POOL OPERATOR EXAM 2023 -2024 ACTUAL EXAM 200
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |AGRADE
bromine is sometimes used as a disinfectant because - ANSWER- 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 - ANSWER- ansi/nspa standard 5
a pool should be free from - ANSWER- floating debris, sediment and dirt, algae
a shepherds hook must be attached to a - ANSWER- 16 foot one piece pole
filtration is - ANSWER- the process of removing suspend particles form the water
the volume of water going through filter system is measured - ANSWER- 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 - ANSWER- 156.25 gallons per minute
microorganisms can be shielded from disinfectants if they are in suspended particles. this situation is caused by - ANSWER- high turbidity levels
the chemical name for dry chlorine is - ANSWER- calcium hypochlorite
adding liquid or dry chlorine to the pool water has the following effects on ph - ANSWER- will raise the ph
alkalinity of swimming pool water is recommended to be maintained at - ANSWER- 80-140 ppm
chlorine is used in pool water to not only kill germs but to - ANSWER- oxidize organic matter
to becoming a certified pool operator a person must - ANSWER- successfully complete training course in pool operations approved by local jurisdictions
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handrails should be anchored into the - ANSWER- pool deck and bottom step
an aid in removing small particles from the pool water is - ANSWER- a flocculent
to clean a cartridge filter - ANSWER- 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 - ANSWER- turnover rate
stains on the interior pool surfaces are usually caused by - ANSWER- copper manganese iron
the chemical name for liquid chlorine is - ANSWER- sodium hypochlorite
the recommend range to maintain ph is - ANSWER- 7.2-7.8
to raise the alkalinity level in swimming pool water what chemical is added - ANSWER- sodium bicarbonate
chloramines are - ANSWER- a combination of chlorine and ammonia in pool water
accodoring to statistics from cdc how many water-related injuries are annually associated with swimming activities - ANSWER- 140000
cloudy water may be caused by - ANSWER- filter malfunction, excessive bather load, chemical imbalance of pool water
in most jurisdictions the turnover time for a swimming pool is - ANSWER- every
- hours
which type of algae inmost difficult to control in a pool, often requiring chlorination and brushing to eliminate - ANSWER- black algae
the recommend level of free chlorine in the swimming pool water is - ANSWER- 1-5ppm
to lower the ph add - ANSWER- muriatic acid
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