CPO PRACTICE EXAM 2025 QUESTIONS AND ANSWERS 100% ACCURATE.

CPO PRACTICE EXAM 2025 QUESTIONS
AND ANSWERS 100% ACCURATE.

, Which type of filter requires the least amount of water to clean?
(A) Diatomaceous
(B) Rapid rate sand
(C) High rate sand
(D) Cartridge - 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 - 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 - 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 - 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 - 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 - 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 - ANSWER(D) Phenol red