CPO PRACTICE EXAM WITH 100% RATED CORRECT REAL EXAM
QUESTIONS AND CORRECT ANSWERS| GRADED A+ |2025 LATEST
VERSION | 100% VERIFIED
What is the ideal range for pH? - (answer)7.4-7.6
How often should you clean or backwash your filter? - (answer)When the pressure gauge reads 8
to 10 psi above the clean starting pressure
What should the pump lid o-ring should be lubricated with? - (answer)A silicone or Teflon based
lubricant
What is the best method of algae prevention? - (answer)Brushing the pool walls and floor on a
regular basis
Which chemical is used to raise the total alkalinity? - (answer)Baking Soda (Sodium
Bicarbonate)
Which is an important step in preparation for a major storm? - (answer)Raise your chlorine level
and make sure your chemistry is in balance
Water dripping from where the motor attaches to the pump is an indication of what? -
(answer)Pump seal failure
If you did not winterize your pool, what is the best method of preventing equipment damage
during the threat of a hard freeze? - (answer)Run your pool pump during the hours of the hard
freeze
,What is the correct level for the water in the pool? - (answer)Fill pool to mid-point of the
skimmer
What is the effect of aiming the return jets towards the surface? - (answer)Turbulence will
increase pH
How is a saltwater pool sanitized? - (answer)It produces chlorine through a process called
electrolysis
What does it mean when a pool has "that chlorine smell"? - (answer)The pool probably needs
more chlorine - might be time to shock
What day is National Swimming Pool day? - (answer)July 11th
What does muriatic acid disassociate into when added to water? - (answer)H & Cl- (Hydrogen &
Chloride)
Which of the following is something you should NEVER do? - (answer)All of the Above
(Drinking Pool Water, Peeing in the pool, and swimming when experiencing diaghorea
stablishing a Borate level in a swimming pool will - (answer)Buffer Against an Upward Drift in
pH
Bromine is - (answer)A Better Algaecide Than Chlorine when Cyanuric Acid is in use
What is the Best lubricant for the Viton chlorinator lid O-ring? - (answer)Ivory Bar Soap
What is wrong with the pool in the picture? (Brownish Red) - (answer)High iron level
,Cloudy Water Can Contribute to - (answer)The risk of drowning
What should you do before adding sand to a sand filter? - (answer)Fill the tank halfway with
water to deaden the impact of the sand on the laterals
What is wrong with the pool in the picture? (Greenish-Blue Color) - (answer)High copper level
What type of Candy Bar did Bill Murray's character Carl Spackler pull from the swimming pool
in the movie Caddyshack? - (answer)Baby Ruth
Which of the following statements about black algae is true? - (answer)Black algae is really
cyanobacteria
What is wrong with the pool in the picture? (Its Purple) - (answer)High level of manganesepH
level must be between _____ and _____. - (answer)7.2 and 7.8
Water temp of a heated pool does not exceed _______. - (answer)90 degrees F
Water temp of a spa does not exceed ______. - (answer)104 degrees F
How many times is it required for the CPO to test the water der day? - (answer)At least once
How many hours a day must the pump operate? - (answer)24 hours
How long must a pole with body hook be? - (answer)12 ft
, How many days do you have to report a death, serious injury or complaint of illness caused by
your swimming pool? - (answer)2 days
The CPO certificate is valid for how long? - (answer)5 years
Two daily readings and recordings of the disinfectant residuals and pH levels shall be taken a
minimum of how many hours apart? - (answer)6
The CPO must complete a ________ provided by the Department of Environmental Services
daily. - (answer)checklist
The highest level of free chlorine allowed in pools is ______ - (answer)10ppm
A pool shall be closed for: - (answer)algae, bacteria, fecal material, no presence of disinfectant
If fecal contaminati9on occurs in a wading pool or spa you should
_____________________________. - (answer)Drain and disinfect it
The height of any opening under the bottom of the enclosure shall not exceed _______ inches. -
(answer)4
T/F Bathrooms shall be provided at all pools adjacent to the pool deck. - (answer)True
T/F Chemicals shall be stored in a dry, weatherproof enclosure separate from the enclosure
provided for pumps and other electrical equipment. This room shall be used from chemical
