POOL OPERATORS EXAM 2023 QUESTIONS AND ANSWERS GRADED AND ALREADY PASSED

Main drain purpose - CORRECT ANS remove sediments and is located at the deep end of the pool the pressure differential pressure between gauges on a pressure filter shouldn't exceed - CORRECT ANS 10 psi which of the following conditions attribute to accelerated growth of algae in a pool - CORRECT ANS sunlight hot weather and high bather load chlorine can be used in which of the following forms - CORRECT ANS gas liquid powder There are complaints of red eyes in the swimmer nd chlorine odors are present. the alkalinity is 100ppm, the harness is 240ppm, the ph is 7.4 and the chine level is 1.0 what should the pool operator do - CORRECT ANS shock the pool with chlorine to raise ph what may be adde to the pool - CORRECT ANS soda ash low calcium hardness in the pool water will cause - CORRECT ANS corrosion of the pool fixtures bromine is sometimes used as a disinfectant because - CORRECT ANS it is more stable at a higher temperature than chlorine components and materials used for commercial swimming pools spas and hot tubs must comply with what standard - CORRECT ANS ansi/nspa standard 5 a pool should be free from - CORRECT ANS floating debris, sediment and dirt, algae a shepherds hook must be attached to a - CORRECT ANS 16 foot one piece pole filtration is - CORRECT ANS the process of removing suspend particles form the water the volume of water going through filter system is measured - CORRECT ANS in gallon per minute if a pool has a volume of 75000 gallons and the turnover rate is 8 hours the minimum required flow rate is - CORRECT ANS 156.25 gallons per minute microorganisms can be shielded from disinfectants if they are in suspended particles. this situation is caused by - CORRECT ANS high turbidity levels the chemical name for dry chlorine is - CORRECT ANS calcium hypochlorite adding liquid or dry chlorine to the pool water has the following effects on ph - CORRECT ANS will raise the ph alkalinity of swimming pool water is recommended to be maintained at - CORRECT ANS 80-140 ppm chlorine is used in pool water to not only kill germs but to - CORRECT ANS oxidize organic matter to becoming a certified pool operator a person must - CORRECT ANS successfully complete training course in pool operations approved by local jurisdictions handrails should be anchored into the - CORRECT ANS pool deck and bottom step an aid in removing small particles from the pool water is - CORRECT ANS a flocculent to clean a cartridge filter - CORRECT ANS soaked in degreaser and hosed off the amount of time that it takes for the total volume of pool water to pass through the circulation system is called - CORRECT ANS turnover rate stains on the interior pool surfaces are usually caused by - CORRECT ANS copper manganese iron