CPO Certification Practice Test Questions and 100% Correct Answers

You operate a 120,000 gallon pool, and upon performing your hourly chemical tests you observe the following readings: Total Available Chlorine reading is 1.6 Free available chlorine reading is 1.5 pH is 7.4 Your supervising lifeguard has just informed you that you have had a fecal incident occur; a solid stool has been discharged into the pool. According to the Centers for Disease Control, as the CPO, you should do the following: A. clear the pool of users and boost the free chlorine to 17 ppm B. clear the pool and raise the free chlorine to 2 ppm C. allow swimmers to remain in the pool, but raise the free chlorine to 10 ppm. D. none of the above - Correct Answer B. clear the pool and raise the free chlorine to 2 ppm Assuming that your local health department requires you to raise the free chlorine to 5 ppm, how much sodium hypochlorite would be needed to raise the free chlorine in the pool in question #1 to that level? A. 6 gallons B. 3.5 gallons C. 9 gallons D. 35 gallons - Correct Answer B. 3.5 gallons You are the CPO for an indoor health club pool. The facility manager informs you that he is receiving complaints about a strong chlorine odor in the pool area, and several members have complained of eye irritation. The most likely cause of these complaints is: A. too much free chlorine in the water B. too few swimmers in the pool C. high levels of chloramines in the pool D. high calcium levels in the water - Correct Answer C. high levels of chloramines in the pool To determine the level of chloramines in the water, you should do which of the following?