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QUESTIONS AND ANSWERS FOR CPO TEST EXAM 2023 EDITION A+ GRADED $12.99   Add to cart

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QUESTIONS AND ANSWERS FOR CPO TEST EXAM 2023 EDITION A+ GRADED

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QUESTIONS AND ANSWERS FOR CPO TEST EXAM 2023 EDITION A+ GRADED to lower pH add: - CORRECT ANSWER-muriatic acid carbon dioxide to increase pH add: - CORRECT ANSWER-sodium carbonate sodium hydroxide sodium sesquicarbonate the acceptable pH range is: a) 6.8-7.0 b) 7.2-7.8 c) 7.0-7.4 d) non...

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  • September 16, 2023
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  • 2023/2024
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QUESTIONS AND ANSWERS FOR CPO
TEST EXAM 2023 EDITION A+ GRADED
to lower pH add: - CORRECT ANSWER-muriatic acid
carbon dioxide

to increase pH add: - CORRECT ANSWER-sodium carbonate
sodium hydroxide
sodium sesquicarbonate

the acceptable pH range is:
a) 6.8-7.0
b) 7.2-7.8
c) 7.0-7.4
d) none of the above - CORRECT ANSWER-b) 7.2-7.8

the ideal pH range is:
a) 7.4-7.6
b) 7.8-8.0
c) 6.8-7.4 - CORRECT ANSWER-a) 7.4-7.6

free chlorine is a(n):
a) oxidizer
b) stabilizer
c) active disinfectant - CORRECT ANSWER-c) active disinfectant

it is common practice to maintain free chlorine at:
a) 1.0-2.0 ppm
b) 2.0-4.0 ppm
c) 5.0-7.0 ppm - CORRECT ANSWER-b) 2.0-4.0 ppm

what is the maximum free chlorine that should be used?
a) 6.0 ppm
b) 1.0 ppm
c) 5.0 ppm - CORRECT ANSWER-c) 5.0 ppm

combined chlorine is NOT an effective:
a) oxidizer
b) stabilizer
c) disinfectant - CORRECT ANSWER-c) disinfectant

hypochlorous acid is a(n):

, a) oxidizer
b) stabilizer
c) disinfectant
d) both A and C - CORRECT ANSWER-d) both A and C

the maximum combined chlorine allowed in a pool is:
a) 0.5 ppm
b) 0.7 ppm
c) 0.1 ppm
d) 0.2 ppm - CORRECT ANSWER-d) 0.2 ppm

available chlorine content is a comparison of the relative amount of ________ released
into water for different disinfectants. - CORRECT ANSWER-chlorine

active chlorine percentage is the percentage by _________ of technical grade active
ingredient in the product. - CORRECT ANSWER-weight

name the unstabilized chlorines/disinfectants - CORRECT ANSWER-sodium
hypochlorite
calcium hypochlorite
lithium hypochlorite
chlorine gas

name the stabilized disinfectants - CORRECT ANSWER-trichlor
dichlor

the CyA level should be maintained between:
a) 30 and 50 ppm
b) 50 and 100 ppm
c) 10 and 20 ppm
d) 10 and 40 ppm - CORRECT ANSWER-a) 30 and 50 ppm

CyA is typically used to: - CORRECT ANSWER-protect chlorine from the effects of UV
light and sunlight

what is the most common method of reducing CyA concentration? - CORRECT
ANSWER-partially drain and replace water with fresh, potable water

CyA stabilized free chlorine but NOT:
a) hypochlorite
b) carbonate
c) bromine - CORRECT ANSWER-c) bromine

hypochlorous acid is a(n):
a) stabilizer
b) oxidizer

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