CPO Practice Test
Which type of filter requires the least amount of water to clean?
(A) Diatomaceous
(B) Rapid rate sand
(C) High rate sand
(D) Cartridge - correct answer✔ ✔ (D) Cartridge
Cyanuric acid (stabilizer) protects 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 - correct answer✔ ✔ (C) Ultraviolet rays from
the sun
An erosion chemical feeder is what type of feeder?
(A) Peristaltic pump
(B) Piston pump
(C) Dry chemical feeder
,(D) Gas system - correct answer✔ ✔ (C) Dry chemical
feeder
OSHA requires aquatic facilities to 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 - correct answer
✔ ✔ (D) SDS's for all chemicals used at the facility
When mechanical cooling is used on 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 - correct answer✔ ✔ (B) 4 to 6
exchanges per hour
What condition mandates an 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 - correct answer✔ ✔ (B)
Main drain not visible from the deck
The reagent commonly used to test PH is:
(A) DPD
(B) Sodium Thiosulfate
(C) Coolomatic
(D) Phenol red - correct answer✔ ✔ (D) Phenol red
When should you backwash high rate sand filters that have a
single 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
- correct answer✔ ✔ (A) After an 8 to 10 psi increase above
starting pressure
Which type of filter requires the least amount of water to clean?
(A) Diatomaceous
(B) Rapid rate sand
(C) High rate sand
(D) Cartridge - correct answer✔ ✔ (D) Cartridge
Cyanuric acid (stabilizer) protects 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 - correct answer✔ ✔ (C) Ultraviolet rays from
the sun
An erosion chemical feeder is what type of feeder?
(A) Peristaltic pump
(B) Piston pump
(C) Dry chemical feeder
,(D) Gas system - correct answer✔ ✔ (C) Dry chemical
feeder
OSHA requires aquatic facilities to 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 - correct answer
✔ ✔ (D) SDS's for all chemicals used at the facility
When mechanical cooling is used on 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 - correct answer✔ ✔ (B) 4 to 6
exchanges per hour
What condition mandates an 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 - correct answer✔ ✔ (B)
Main drain not visible from the deck
The reagent commonly used to test PH is:
(A) DPD
(B) Sodium Thiosulfate
(C) Coolomatic
(D) Phenol red - correct answer✔ ✔ (D) Phenol red
When should you backwash high rate sand filters that have a
single 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
- correct answer✔ ✔ (A) After an 8 to 10 psi increase above
starting pressure
