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
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
6 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 – ANSWER1-5ppm
to lower the ph add – ANSWER- muriatic acid