CPO Practice EXAM ( LATEST 2026) || MOST RECENT
EXAM 2026|2027 ACTUAL COMPLETE REAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWER) ALREADY GRADED A+ | GUARANTEED
SUCCES!! NEWEST EXAM | JUST RELEASED!!
You operate a pool which uses high rate sand filters. You
discover that your filter tank has developed a major leak and
must be replaced. Your pool operates with a flow rate of 625
gmp. Using a filter media t=rate (fmr) of 12
gallons per minute, what size sand filter would you need
to replace your
damaged
filter?
(A) 50 sq.
ft. (B) 36
sq. ft.
(C) 38 sq.
ft.
(D) 52 sq. ft - ANSWER-(D) 52
sq. ft
What is the best practice to prevent
algae growth?
,(A) Raise the
pH
(B) Routinely brush pool and
spa walls
(C) Increase pool water
temperature
(D) Use UV as a supplement - ANSWER-(B) Routinely brush pool
and spa walls
The presence of galvanic corrosion in water is signaled by:
(A) Discoloration of metal parts submerged in water
(B) TDS level 1,500 ppm higher than make-up water TDS level
(C) Saturation index less than -0.3
(D) Water tinted blue - ANSWER-(A) Discoloration of metal parts
submerged in water
If there is a diarrheal incident in your pool, according to the
Centers for Disease Control and Prevention (CDC), you must
raise the free chlorine level to 20 ppm and keep it there for:
(A) 12.75 hours
(B) 45 minutes
(C) 25.55 hours
(D) 17.00 hours - ANSWER-(A) 12.75 hours
Which chemical could be added to lower the chlorine level in
the water?
(A) Calcium chloride
(B) Sodium thiosulfate
(C) Sodium sesquicarbonate
, (D) Cyanuric Acid - ANSWER-(B) Sodium thiosulfate
At your swimming pool, failure to provide the appropriate
standard of care to the public can lead to a case of:
(A) Negligence
(B) Failure to meet objectives
(C) Performance evaluation
(D) Loss of CPO certification - ANSWER-(A) Negligence
To reduce the possibility of suction entrapment an operator
should:
(A) Use approved main drain covers
(B) Install check valves
(C) Use a flow meter
(D) Use an automatic chemical feeder - ANSWER-(A) Use
approved main drain covers
Cloudy or murky green-tinted pool water is usually an
indication of:
(A) An algae
problem
(B) Dye in
water
(C) The presence of
iron
(D) Scale - ANSWER-(A) An algae
problem
The vacuum gauge is installed:
EXAM 2026|2027 ACTUAL COMPLETE REAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWER) ALREADY GRADED A+ | GUARANTEED
SUCCES!! NEWEST EXAM | JUST RELEASED!!
You operate a pool which uses high rate sand filters. You
discover that your filter tank has developed a major leak and
must be replaced. Your pool operates with a flow rate of 625
gmp. Using a filter media t=rate (fmr) of 12
gallons per minute, what size sand filter would you need
to replace your
damaged
filter?
(A) 50 sq.
ft. (B) 36
sq. ft.
(C) 38 sq.
ft.
(D) 52 sq. ft - ANSWER-(D) 52
sq. ft
What is the best practice to prevent
algae growth?
,(A) Raise the
pH
(B) Routinely brush pool and
spa walls
(C) Increase pool water
temperature
(D) Use UV as a supplement - ANSWER-(B) Routinely brush pool
and spa walls
The presence of galvanic corrosion in water is signaled by:
(A) Discoloration of metal parts submerged in water
(B) TDS level 1,500 ppm higher than make-up water TDS level
(C) Saturation index less than -0.3
(D) Water tinted blue - ANSWER-(A) Discoloration of metal parts
submerged in water
If there is a diarrheal incident in your pool, according to the
Centers for Disease Control and Prevention (CDC), you must
raise the free chlorine level to 20 ppm and keep it there for:
(A) 12.75 hours
(B) 45 minutes
(C) 25.55 hours
(D) 17.00 hours - ANSWER-(A) 12.75 hours
Which chemical could be added to lower the chlorine level in
the water?
(A) Calcium chloride
(B) Sodium thiosulfate
(C) Sodium sesquicarbonate
, (D) Cyanuric Acid - ANSWER-(B) Sodium thiosulfate
At your swimming pool, failure to provide the appropriate
standard of care to the public can lead to a case of:
(A) Negligence
(B) Failure to meet objectives
(C) Performance evaluation
(D) Loss of CPO certification - ANSWER-(A) Negligence
To reduce the possibility of suction entrapment an operator
should:
(A) Use approved main drain covers
(B) Install check valves
(C) Use a flow meter
(D) Use an automatic chemical feeder - ANSWER-(A) Use
approved main drain covers
Cloudy or murky green-tinted pool water is usually an
indication of:
(A) An algae
problem
(B) Dye in
water
(C) The presence of
iron
(D) Scale - ANSWER-(A) An algae
problem
The vacuum gauge is installed:
