CPO Practice EXAM-with 100% verified solutions 2024-2025, Exams of Nursing

Download CPO Practice EXAM-with 100% verified solutions 2024-2025 and more Exams Nursing in PDF only on Docsity! CPO Practice EXAM-with 100% verified solutions 2024- 2025 Which type of filter requires the least amount of water to clean? (A) Diatomaceous (B) Rapid rate sand (C) High rate sand (D) Cartridge (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 (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 (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 (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 (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 (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 (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 There is a diarrheal accident in 206,000 gallon pool. According to the CDC, the first step you should take to correctly handle this incident is: (A) Remove all the swimmers from the pool (B) Remove the excrement from the pool (C) Backwash the filters (D) add 20 lbs. sodium bicarbonate (A) Remove all the swimmers from the pool If you have sand from your filter returning to the pool through the inlets, what is the likely cause? (A) Sand bed blocked (B) Broken filter laterals (C) Blocked filter laterals (D) Too frequent backwash cycle (B) Broken filter laterals Which procedure is used to determine the level of combined chlorine in water? (A) Test for free chlorine and pH, then divide the pH number by the free chlorine number (B) Test for total chlorine and combined chlorine, then subtract the combined chlorine number from the total chlorine number (C) Test for free chlorine and total chlorine, then subtract the free chlorine number from the total chlorine number (D) Test for total alkalinity and pH, then multiply the total alkalinity number by the pH number (C) Test for free chlorine and total chlorine, then subtract the free chlorine number from the total chlorine number You are the operator for a pool which is 75 feet long and 48 feet wide. The pool bottom has a constant slope which is 4 feet deep at the shallow end, and 6 feet deep at the deep end. What is the volume of this pool in gallons? (A) 135,000 gallons (B) 125,000 gallons (C) 145,000 gallons (D) 140,000 gallons (A) 135,000 gallons You operate a pool which uses high rate sand filters. You discover that your filter tank has developed a major leak and must be replaced. Your pool operates with a flow rate of 625 gmp. Using a filter media t=rate (fmr) of 12 gallons per minute, what size sand filter would you need to replace your damaged filter? (A) 50 sq. ft. (B) 36 sq. ft. (C) 38 sq. ft. (D) 52 sq. ft (D) 52 sq. ft What is the best practice to prevent algae growth? (A) Raise the pH (B) Routinely brush pool and spa walls (C) Increase pool water temperature (D) Use UV as a supplement (B) Routinely brush pool and spa walls The presence of galvanic corrosion in water is signaled by: (A) Discoloration of metal parts submerged in water (B) TDS level 1,500 ppm higher than make-up water TDS level (C) Saturation index less than -0.3 (D) Water tinted blue (A) Discoloration of metal parts submerged in water If there is a diarrheal incident in your pool, according to the Centers for Disease Control and Prevention (CDC), you must raise the free chlorine level to 20 ppm and keep it there for: (A) 12.75 hours (B) 45 minutes (C) 25.55 hours (D) 17.00 hours (A) 12.75 hours Which chemical could be added to lower the chlorine level in the water? (A) Calcium chloride (B) Sodium thiosulfate (C) Sodium sesquicarbonate (D) Cyanuric Acid (B) Sodium thiosulfate At your swimming pool, failure to provide the appropriate standard of care to the public can lead to a case of: (A) Negligence (C) Sodium bicarbonate (D) Cyanuric acid (C) Sodium bicarbonate Legionnaire's disease is spread by: (A) Breathing contaminated water droplets (B) Ingestion (C) Direct skin contact (D) Contaminated water in the ear (A) Breathing contaminated water droplets Which type of filter system will remove the smallest particles? (A) Rapid rate sand (B) Zeolite (C) High rate sand (D) Diatomaceous earth (D) Diatomaceous earth Before daily pool opening, what is the first area that should be inspected? (A) Pool/ Spa and deck (B) Barriers (C) Pump room (D) Bathhouse and restroom (A) Pool/ Spa and deck Which filter media would not require a dust mask when handling and storing? (A) Silica sand (B) Cartridge (C) Diatomaceous earth (D) Zeolite (B) Cartridge You operate a 50,000 gallon indoor pool, and your chemcial test readings are: total available chlorine is 3.0, and a free available chlroine is 1.5. How much calcium hypochlorite is needed to reach breakpoint? (A) 3.7 lbs. (B) 5.6 lbs., (C) 8.4 lbs. (D) 9.4 lbs. (C) 8.4 lbs. What is the maximum spa water temperature typically allowed? (A) 100 degrees F (B) 104 degrees F (C) 98 degrees F (D) 102 degrees F (B) 104 degrees F You readings for your pool are: total chlorine of 1.6; free chlorine of 1.5; pH of 7.4. According to the CDC, what action do you take if there is a solid stool fecal incident? (A) Clear the pool of users and boost the chlorine to 20 ppm for 8 hours (B) Allow swimmers to remain in the pool and raise the free chlorine to 2.0 ppm (C) Clear the pool and raise the free chlorine to 2 ppm for 30 mins (D) Raise the free chlorine to 12.75 ppm for 1 hour (C) Clear the pool and raise the free chlorine to 2 ppm for 30 mins In pre coating a vacuum D.E. filter, what is the standard addition rate per 10 ft. sq. of filter surface area? (A) 2 to 3 lbs. (B) 5 lbs. (C) 1 to 1.5 lbs. (D) 5 to 10 lbs. (C) 1 to 1.5 lbs. How many gallons of sodium hypochlorite would be needed to raise the free chlorine level from 3.0 ppm to 5.0 ppm in a 75,000 gallon pool? (A) 6 gallons (B) 3 gallons (C) 2 gallons (D) 1.25 gallons (D) 1.25 gallons Which of the following is NOT considered to be personal protective equipment? (A) Liquid impervious gloves (B) Chemical goggles (C) Fire extinguisher