storage only. - (answer)True
QUESTIONS AND CORRECT ANSWERS| GRADED A+ |2025 LATEST
VERSION | 100% VERIFIED
What is the ideal range for pH? - (answer)7.4-7.6
How often should you clean or backwash your filter? - (answer)When the pressure gauge reads 8
to 10 psi above the clean starting pressure
What should the pump lid o-ring should be lubricated with? - (answer)A silicone or Teflon based
lubricant
What is the best method of algae prevention? - (answer)Brushing the pool walls and floor on a
regular basis
Which chemical is used to raise the total alkalinity? - (answer)Baking Soda (Sodium
Bicarbonate)
Which is an important step in preparation for a major storm? - (answer)Raise your chlorine level
and make sure your chemistry is in balance
Water dripping from where the motor attaches to the pump is an indication of what? -
(answer)Pump seal failure
If you did not winterize your pool, what is the best method of preventing equipment damage
during the threat of a hard freeze? - (answer)Run your pool pump during the hours of the hard
freeze
,What is the correct level for the water in the pool? - (answer)Fill pool to mid-point of the
skimmer
What is the effect of aiming the return jets towards the surface? - (answer)Turbulence will
increase pH
How is a saltwater pool sanitized? - (answer)It produces chlorine through a process called
electrolysis
What does it mean when a pool has "that chlorine smell"? - (answer)The pool probably needs
more chlorine - might be time to shock
What day is National Swimming Pool day? - (answer)July 11th
What does muriatic acid disassociate into when added to water? - (answer)H & Cl- (Hydrogen &
Chloride)
Which of the following is something you should NEVER do? - (answer)All of the Above
(Drinking Pool Water, Peeing in the pool, and swimming when experiencing diaghorea
stablishing a Borate level in a swimming pool will - (answer)Buffer Against an Upward Drift in
pH
Bromine is - (answer)A Better Algaecide Than Chlorine when Cyanuric Acid is in use
What is the Best lubricant for the Viton chlorinator lid O-ring? - (answer)Ivory Bar Soap
What is wrong with the pool in the picture? (Brownish Red) - (answer)High iron level
,Cloudy Water Can Contribute to - (answer)The risk of drowning
What should you do before adding sand to a sand filter? - (answer)Fill the tank halfway with
water to deaden the impact of the sand on the laterals
What is wrong with the pool in the picture? (Greenish-Blue Color) - (answer)High copper level
What type of Candy Bar did Bill Murray's character Carl Spackler pull from the swimming pool
in the movie Caddyshack? - (answer)Baby Ruth
Which of the following statements about black algae is true? - (answer)Black algae is really
cyanobacteria
What is wrong with the pool in the picture? (Its Purple) - (answer)High level of manganesepH
level must be between _____ and _____. - (answer)7.2 and 7.8
Water temp of a heated pool does not exceed _______. - (answer)90 degrees F
Water temp of a spa does not exceed ______. - (answer)104 degrees F
How many times is it required for the CPO to test the water der day? - (answer)At least once
How many hours a day must the pump operate? - (answer)24 hours
How long must a pole with body hook be? - (answer)12 ft
, How many days do you have to report a death, serious injury or complaint of illness caused by
your swimming pool? - (answer)2 days
The CPO certificate is valid for how long? - (answer)5 years
Two daily readings and recordings of the disinfectant residuals and pH levels shall be taken a
minimum of how many hours apart? - (answer)6
The CPO must complete a ________ provided by the Department of Environmental Services
daily. - (answer)checklist
The highest level of free chlorine allowed in pools is ______ - (answer)10ppm
A pool shall be closed for: - (answer)algae, bacteria, fecal material, no presence of disinfectant
If fecal contaminati9on occurs in a wading pool or spa you should
_____________________________. - (answer)Drain and disinfect it
The height of any opening under the bottom of the enclosure shall not exceed _______ inches. -
(answer)4
T/F Bathrooms shall be provided at all pools adjacent to the pool deck. - (answer)True
T/F Chemicals shall be stored in a dry, weatherproof enclosure separate from the enclosure
provided for pumps and other electrical equipment. This room shall be used from chemical
storage only. - (answer)True
