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Exam (elaborations)

POOL OPERATOR EXAM QUETSTIONS WITH COMPLETE ANSWERS

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  • Course
  • CPO certified pool operator
  • Institution
  • CPO Certified Pool Operator

POOL OPERATOR EXAM QUETSTIONS WITH COMPLETE ANSWERS

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  • September 28, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CPO certified pool operator
  • CPO certified pool operator
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biggdreamer
POOL OPERATOR EXAM QUETSTIONS
WITH COMPLETE ANSWERS
Whole range chlorine in a pool: ____ to _____ - answer-1, 5

Ideal range chlorine in a pool: ____ to _____ - answer-2, 4

Whole range chlorine in a spa: ____ to _____ - answer-2, 10

Ideal range chlorine in a spa: ____ to _____ - answer-3, 5

4 types of solid chlorine - answer-calcium hypochlorite, lithium hypochlorite, trichlor,
dichlor

Liquid chlorine - answer-sodium hypochlorite (naocl)

How active is gas chlorine - answer-100%

The active killing form of chlorine in water - answer-hypochlorous acid (hocl)

Hocl = ______ - answer-h+ (hydrogen ion) + ocl- (hypochlorite ion)

Most common granular chlorine (ph range) - answer-calcium hypochlorite (8.5 - 11,
used to super chlorinate water)

Not common form of chlorine due to low active strength (ph) - answer-lithium
hypochlorite (10.8)

Tablet/stick chlorine usually used in erosion feeder (ph - what will it do?) - answer-
trichlor (2.8 - 3.5, lower alkalinity and ph over time)

Salt used as a disinfectant (ph) - answer-dichlor (6.7 - common in vinyl lined pools)

Most common type of chlorine used (ph) - answer-sodium hypochlorite (naocl - 13)

______ needs special training to use and has a ph of ____ and will _____ when added
to water - answer-gas chlorine, 0, lower ph

Chlorine is most effective as a ph of _____ - answer-7.5

Active disinfectant in the water - answer-free chlorine (fc)

Fc is determined by the ______ test and is maintained between ____ and ____ ppm -
answer-dpd, 2, 4

, Equal to the amount of hypochlorous acid (hocl) and the amt of hypochlorite ions (ocl-) -
answer-free chlorine (fc)

The result of free chlorine reacting with organic compounds - answer-combine chlorine
(cc)

Common name and max for pools and spas for combine chlorine - answer-chloramines,
0.2, 0.5

Cc = - answer-tc - fc

What will a dpd measure - answer-tc, fc

How much cc should a pool have ideally - answer-zero

Shocking the pool is also called - answer-breakpoint chlorination

Breakpoint chlorination is the conversion of ________ into ______ - answer-combine
chlorine, nitrogen gas

Breakpoint chlorination equation - answer-bpc = 10 x cc [bpc = 10 x (tc - fc)]

Whole cyanuric acid range: _____ to ______ppm - answer-0, 100

Ideal cyanuric acid range: _____ to ______ ppm - answer-30, 50

Acts as a protection for chlorine compounds from uv light - answer-cyanuric acid

Cya will act as a stabilizer for _______ but does not
Stabilize ________ - answer-free chlorine, bromine

The only way to reduce cya concentration is to _______ - answer-dilute the water and
replace it

Whole range of bromine: ____ to _____ - answer-2, 10

Ideal range of bromine: _____ to ______ - answer-4, 6

Second most common disinfectant in the pool - answer-bromine

Two types of bromine used - answer-sodium bromide, solid bromide

Bromine in natural form is a ______ but is in _____ form when
Added to pools - answer-reddish brown liquid, solid

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