Pool Operator Exam Correct Questions
& Answers
To be a pool operator you must - ANSWER Complete a pool operator training course
To prevent spinal injury - ANSWER All of the above
The strong suction in the pool (ENTRAPMENT) is the - ANSWER Main Drain
Electrical systems in the pool must have - ANSWER GFIs (Ground Fault Circuit
Interrupters?)
The skimmer _____ prevents floating debris from re-entering the pool - ANSWER WEIR
What is filtration? - ANSWER Physical process of water moving through the system
What is the turnover rate in most jurisdictions? - ANSWER 6 hours
The turnover rate is? - ANSWER Time it takes for all the water to go through the filter
system
Algae forms because of ? - ANSWER Poor circulation
To remove stains from the pool bottom and walls you need to? - ANSWER Drain and
acid wash the pool
What does adding chlorine to the pool do? - ANSWER Raises Ph level
The formula for AREA - ANSWER length x width
What is the surface area of a pool 50 ft wide and 100 feet long - ANSWER 5000 square
feet
Formula for pool volume - ANSWER 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 - ANSWER 9155 gallons
Circular pool area is? - ANSWER r x 3.14
For a 15000 gallon pool with an an 8 hour turnover rate the _____ is 31.25 - ANSWER
Flow Rate
, CDC states that the number accidents related to swimming - ANSWER 140000/year
The minimum number of ladders in a pool - ANSWER 2 ladders
Stairs in a pool must have these - ANSWER Handrails
When a pool has a deep end of more than 5 feet, it must have these two things: -
ANSWER safety line and a slope line mark
Pools should have both horizontal and vertical depth markers no more than - ANSWER
25 feet apart
The algae that causes the most damage to a pool is - ANSWER Black Algae
Low chlorine levels will cause ___ in the pool - ANSWER Green Algae
The person responsible for keeping records at the pool is - ANSWER pool operator
If the pool is cloudy and you cannot see the main drain, what do you do? - ANSWER
Close the pool to swimmers
PH should be between ___ and ___ - ANSWER 7.2 and 7.8
To raise pH you add... - ANSWER Soda Ash
To lower pH you add - ANSWER Muriatic acid
Chlorine levels should be between ____ and ____ - ANSWER 1.0 and 5.0
Liquid chlorine is named - ANSWER Sodium Hypochlorite
Powder chlorine is named - ANSWER Calcium Hypochlorite
Chlorine comes in these forms - ANSWER Liquid, gas, and powder
Chlorine is added to the pool to - ANSWER Oxidize organic matter
When you add chlorine to the water it forms - ANSWER Hydrochlorous acid
Total Alkalinity of a pool should be between ? - ANSWER 80 and 120 ppm
Low alkalinity results in ? - ANSWER Loss of pH control (pH bounce)
To raise total alkalinity you should add - ANSWER Sodium Bicarbonate
Calcium hardness of a pool should be between - ANSWER 200 and 400
& Answers
To be a pool operator you must - ANSWER Complete a pool operator training course
To prevent spinal injury - ANSWER All of the above
The strong suction in the pool (ENTRAPMENT) is the - ANSWER Main Drain
Electrical systems in the pool must have - ANSWER GFIs (Ground Fault Circuit
Interrupters?)
The skimmer _____ prevents floating debris from re-entering the pool - ANSWER WEIR
What is filtration? - ANSWER Physical process of water moving through the system
What is the turnover rate in most jurisdictions? - ANSWER 6 hours
The turnover rate is? - ANSWER Time it takes for all the water to go through the filter
system
Algae forms because of ? - ANSWER Poor circulation
To remove stains from the pool bottom and walls you need to? - ANSWER Drain and
acid wash the pool
What does adding chlorine to the pool do? - ANSWER Raises Ph level
The formula for AREA - ANSWER length x width
What is the surface area of a pool 50 ft wide and 100 feet long - ANSWER 5000 square
feet
Formula for pool volume - ANSWER 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 - ANSWER 9155 gallons
Circular pool area is? - ANSWER r x 3.14
For a 15000 gallon pool with an an 8 hour turnover rate the _____ is 31.25 - ANSWER
Flow Rate
, CDC states that the number accidents related to swimming - ANSWER 140000/year
The minimum number of ladders in a pool - ANSWER 2 ladders
Stairs in a pool must have these - ANSWER Handrails
When a pool has a deep end of more than 5 feet, it must have these two things: -
ANSWER safety line and a slope line mark
Pools should have both horizontal and vertical depth markers no more than - ANSWER
25 feet apart
The algae that causes the most damage to a pool is - ANSWER Black Algae
Low chlorine levels will cause ___ in the pool - ANSWER Green Algae
The person responsible for keeping records at the pool is - ANSWER pool operator
If the pool is cloudy and you cannot see the main drain, what do you do? - ANSWER
Close the pool to swimmers
PH should be between ___ and ___ - ANSWER 7.2 and 7.8
To raise pH you add... - ANSWER Soda Ash
To lower pH you add - ANSWER Muriatic acid
Chlorine levels should be between ____ and ____ - ANSWER 1.0 and 5.0
Liquid chlorine is named - ANSWER Sodium Hypochlorite
Powder chlorine is named - ANSWER Calcium Hypochlorite
Chlorine comes in these forms - ANSWER Liquid, gas, and powder
Chlorine is added to the pool to - ANSWER Oxidize organic matter
When you add chlorine to the water it forms - ANSWER Hydrochlorous acid
Total Alkalinity of a pool should be between ? - ANSWER 80 and 120 ppm
Low alkalinity results in ? - ANSWER Loss of pH control (pH bounce)
To raise total alkalinity you should add - ANSWER Sodium Bicarbonate
Calcium hardness of a pool should be between - ANSWER 200 and 400
