Pool Operator Exam Questions And
Answers 100% Guaranteed Success.
whole range chlorine in a pool: ____ to _____ - correct answer.1, 5
ideal range chlorine in a pool: ____ to _____ - correct answer.2, 4
whole range chlorine in a spa: ____ to _____ - correct answer.2, 10
ideal range chlorine in a spa: ____ to _____ - correct answer.3, 5
4 types of solid chlorine - correct answer.calcium hypochlorite, lithium hypochlorite,
trichlor, dichlor
liquid chlorine - correct answer.sodium hypochlorite (NaOCl)
how active is gas chlorine - correct answer.100%
the active killing form of chlorine in water - correct answer.hypochlorous acid (HOCl)
HOCl = ______ - correct answer.H+ (hydrogen ion) + OCl- (hypochlorite ion)
most common granular chlorine (pH range) - correct answer.calcium hypochlorite (8.5 -
11, used to super chlorinate water)
not common form of chlorine due to low active strength (pH) - correct answer.lithium
hypochlorite (10.8)
tablet/stick chlorine usually used in erosion feeder (pH - what will it do?) - correct
answer.trichlor (2.8 - 3.5, lower alkalinity and pH over time)
salt used as a disinfectant (pH) - correct answer.dichlor (6.7 - common in vinyl lined
pools)
most common type of chlorine used (pH) - correct answer.sodium hypochlorite (NaOCl
- 13)
______ needs special training to use and has a pH of ____ and will _____ when added
to water - correct answer.gas chlorine, 0, lower pH
chlorine is most effective as a pH of _____ - correct answer.7.5
, active disinfectant in the water - correct answer.free chlorine (FC)
FC is determined by the ______ test and is maintained between ____ and ____ ppm -
correct answer.DPD, 2, 4
equal to the amount of hypochlorous acid (HOCl) and the amt of hypochlorite ions (OCl-
) - correct answer.free chlorine (fc)
the result of free chlorine reacting with organic compounds - correct answer.combine
chlorine (CC)
common name and max for pools and spas for combine chlorine - correct
answer.chloramines, 0.2, 0.5
CC = - correct answer.TC - FC
what will a DPD measure - correct answer.TC, FC
how much CC should a pool have ideally - correct answer.zero
shocking the pool is also called - correct answer.breakpoint chlorination
breakpoint chlorination is the conversion of ________ into ______ - correct
answer.combine chlorine, nitrogen gas
breakpoint chlorination equation - correct answer.BPC = 10 x CC [BPC = 10 x (TC -
FC)]
whole cyanuric acid range: _____ to ______ppm - correct answer.0, 100
ideal cyanuric acid range: _____ to ______ ppm - correct answer.30, 50
acts as a protection for chlorine compounds from UV light - correct answer.cyanuric
acid
CyA will act as a stabilizer for _______ but does not
stabilize ________ - correct answer.free chlorine, bromine
The only way to reduce CyA concentration is to _______ - correct answer.dilute the
water and replace it
whole range of bromine: ____ to _____ - correct answer.2, 10
ideal range of bromine: _____ to ______ - correct answer.4, 6
Answers 100% Guaranteed Success.
whole range chlorine in a pool: ____ to _____ - correct answer.1, 5
ideal range chlorine in a pool: ____ to _____ - correct answer.2, 4
whole range chlorine in a spa: ____ to _____ - correct answer.2, 10
ideal range chlorine in a spa: ____ to _____ - correct answer.3, 5
4 types of solid chlorine - correct answer.calcium hypochlorite, lithium hypochlorite,
trichlor, dichlor
liquid chlorine - correct answer.sodium hypochlorite (NaOCl)
how active is gas chlorine - correct answer.100%
the active killing form of chlorine in water - correct answer.hypochlorous acid (HOCl)
HOCl = ______ - correct answer.H+ (hydrogen ion) + OCl- (hypochlorite ion)
most common granular chlorine (pH range) - correct answer.calcium hypochlorite (8.5 -
11, used to super chlorinate water)
not common form of chlorine due to low active strength (pH) - correct answer.lithium
hypochlorite (10.8)
tablet/stick chlorine usually used in erosion feeder (pH - what will it do?) - correct
answer.trichlor (2.8 - 3.5, lower alkalinity and pH over time)
salt used as a disinfectant (pH) - correct answer.dichlor (6.7 - common in vinyl lined
pools)
most common type of chlorine used (pH) - correct answer.sodium hypochlorite (NaOCl
- 13)
______ needs special training to use and has a pH of ____ and will _____ when added
to water - correct answer.gas chlorine, 0, lower pH
chlorine is most effective as a pH of _____ - correct answer.7.5
, active disinfectant in the water - correct answer.free chlorine (FC)
FC is determined by the ______ test and is maintained between ____ and ____ ppm -
correct answer.DPD, 2, 4
equal to the amount of hypochlorous acid (HOCl) and the amt of hypochlorite ions (OCl-
) - correct answer.free chlorine (fc)
the result of free chlorine reacting with organic compounds - correct answer.combine
chlorine (CC)
common name and max for pools and spas for combine chlorine - correct
answer.chloramines, 0.2, 0.5
CC = - correct answer.TC - FC
what will a DPD measure - correct answer.TC, FC
how much CC should a pool have ideally - correct answer.zero
shocking the pool is also called - correct answer.breakpoint chlorination
breakpoint chlorination is the conversion of ________ into ______ - correct
answer.combine chlorine, nitrogen gas
breakpoint chlorination equation - correct answer.BPC = 10 x CC [BPC = 10 x (TC -
FC)]
whole cyanuric acid range: _____ to ______ppm - correct answer.0, 100
ideal cyanuric acid range: _____ to ______ ppm - correct answer.30, 50
acts as a protection for chlorine compounds from UV light - correct answer.cyanuric
acid
CyA will act as a stabilizer for _______ but does not
stabilize ________ - correct answer.free chlorine, bromine
The only way to reduce CyA concentration is to _______ - correct answer.dilute the
water and replace it
whole range of bromine: ____ to _____ - correct answer.2, 10
ideal range of bromine: _____ to ______ - correct answer.4, 6
