CPO Exam Questions and Answers with Complete Solutions

CPO Exam Questions and Answers with Complete Solutions Which of the following factors should you consider when choosing a disinfectant Chemical safety and storage space When a chlorine compound is introduced to water, what does the chemical reaction form? hypochlorous acid What is the main difference between organic and inorganic chlorine compounds? Organic chlorine contains cyanuric acid For formed (solid) accidents, pool operators should use the following procedure: Maintain the pH between 7.2 & 7.5 & raise the chlorine level to 2.0 ppm What does the DPD test measure? Free Chlorine Which of the following describes water balance The correct ration of mineral content and pH Which of the following factors affect the disinfection process PH, Temperature, and Bather contamination As a disinfectant, what is ozone's limitation? It leaves no residual disinfectant in the water Under which of the following conditions is combine chlorine formed? Free chlorine reacts with ammonia or nitrogen containing organic compounds What does total alkalinity measure? Ability of water to resist changes in pH What is disinfection? Process of destroying microorganisms Which of the following factors contributes to water balance? Calcium hardness Which of the following does the maintenance of pool water chemistry require? Determining what tests should be preformed What is oxidation? Process of changing the chemical structure of contaminants Why is carbon dioxide added to pool or spa water? lower pH For diarrhea discharge, pool operators should use the following procedure: While maintaining the pH between 7.2 and 7.5, raise the chlorine level to 20.0 ppm. Maintain this level for at least 12.75 hours Negligence is defined as the: Failure to act in accordance with the corresponding standard of care Aquatic industry regulations and standards impact: Water quality and disinfection, facility design and construction, and facility operation and management Which of the following statements about Safety Data Sheets (SDSs) is correct? They are required as part of the Hazard Communication Standard Health departments are the source of regulations governing such things as: Water Quality Standards (Disinfection, bacterial limits, etc.), Operational Parameters (Filter sizes, turnover rates, etc.), and swimmer capacity limits. One of the EPA's most important regulations impacting the aquatics industry is: The Emergency Planning and community Right-to-Know Act, EPCRA, also known as SARA Title III One meter = how many feet 3.28 ft Formula for Saturation Index SI = pH + Tf + Cf + Af - TDsf Ideal range of SI -0.3 to 0.5 Ideal range of pH 7.4 to 7.6 Acceptable range of pH 7.2