one of the AFO's primary responsibilities? - correct answersTeaching Lessons
What should you do every day as a part of your AFO safety duty program? - correct
answersFacility Inspection
How many gallons of water is in one cubic ft? - correct answersapproximately 7.5
How do you calculate how many gallons are in a pool? - correct answers1. calculate the
volume (LxW)xDavg
2. multiple by 7.5 gallons
Law of Dilution - correct answersDuring a turnover less than half of the water molecules pass
through the filter
What kind of pools need a higher turnover? - correct answersSpecial pools
When do gutters NOT work? - correct answerswhen flooded
What do surge pits need? - correct answersroom to contain surge flow
What do modulating float valves regulate? - correct answersthe amount of water contributed
by the bottom outlet by slowly restricting the bottom drain valve as the water level in the
surge pit rises
, What are the two types of pumps? - correct answersSelf-Priming and Flooded Suction
Centrifugal
4 inches = - correct answers400 gpm
What does eliminating dead spots mean? - correct answersHeated and treated water is
equally distributed in the pool
Horizontal High Rate Sand Filter - correct answersincreases surface area
When do you backwash? - correct answersWhen the pressure differential indicates it is
needed
When do you body feeding (DE) ? - correct answersduring the filter cycle
What is oxidation? - correct answersa chemical process that destroys organic compounds in
the pool water
What is disinfection? - correct answersthe chemical process that kills or deactivates
pathogens
What does oxidation do? - correct answersdestroys organics
What does sanitation do? - correct answersdestroys bacteria
What does poor oxidation result in? - correct answerscloudy turbid water
