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Certified Pool Operator (CPO) Final Exam Expected Questions and Answers (Verified Answers)
- The main drain purpose is to
Ans: C. remove sediments and is located at the deep
end of the pool
- The pressure differential between gauges on a pressure filter should not exeed
Ans: B. 10psi
- A sequestering agent may be used in a pool to
Ans: A. prevent precipitation of minerals on pool surfaces
- The surface area of the regular swimming pool 30 feet wide and 75 feet long is
Ans: C. 2,250 square feet
- Which of the following conditions contribute to accelerated growth of algae in pools
Ans: A. sunlight, hot weather and high bather load
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- Chlorine can be used in which of the following forms
Ans: D. all of the above (gas, liquid, powder)
- There are complaints of red eyes in the swimmers and chlorine odors are present.
The alkalinity is 100ppm, the hardness is 240ppm, the pH is 7,4 and the chlorine level is 1.0ppm. What should the operator do?
Ans: A. Shock the pool with chlorine
- To raise pH what may be added to the swimming pool water?
Ans: C. Soda ash
- Low calcium hardness in the pool water will cause
Ans: A. Corrosion of the pool fixtures
- Bromine is sometimes used as a disinfectant
Ans: B. Because it is more stable at higher temperatures than chlorine
- Components and materials used for commercial swimming pools, spas, and hot
tubs must comply with what standard
Ans: A. ANSI/NSPA Standard 5
- A pool should be free of
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