Pool Ops Test with Verified Answers
To prevent a bather from diving into too shallow of water, depth markers should be -
Correct Answers -On horizontal surfaces around the pool, on vertical surfaces within the
pool, a minimum of every 20 feet.
Why is high pH a problem in a swimming pool? - Correct Answers -Irritate eyes of
patrons, reduces effectiveness of chlorine, results in cloudy water
Cyanuric acid is sometimes used as a stabilizer and must never exceed - Correct
Answers -50 ppm
The surface area of a rectangular pool 50 feet wide and 100 feet long is - Correct
Answers -5000 square feet
chloramines are - Correct Answers -weak disinfectants, created when sodium
hypochlorite reacts with the nitrogen and ammonia, and are irritating to the body
Chlorine can be used in which of the following forms? - Correct Answers -Gas, Liquid,
and powder (solid)
chlorine gas is... - Correct Answers -heavier than air, requires special handling, and
must be stored in rooms that are well ventilated
Which filter type removes the smallest particle size? - Correct Answers -Diatomaceous
Earth
Algae primarily forms in a pool because of - Correct Answers -poor water circulation
A skimmer weird - Correct Answers -prevents floating debris from re-entering the pool
If you need to raise free chlorine quickly, how long should patrons wait after manually
adding chlorine to the pool? - Correct Answers -30 minutes
If swimmers complain of a chlorine odor (from chloramines), it can best be removed by
a. breakpoint chlorination
b. doing nothing, odor will gradually disappear
c. adding soda ash
d. Backwashing - Correct Answers -A. Breakpoint chlorination
To prevent a bather from diving into too shallow of water, depth markers should be -
Correct Answers -On horizontal surfaces around the pool, on vertical surfaces within the
pool, a minimum of every 20 feet.
Why is high pH a problem in a swimming pool? - Correct Answers -Irritate eyes of
patrons, reduces effectiveness of chlorine, results in cloudy water
Cyanuric acid is sometimes used as a stabilizer and must never exceed - Correct
Answers -50 ppm
The surface area of a rectangular pool 50 feet wide and 100 feet long is - Correct
Answers -5000 square feet
chloramines are - Correct Answers -weak disinfectants, created when sodium
hypochlorite reacts with the nitrogen and ammonia, and are irritating to the body
Chlorine can be used in which of the following forms? - Correct Answers -Gas, Liquid,
and powder (solid)
chlorine gas is... - Correct Answers -heavier than air, requires special handling, and
must be stored in rooms that are well ventilated
Which filter type removes the smallest particle size? - Correct Answers -Diatomaceous
Earth
Algae primarily forms in a pool because of - Correct Answers -poor water circulation
A skimmer weird - Correct Answers -prevents floating debris from re-entering the pool
If you need to raise free chlorine quickly, how long should patrons wait after manually
adding chlorine to the pool? - Correct Answers -30 minutes
If swimmers complain of a chlorine odor (from chloramines), it can best be removed by
a. breakpoint chlorination
b. doing nothing, odor will gradually disappear
c. adding soda ash
d. Backwashing - Correct Answers -A. Breakpoint chlorination
