Pool Operators Course Exam Questions With
Verified Answers.
The CDC estimates that approximately how many water related injuries occur annually? -
answer✔140000
To prevent spinal injuries when diving in pools, what needs to happen? - answer✔"No diving"
markers should be present, no diving in under 6 feet of water, and only diving from diving
boards or stands should be allowed
Built in stairs are commonly used in what end of pools and must have what? - answer✔Shallow
ends and secure handrails
Who is responsible for maintaining the daily pool operation log? - answer✔The certified pool
operator
What is the strongest point of suction in a pool that may lead to entrapment and drowning of a
bather? - answer✔The main drain
There must be how many ladders or stairways provided in a pool for adequate access and egress
for swimmers? - answer✔Two
What is the physical process of removing suspended particles from the pool water called? -
answer✔Filtration
As dirt accumulates inside a filter, the amount of water that can pass through the filter... -
answer✔Decreases
What is a damaging condition that occurs over time in a sand filter? - answer✔Channeling
What is the process of removing accumulated particles from inside a sand filter? -
answer✔Backwashing
High rate sand filters typically have a filter rate of how many gallons per minute per square foot?
- answer✔15-25
The volume of water going through a filter system in measured in... - answer✔Gallons per
minute
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The turnover rate for a swimming pool is every... - answer✔6 hours
What is the equation for a surface area of a rectangular or square pool? - answer✔Length x width
= surface area
What is the equation for surface area of a circular pool? - answer✔3.14 (pie) x r^2 = surface area
(r=radius)
What is the equation for the volume of a swimming pool? - answer✔Length x width x depth x
7.48 = volume
The amount of time it takes for the total volume of pool water to pass through the circulation
system is the... - answer✔Turnover rate
What is the equation for minimum required flow rate? - answer✔(Volume of pool/turnover
rate)/60=flow rate
Alger primarily forms in a swimming pool because of... - answer✔Poor water circulation
_________ can penetrate into the plaster of the pool surface and cause damage (being the most
difficult type of algae to control) - answer✔Black algea
The pool must be ______ and _____ in order to remove stains from the interior pool surface -
answer✔Drained and acid washed
_________ requires special handling, is heavier than air and must be stored in rooms that are
well ventilated. - answer✔Chlorine gas
What is the recommended level of free chlorine in a swimming pool? - answer✔1 to 10 parts per
million (ppm)
Shocking the pol with chlorine can... - answer✔Remove a chlorine odor emanating from a pool
(which is usually chloramines)
What will sanitize the water and prevent the growth of algae? - answer✔Adding chlorine to
water
What will rise the pH? - answer✔Adding liquid or dry chlorine to pool water
When should the pool operator close the pool? - answer✔If he ever finds the water has become
cloudy and he cannot see the main drain
What does chlorine do? - answer✔Kills germs and oxidizes organic matter in pool water