CPO Practice Test Questions and
Answers Verified Solutions Latest
Update
Question:
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
Answer:
(C) Ultraviolet rays from the sun
Question:
An erosion chemical feeder is what type of feeder? (A) Peristaltic pump (B) Piston pump
(C) Dry chemical feeder (D) Gas system
Answer:
(C) Dry chemical feeder
Question:
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
Answer:
(D) SDS's for all chemicals used at the facility
Question:
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
Answer:
(B) 4 to 6 exchanges per hour
, Question:
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
Answer:
(B) Main drain not visible from the deck
Question:
The reagent commonly used to test PH is: (A) DPD (B) Sodium Thiosulfate (C)
Coolomatic (D) Phenol red
Answer:
(D) Phenol red
Question:
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
Answer:
(A) After an 8 to 10 psi increase above starting pressure
Question:
Oxidation Reduction Potential testing (ORP) is measured in: (A) Parts per million (ppm)
(B) Millivolts (mV) (C) Gallons per minute (gpm) (D) Free available chlorine (FAC)
Answer:
(B) Millivolts (mV)
Question:
How much sodium thiosulfate would you need to lower the free chlorine from 18 ppm
to 2.0 ppm in a 150,000 gallon pool? (A) 35 lbs. (B) 30 lbs. (C) 25 lbs. (D) 39 lbs.
Answer:
(D) 39 lbs.
Answers Verified Solutions Latest
Update
Question:
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
Answer:
(C) Ultraviolet rays from the sun
Question:
An erosion chemical feeder is what type of feeder? (A) Peristaltic pump (B) Piston pump
(C) Dry chemical feeder (D) Gas system
Answer:
(C) Dry chemical feeder
Question:
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
Answer:
(D) SDS's for all chemicals used at the facility
Question:
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
Answer:
(B) 4 to 6 exchanges per hour
, Question:
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
Answer:
(B) Main drain not visible from the deck
Question:
The reagent commonly used to test PH is: (A) DPD (B) Sodium Thiosulfate (C)
Coolomatic (D) Phenol red
Answer:
(D) Phenol red
Question:
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
Answer:
(A) After an 8 to 10 psi increase above starting pressure
Question:
Oxidation Reduction Potential testing (ORP) is measured in: (A) Parts per million (ppm)
(B) Millivolts (mV) (C) Gallons per minute (gpm) (D) Free available chlorine (FAC)
Answer:
(B) Millivolts (mV)
Question:
How much sodium thiosulfate would you need to lower the free chlorine from 18 ppm
to 2.0 ppm in a 150,000 gallon pool? (A) 35 lbs. (B) 30 lbs. (C) 25 lbs. (D) 39 lbs.
Answer:
(D) 39 lbs.
