7/13/26, 6:33 PM CPO Practice EXAM, || QUESTIONS WITH ACCURATE ANSWERS || comprehensive questions and verified answers | GET IT RIG…
CPO Practice EXAM, || QUESTIONS WITH
ACCURATE ANSWERS || comprehensive
questions and verified answers | GET IT RIGHT
|2026!
Save Add to calendar
Terms in this set (50)
Which type of filter requires the least (D) Cartridge
amount of water to clean?
(A) Diatomaceous
(B) Rapid rate sand
(C) High rate sand
(D) Cartridge
Cyanuric acid (stabilizer) protects (C) Ultraviolet rays from the sun
free chlorine (FC) against the effects
of:
(A) Pathogens like Crypto, Giardia,
and Shigella
(B) High Total dissolved solids
(C) Ultraviolet rays from the sun
(D) High PH
https://quizlet.com/1194523854/cpo-practice-exam-questions-with-accurate-answers-comprehensive-questions-and-verified-answers-get-it-right-2026… 1/16
,7/13/26, 6:33 PM CPO Practice EXAM, || QUESTIONS WITH ACCURATE ANSWERS || comprehensive questions and verified answers | GET IT RIG…
An erosion chemical feeder is what (C) Dry chemical feeder
type of feeder?
(A) Peristaltic pump
(B) Piston pump
(C) Dry chemical feeder
(D) Gas system
OSHA requires aquatic facilities to (D) SDS's for all chemicals used at the facility
maintain:
(A) Safety Data Sheets only for
sanitizing chemicals
(B) Lifeguard certifications
(C) Air temperature recordings
(D) SDS's for all chemicals used at
the facility
When mechanical cooling is used on (B) 4 to 6 exchanges per hour
an indoor therapeutic pool facility,
the recommended ASHRAE fresh air
exchange rate should be:
(A) 2 to 4 exchanges per hour
(B) 4 to 6 exchanges per hour
(C) 6 to 8 exchanges per hour
(D) As many as possible
https://quizlet.com/1194523854/cpo-practice-exam-questions-with-accurate-answers-comprehensive-questions-and-verified-answers-get-it-right-2026… 2/16
, 7/13/26, 6:33 PM CPO Practice EXAM, || QUESTIONS WITH ACCURATE ANSWERS || comprehensive questions and verified answers | GET IT RIG…
What condition mandates an (B) Main drain not visible from the deck
immediate closure of your swimming
pool?
(A) Locker room is not clean
(B) Main drain not visible from the
deck
(C) No automatic feeders installed
(D) No underwater lights installed
The reagent commonly used to test (D) Phenol red
PH is:
(A) DPD
(B) Sodium Thiosulfate
(C) Coolomatic
(D) Phenol red
When should you backwash high (A) After an 8 to 10 psi increase above starting
rate sand filters that have a single pressure
pressure gauge?
(A) After an 8 to 10 psi increase
above starting pressure
(B) Every 2 days
(C) Once per week
(D) When the influent and effluent
gauges are 10 to 20 psi apart
Oxidation Reduction Potential (B) Millivolts (mV)
testing (ORP) is measured in:
(A) Parts per million (ppm)
(B) Millivolts (mV)
(C) Gallons per minute (gpm)
(D) Free available chlorine (FAC)
https://quizlet.com/1194523854/cpo-practice-exam-questions-with-accurate-answers-comprehensive-questions-and-verified-answers-get-it-right-2026… 3/16
CPO Practice EXAM, || QUESTIONS WITH
ACCURATE ANSWERS || comprehensive
questions and verified answers | GET IT RIGHT
|2026!
Save Add to calendar
Terms in this set (50)
Which type of filter requires the least (D) Cartridge
amount of water to clean?
(A) Diatomaceous
(B) Rapid rate sand
(C) High rate sand
(D) Cartridge
Cyanuric acid (stabilizer) protects (C) Ultraviolet rays from the sun
free chlorine (FC) against the effects
of:
(A) Pathogens like Crypto, Giardia,
and Shigella
(B) High Total dissolved solids
(C) Ultraviolet rays from the sun
(D) High PH
https://quizlet.com/1194523854/cpo-practice-exam-questions-with-accurate-answers-comprehensive-questions-and-verified-answers-get-it-right-2026… 1/16
,7/13/26, 6:33 PM CPO Practice EXAM, || QUESTIONS WITH ACCURATE ANSWERS || comprehensive questions and verified answers | GET IT RIG…
An erosion chemical feeder is what (C) Dry chemical feeder
type of feeder?
(A) Peristaltic pump
(B) Piston pump
(C) Dry chemical feeder
(D) Gas system
OSHA requires aquatic facilities to (D) SDS's for all chemicals used at the facility
maintain:
(A) Safety Data Sheets only for
sanitizing chemicals
(B) Lifeguard certifications
(C) Air temperature recordings
(D) SDS's for all chemicals used at
the facility
When mechanical cooling is used on (B) 4 to 6 exchanges per hour
an indoor therapeutic pool facility,
the recommended ASHRAE fresh air
exchange rate should be:
(A) 2 to 4 exchanges per hour
(B) 4 to 6 exchanges per hour
(C) 6 to 8 exchanges per hour
(D) As many as possible
https://quizlet.com/1194523854/cpo-practice-exam-questions-with-accurate-answers-comprehensive-questions-and-verified-answers-get-it-right-2026… 2/16
, 7/13/26, 6:33 PM CPO Practice EXAM, || QUESTIONS WITH ACCURATE ANSWERS || comprehensive questions and verified answers | GET IT RIG…
What condition mandates an (B) Main drain not visible from the deck
immediate closure of your swimming
pool?
(A) Locker room is not clean
(B) Main drain not visible from the
deck
(C) No automatic feeders installed
(D) No underwater lights installed
The reagent commonly used to test (D) Phenol red
PH is:
(A) DPD
(B) Sodium Thiosulfate
(C) Coolomatic
(D) Phenol red
When should you backwash high (A) After an 8 to 10 psi increase above starting
rate sand filters that have a single pressure
pressure gauge?
(A) After an 8 to 10 psi increase
above starting pressure
(B) Every 2 days
(C) Once per week
(D) When the influent and effluent
gauges are 10 to 20 psi apart
Oxidation Reduction Potential (B) Millivolts (mV)
testing (ORP) is measured in:
(A) Parts per million (ppm)
(B) Millivolts (mV)
(C) Gallons per minute (gpm)
(D) Free available chlorine (FAC)
https://quizlet.com/1194523854/cpo-practice-exam-questions-with-accurate-answers-comprehensive-questions-and-verified-answers-get-it-right-2026… 3/16
