POOL OPERATOR EXAMINERS SET ANSWERS AND
QUESTIONS SET A+
✔✔The turnover rate is? - ✔✔Time it takes for all the water to go through the filter
system
✔✔Algae forms because of ? - ✔✔Poor circulation
✔✔To remove stains from the pool bottom and walls you need to? - ✔✔Drain and acid
wash the pool
✔✔What does adding chlorine to the pool do? - ✔✔Raises Ph level
✔✔The formula for AREA - ✔✔length x width
✔✔What is the surface area of a pool 50 ft wide and 100 feet long - ✔✔5000 square
feet
✔✔Formula for pool volume - ✔✔length x width x depth x 7.48
✔✔The volume of water in a rectangular pool that is 12 feet wide, 34 feet long and
constant depth of 3 feet - ✔✔9155 gallons
✔✔Circular pool area is? - ✔✔r x 3.14
✔✔For a 15000 gallon pool with an an 8 hour turnover rate the _____ is 31.25 -
✔✔Flow Rate
✔✔CDC states that the number accidents related to swimming - ✔✔140000/year
✔✔The minimum number of ladders in a pool - ✔✔2 ladders
, ✔✔Stairs in a pool must have these - ✔✔Handrails
✔✔When a pool has a deep end of more than 5 feet, it must have these two things: -
✔✔safety line and a slope line mark
✔✔Pools should have both horizontal and vertical depth markers no more than - ✔✔25
feet apart
✔✔The algae that causes the most damage to a pool is - ✔✔Black Algae
✔✔Low chlorine levels will cause ___ in the pool - ✔✔Green Algae
✔✔The person responsible for keeping records at the pool is - ✔✔pool operator
✔✔If the pool is cloudy and you cannot see the main drain, what do you do? - ✔✔Close
the pool to swimmers
✔✔PH should be between ___ and ___ - ✔✔7.2 and 7.8
✔✔To raise pH you add... - ✔✔Soda Ash
✔✔To lower pH you add - ✔✔Muriatic acid
✔✔Chlorine levels should be between ____ and ____ - ✔✔1.0 and 5.0
✔✔Liquid chlorine is named - ✔✔Sodium Hypochlorite
✔✔Powder chlorine is named - ✔✔Calcium Hypochlorite
✔✔Chlorine comes in these forms - ✔✔Liquid, gas, and powder
✔✔Chlorine is added to the pool to - ✔✔Oxidize organic matter
✔✔When you add chlorine to the water it forms - ✔✔Hydrochlorous acid
✔✔Total Alkalinity of a pool should be between ? - ✔✔80 and 120 ppm
✔✔Low alkalinity results in ? - ✔✔Loss of pH control (pH bounce)
✔✔To raise total alkalinity you should add - ✔✔Sodium Bicarbonate
✔✔Calcium hardness of a pool should be between - ✔✔200 and 400
QUESTIONS SET A+
✔✔The turnover rate is? - ✔✔Time it takes for all the water to go through the filter
system
✔✔Algae forms because of ? - ✔✔Poor circulation
✔✔To remove stains from the pool bottom and walls you need to? - ✔✔Drain and acid
wash the pool
✔✔What does adding chlorine to the pool do? - ✔✔Raises Ph level
✔✔The formula for AREA - ✔✔length x width
✔✔What is the surface area of a pool 50 ft wide and 100 feet long - ✔✔5000 square
feet
✔✔Formula for pool volume - ✔✔length x width x depth x 7.48
✔✔The volume of water in a rectangular pool that is 12 feet wide, 34 feet long and
constant depth of 3 feet - ✔✔9155 gallons
✔✔Circular pool area is? - ✔✔r x 3.14
✔✔For a 15000 gallon pool with an an 8 hour turnover rate the _____ is 31.25 -
✔✔Flow Rate
✔✔CDC states that the number accidents related to swimming - ✔✔140000/year
✔✔The minimum number of ladders in a pool - ✔✔2 ladders
, ✔✔Stairs in a pool must have these - ✔✔Handrails
✔✔When a pool has a deep end of more than 5 feet, it must have these two things: -
✔✔safety line and a slope line mark
✔✔Pools should have both horizontal and vertical depth markers no more than - ✔✔25
feet apart
✔✔The algae that causes the most damage to a pool is - ✔✔Black Algae
✔✔Low chlorine levels will cause ___ in the pool - ✔✔Green Algae
✔✔The person responsible for keeping records at the pool is - ✔✔pool operator
✔✔If the pool is cloudy and you cannot see the main drain, what do you do? - ✔✔Close
the pool to swimmers
✔✔PH should be between ___ and ___ - ✔✔7.2 and 7.8
✔✔To raise pH you add... - ✔✔Soda Ash
✔✔To lower pH you add - ✔✔Muriatic acid
✔✔Chlorine levels should be between ____ and ____ - ✔✔1.0 and 5.0
✔✔Liquid chlorine is named - ✔✔Sodium Hypochlorite
✔✔Powder chlorine is named - ✔✔Calcium Hypochlorite
✔✔Chlorine comes in these forms - ✔✔Liquid, gas, and powder
✔✔Chlorine is added to the pool to - ✔✔Oxidize organic matter
✔✔When you add chlorine to the water it forms - ✔✔Hydrochlorous acid
✔✔Total Alkalinity of a pool should be between ? - ✔✔80 and 120 ppm
✔✔Low alkalinity results in ? - ✔✔Loss of pH control (pH bounce)
✔✔To raise total alkalinity you should add - ✔✔Sodium Bicarbonate
✔✔Calcium hardness of a pool should be between - ✔✔200 and 400
