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POOL AND HOT TUB CPO PRACTICE EXAM QUESTIONS
Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -17 Questions and Answers
-Format: Multiple-choice / Flashcard
Question 1: Where should the water sample be collected from for chemical testing?
Answer:
Emergency Response Plans must include all of the following EXCEPT:
Question 2: If there is a diarrheal incident in your pool, according to the CDC, you must raise the
free chlorine level to 20 ppm and keep it there for:
Answer:
The presence of galvanic corrosion in the water is signaled by:
Question 3: You are the operator of a 100,000 gallon outdoor pool. The water test give you the following readings: total alkalinity is 75 ppm, pH is 7.6, calcium hardness is 200 ppm, temperature is 76 degrees fahrenheit, and total dissolved solids is 1,100 ppm. What is the Saturation Index for this pool?
Answer:
Which is the best method to prevent electrocution?
Question 4: What condition mandates an immediate closure of your swimming pool?
Answer:
When mechanical cooling is used on an indoor therapeutic pool facility, the recommended ASHRAE
fresh air exchange rate should be:
Question 5: Which chemical is used to lower the pH value of pool or spa water?
Answer:
You have a 25,000 gallon hotel pool with a calcium hardness level of 170 ppm. How much calcium chloride (77%) would be required to increase this to 250 PPM?
Question 6: Which chlorine type tends to lower the pH level in water?
Answer:
The vacuum gauge is installed:
Question 7: At your swimming pool, failure to provide the appropriate standard of care to the
public can lead to a case of:
Answer:
Which chemical could be added to lower the chlorine level of the water?Question 8: The Occupational Safety and Health Administration (OSHA) requires aquatic
facilities to maintain:
Answer:
An erosion chemical feeder is what type of feeder?Question 9: How much sodium thiosulfate would you need to lower the free chlorine from 18 ppm to 2.0 ppm in an 150,000 gallon pool?
Answer:
When should you backwash high rate sand filters that have a single pressure gauge?Question 10: 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 525 GPM. Using a filter media rate (fmr) of 15 gallons per minute, what size sand filter would you need to replace your damaged filter?
Answer:
fdsd Question 11: Cyanuric acid (stabilizer) protects free chlorine (FC) against effects of:
Answer:
Which type of filter requires the least amount of water to clean?
Question 12: You are the operator for a pool which is 164 feet long and 80 feet wide. The pool bottom has a constant slope which is 4 feet deep at the shallow end, and 10 feet deep at the deep end. What is the volume of this pool in gallons?
Answer:
f Question 13: What is the likely result if the alkalinity of the pool water is greater than 180 ppm?
Answer:
To be classified as a disinfectant, a chemical must kill or inactivate 99.99% of contaminants and: Question 14: Oxidation Reduction Potential testing (ORP) is measured in:
Answer:
The reagent commonly used to test pH is:
Question 15: What is the best practice to prevent algae growth?
Answer:
You operate a wading (kiddie) pool which has 7,500 gallons of water. The health code requires your pool to operate on a 2-hour turnover rate. What would be the flow rate required to achieve this turnover rate?Question 16: The daily opening checklist should be used to:
Answer:
Evaporation heat losses from a pool are highest under which environmental condition?Question 17: Cloudy or murky green-tinted pool water is usually an indication of:
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