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LATEST UPDATE / CPO Exam 2024/2025 QUESTIONS AND ANSWERS ALREADY
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This encompasses the questions that are most frequently tested on the CPO exam
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By: maacevedo80 • 4 months ago
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CERTIFIED POOL OPERATOR EXAM2023 QUESTIONS AND ANSWERS
ALREADY PASSED AND GRADED A+
Primary job of pool operator - CORRECT ANS Ensure compliance with local code
and laws
Provide safe ad clean environment for guests
Make sure equipment is properly working
RWI stands for - CORRECT ANS Recreational Water illness
How are recreational water illnesses spread - CORRECT ANS Swallowing water
Breathing in mists
Coming in contact with contaminated water
Recreational Water Illness - CORRECT ANS illness caused by microorganisms
and chloramines in water
common illness caused by chloramines - CORRECT ANS Breathing disorder
called swimmers asthma
examples of microorganisms that can make you sick in pools - CORRECT ANS
Pseudomonas aeruginosa
E.coli
Staph
Crypto
interior walls of pool - CORRECT ANS pool plaster or white coat
what do pool pumps do? - CORRECT ANS They poll water form the pool main
drains and skimmers
pool main drain - CORRECT ANS point of strongest suction in the pool
Reasons to close pool immediately - CORRECT ANS Main drain cover is broken
or missing
Main drain is not visible due to cloudy water
pool telephone not working
Skimmers - CORRECT ANS water from surface passes through skimmers and
debris get trapped in skimmer basket
Skimmer Weir - CORRECT ANS prevents floating debris from reentering the pool
where does water go after going through the pump? - CORRECT ANS filter
where does water go after the filter? - CORRECT ANS heater
where does water go after heater? - CORRECT ANS flow meter
where does water go after going through flow meter? - CORRECT ANS back to
the pool through the return lines
Flow of pool water steps - CORRECT ANS 1.main drains and skimmers/skimmer
basket
2.pipes and strainer basket
3. pump
4.filter
5.heater
6.flow meter
7. back to pool through return lines
what does it mean if bubbles are coming from return line? - CORRECT ANS Air is
coming form somewhere. Check the skimmer strainer basket lid and gasket
Flow meter - CORRECT ANS measures the amount of water passing through
pipes
Flow meter measurement unit - CORRECT ANS Gallons per minutes GPM
, CERTIFIED POOL OPERATOR EXAM
2023 QUESTIONS AND ANSWERS
ALREADY PASSED AND GRADED A+
what does it mean if flow meter is showing lower flow than is should? - CORRECT
ANS Usually means the filter needs to be cleaned or there is too much debris in the
strainer basket or skimmer basket
3 Types of Filters - CORRECT ANS 1. Sand Filter
2. Cartridge Filter
3. D.E. Filter
Filtration - CORRECT ANS the physical process of removing suspended particles
form pool water
how to clean cartridge filter - CORRECT ANS soak cartridge in degreaser and
hose off
how to clean a sand filter - CORRECT ANS backwash
Backwash - CORRECT ANS the process of reverse flow of water through the
sand filter to remove accumulated particles
when to backwash - CORRECT ANS when sand filter pressure gauge is higher
than usual (spa 8-10 or higher)
when can you stop backwashing - CORRECT ANS when water in sight glass
appears to be clear
how often should in a sand filter be replaced - CORRECT ANS every 3-5 years
Channeling - CORRECT ANS a damaging condition that occurs over time in sand
filters. When sand becomes hard, water goes around sand and unfiltered water
returns to the pool
most efficient type of filter and why - CORRECT ANS D.E. filter because it can
trap particles up to 3-5 microns
what happens when dirt accumulates in a filter? - CORRECT ANS the amount of
water that can pass through the filter decreases
Labels and Postings - CORRECT ANS Valves and pumps in the pump room must
be labeled and operating instructions must be posted.
Pool turnover rate - CORRECT ANS the amount of time that it takes all of the
water in the pool to pass though the filter
3 Types of Pool Algae - CORRECT ANS Green, Black, Mustard
Reasons algae forms in pools - CORRECT ANS bad water circulation
low chlorine level
high pH level
poor maintenance
Black Algae - CORRECT ANS can penetrate and damage pool plaster
Green Algae - CORRECT ANS primary type of algae found in poorly maintained
pools
Algecide - CORRECT ANS they are designed to be used when your pool is clean
and algae-free and will stop algae spores from developing into full blooms
what is Chlorine used for? - CORRECT ANS sanitizing the water (killing germs)
oxidizing organic matter
Types of chlorine - CORRECT ANS 1.Liquid
2. Powder (granular and tablets)
3. gas
Scientific name for Liquid Chlorine - CORRECT ANS Sodium Hypochlorite
Erosion Chlorinator - CORRECT ANS used for chlorine or bromine tablets
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