2026\2027 A+ Grade
The CDC estimates that approximately ____________ water related injuries occur annually.
- correct answer 140,000
How do you prevent spinal injuries?
- correct answer -"no diving" markers should be present
-no diving in under 6 feet of water
-diving should only be allowed from diving boards or stands
Built in stairs...
- correct answer -commonly in the shallow end
-must have a secure handrail
Certified pool operators are responsible for
- correct answer Maintaining the daily pool log
The Main Drain...
- correct answer -is the strongest point of suction
-may lead to entrapment and drowning of a bather
There must be at least _____ ladders or stairways provided in a pool for adequate access and egress for
swimmers.
- correct answer 2
Filtration is...
- correct answer The physical process of removing suspended particles from the pool water
, As dirt accumulates inside a filter, the amount of water that can pass through the filter...?
- correct answer Drecreases
Channeling is...
- correct answer A damaging condition that occurs over time in a sand filter
Back washing is the process of...
- correct answer Removing accumulated particles from inside a sand filter
What is the rate of high rate sand filters?
- correct answer 15-25 gallons per minute per square foot
What is the volume of water going through a filter system measured in?
- correct answer Gallons per minute
The turnover rate for a swim in pool is every ____ __________?
- correct answer 6 hours
Equation for surface area of a rectangular or square pool?
- correct answer Length x width = surface area
Equation for surface area of a circular pool?
- correct answer pi * r^2 = SA where r = radius
Equation for the volume of a swimming pool?
- correct answer Length x width x depth x 7.48 = V
Turnover rate is...
- correct answer The amount of time it takes for the total volume of pool water to pass through the
circulation system
Equation for minimum required flow rate?
- correct answer (Volume of pool / turnover rate) / 60 = flow rate