Pool Operator Exam
_____ deteriorates quick into exposed air - ANS-sodium hypochlorite
_____ will affect overall alkalinity - ANS-cyanuric acid
______ needs special schooling to apply and has a pH of ____ and will _____ whilst delivered
to water - ANS-gas chlorine, 0, lower pH
__________ is just like hypochlorous acid - ANS-hypobromous acid
4 forms of solid chlorine - ANS-calcium hypochlorite, lithium hypochlorite, trichlor, dichlor
proper range of unfastened chlorine in a pool: ____ to ____ppm - ANS-1, three
active disinfectant inside the water - ANS-unfastened chlorine (FC)
acts as a pH buffer - ANS-general alkalinity
acts as a safety for chlorine compounds from UV mild - ANS-cyanuric acid
algae resulting from negative pool flow - ANS-black
algae that is difficult to manipulate and frequently requires_____ - ANS-yellow, algaecide
constantly add _____ to ______ - ANS-chemical, water
amount of calcium content within the water - ANS-calcium hardness
are cartridge filters backwashed? - ANS-no (removed and hosed off)
are sand filters backwashed? - ANS-sure
As dirt and debris accumulate in a sand filter out the ______ strain will increase and the
_______ pressure decreases - ANS-influent, effluent
at higher temps, there's an accelerated tendency for _____ - ANS-scaling
at decrease temperatures, there may be an improved tendency for ______ - ANS-corrosion
common turnover fee for a spa - ANS-half-hour
, common turnover rate for a swimming pool - ANS-6 hours
average turnover charge for a wading pool - ANS-1 - 2 hours
breakpoint chlorination equation - ANS-BPC = 10 x CC [BPC = 10 x (TC - FC)]
Breakpoint chlorination is an effective method to reduce ________ which cause _______ -
ANS-inorganic chloramines, chlorine scent
breakpoint chlorination is the conversion of ________ into ______ - ANS-integrate chlorine,
nitrogen gasoline
brighter, purple shade indicates ______ pH - ANS-high
Bromine in natural form is a ______ however is in _____ shape whilst
introduced to pools - ANS-reddish brown liquid, strong
bromine releases _____ and _____ while delivered to water - ANS-hypobromite ion, hydrogen
ion
bromine will ______ pH while added to water - ANS-decrease
calcium hardness is laid low with _______ - ANS-temperature
calcium hardness is measured as ______ - ANS-calcium carbonate (CaCO3)
calcium not in solution (as a stable) is called _____ - ANS-scale
cause of foaming - ANS-organic waste
CC = - ANS-TC - FC
channeling in a filter causes - ANS-a pass inside the filtration manner, inflicting unfiltered water
again into the pool
chemicals used to neutralize chlorine (2) - ANS-sodium thiosulfate, sodium sulfite
chlorine is handiest as a pH of _____ - ANS-7.5
common call and max for swimming pools and spas for combine chlorine - ANS-chloramines,
zero.2, zero.Five
CyA will act as a stabilizer for _______ however does now not
_____ deteriorates quick into exposed air - ANS-sodium hypochlorite
_____ will affect overall alkalinity - ANS-cyanuric acid
______ needs special schooling to apply and has a pH of ____ and will _____ whilst delivered
to water - ANS-gas chlorine, 0, lower pH
__________ is just like hypochlorous acid - ANS-hypobromous acid
4 forms of solid chlorine - ANS-calcium hypochlorite, lithium hypochlorite, trichlor, dichlor
proper range of unfastened chlorine in a pool: ____ to ____ppm - ANS-1, three
active disinfectant inside the water - ANS-unfastened chlorine (FC)
acts as a pH buffer - ANS-general alkalinity
acts as a safety for chlorine compounds from UV mild - ANS-cyanuric acid
algae resulting from negative pool flow - ANS-black
algae that is difficult to manipulate and frequently requires_____ - ANS-yellow, algaecide
constantly add _____ to ______ - ANS-chemical, water
amount of calcium content within the water - ANS-calcium hardness
are cartridge filters backwashed? - ANS-no (removed and hosed off)
are sand filters backwashed? - ANS-sure
As dirt and debris accumulate in a sand filter out the ______ strain will increase and the
_______ pressure decreases - ANS-influent, effluent
at higher temps, there's an accelerated tendency for _____ - ANS-scaling
at decrease temperatures, there may be an improved tendency for ______ - ANS-corrosion
common turnover fee for a spa - ANS-half-hour
, common turnover rate for a swimming pool - ANS-6 hours
average turnover charge for a wading pool - ANS-1 - 2 hours
breakpoint chlorination equation - ANS-BPC = 10 x CC [BPC = 10 x (TC - FC)]
Breakpoint chlorination is an effective method to reduce ________ which cause _______ -
ANS-inorganic chloramines, chlorine scent
breakpoint chlorination is the conversion of ________ into ______ - ANS-integrate chlorine,
nitrogen gasoline
brighter, purple shade indicates ______ pH - ANS-high
Bromine in natural form is a ______ however is in _____ shape whilst
introduced to pools - ANS-reddish brown liquid, strong
bromine releases _____ and _____ while delivered to water - ANS-hypobromite ion, hydrogen
ion
bromine will ______ pH while added to water - ANS-decrease
calcium hardness is laid low with _______ - ANS-temperature
calcium hardness is measured as ______ - ANS-calcium carbonate (CaCO3)
calcium not in solution (as a stable) is called _____ - ANS-scale
cause of foaming - ANS-organic waste
CC = - ANS-TC - FC
channeling in a filter causes - ANS-a pass inside the filtration manner, inflicting unfiltered water
again into the pool
chemicals used to neutralize chlorine (2) - ANS-sodium thiosulfate, sodium sulfite
chlorine is handiest as a pH of _____ - ANS-7.5
common call and max for swimming pools and spas for combine chlorine - ANS-chloramines,
zero.2, zero.Five
CyA will act as a stabilizer for _______ however does now not
