Certified Pool Operator Exam
1.whole range chlorine in a pool: to : 1, 5
2.ideal range chlorine in a pool: to : 2, 4
3.whole range chlorine in a spa: to : 2, 10
4.ideal range chlorine in a spa: to : 3, 5
5.4 types of solid chlorine: calcium hypochlorite, lithium hypochlorite,
trichlor, dichlor
6.liquid chlorine: sodium hypochlorite (NaOCl)
7.how active is gas chlorine: 100%
8.the active killing form of chlorine in water: hypochlorous acid (HOCl)
9.HOCl = : H+ (hydrogen ion) + OCl- (hypochlorite ion)
10.most common granular chlorine (pH range): calcium hypochlorite (8.5
- 11, used to super chlorinate water)
11.not common form of chlorine due to low active strength (pH):
lithium hypochlorite (10.8)
12.tablet/stick chlorine usually used in erosion feeder (pH - what will it do?)-
: trichlor (2.8 - 3.5, lower alkalinity and pH over time)
13.salt used as a disinfectant (pH): dichlor (6.7 - common in vinyl lined
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, pools)
14.most common type of chlorine used (pH): sodium hypochlorite (NaOCl -
13)
15. needs special training to use and has a pH of and will
when added to water: gas chlorine, 0, lower pH
16.chlorine is most effective as a pH of______: 7.5
17.active disinfectant in the water: free chlorine (FC)
18.FC is determined by the test and is maintained between and
ppm: DPD, 2, 4
19.equal to the amount of hypochlorous acid (HOCl) and the amt of
hypochlo- rite ions (OCl-): free chlorine (fc)
20.the result of free chlorine reacting with organic compounds: combine
chlo- rine (CC)
21.common name and max for pools and spas for combine chlorine:
chlo- ramines, 0.2, 0.5
22.CC =: TC - FC
23.what will a DPD measure: TC, FC
24.how much CC should a pool have ideally: zero
25.shocking the pool is also called: breakpoint chlorination
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1.whole range chlorine in a pool: to : 1, 5
2.ideal range chlorine in a pool: to : 2, 4
3.whole range chlorine in a spa: to : 2, 10
4.ideal range chlorine in a spa: to : 3, 5
5.4 types of solid chlorine: calcium hypochlorite, lithium hypochlorite,
trichlor, dichlor
6.liquid chlorine: sodium hypochlorite (NaOCl)
7.how active is gas chlorine: 100%
8.the active killing form of chlorine in water: hypochlorous acid (HOCl)
9.HOCl = : H+ (hydrogen ion) + OCl- (hypochlorite ion)
10.most common granular chlorine (pH range): calcium hypochlorite (8.5
- 11, used to super chlorinate water)
11.not common form of chlorine due to low active strength (pH):
lithium hypochlorite (10.8)
12.tablet/stick chlorine usually used in erosion feeder (pH - what will it do?)-
: trichlor (2.8 - 3.5, lower alkalinity and pH over time)
13.salt used as a disinfectant (pH): dichlor (6.7 - common in vinyl lined
1/
13
, pools)
14.most common type of chlorine used (pH): sodium hypochlorite (NaOCl -
13)
15. needs special training to use and has a pH of and will
when added to water: gas chlorine, 0, lower pH
16.chlorine is most effective as a pH of______: 7.5
17.active disinfectant in the water: free chlorine (FC)
18.FC is determined by the test and is maintained between and
ppm: DPD, 2, 4
19.equal to the amount of hypochlorous acid (HOCl) and the amt of
hypochlo- rite ions (OCl-): free chlorine (fc)
20.the result of free chlorine reacting with organic compounds: combine
chlo- rine (CC)
21.common name and max for pools and spas for combine chlorine:
chlo- ramines, 0.2, 0.5
22.CC =: TC - FC
23.what will a DPD measure: TC, FC
24.how much CC should a pool have ideally: zero
25.shocking the pool is also called: breakpoint chlorination
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