CPO PRACTICE PROBLEMS EXAM
QUESTIONS WITH DETAILED ANSWERS
, 1. The three most commonly used filter media are:
A) Sand, Alum & Floc B) TV, Radio & Newspaper
C) Sand, D. E., & Cartridge D) Calcium, Iron & Copper - ANSWER1. The three most
commonly used filter media are:
1. C) Sand, D. E., & Cartridge Although many filter media alternatives are now being
used, these are by far, the most commonly used.
2. Calcium Hardness should be ideally maintained between:
A) 0 - 100 ppm B) 80 - 120 ppm
C) 1.0 - 3.0 ppm D) 200 - 400 ppm - ANSWER2. D) 200 - 400 ppm is the ideal range for
Calcium Hardness. An acceptable range varies between 100-150 on the low end, up to
500 or even 1000+ in some cases.
3. Spa filtration and recirculation pumps should operate:
A) 24 hours continuously. B) 12 hours at a time.
C) Only when in use. D) In 30 minute intervals. - ANSWER3. A) 24 hours continuously .
The NSPF® Pool & Spa Operator™ Handbook and most state codes require that
pumps run continually for commercial pools.
1) A rectangular pool is 60 feet long by 30 feet wide. The shallow end is 4 feet deep and
the deep end is 8 feet deep. Find the surface area and the volume. - ANSWER1.
Surface Area = 1,800 square feet Volume = 81,000 Gallons
2) A circular spa has a 10 foot diameter and a constant depth of 4 feet deep. Find the
surface area and the volume. - ANSWER2. Surface Area = 78.5 square feet Volume =
2,355 Gallons
3. A rectangular pool has a swimming area and a diving well. The swimming area is 75
feet long by 25 feet wide and is 3 feet deep to 5 feet deep. The diving well is 25 feet
long by 25 feet wide and has a constant depth of 10 feet deep. Find the total volume.
(Hint: Split the pools, then find the volume of each and add totals.) - ANSWER3. Total
Volume = 103,125 Gallons
4. If chlorine gets on your skin or in your eyes, you should:
A) Attempt to neutralize it with another chemical.
B) Flush with clean water for 15 minutes.
C) Wash it off with soap and water.
D) Jump in the pool and stay underwater till rescue squad arrives. - ANSWER4. B)
Flush with clean water for 15 minutes If still irritated, continue to flush with clean water
until medical personnel arrives.
FORMULAS
QUESTIONS WITH DETAILED ANSWERS
, 1. The three most commonly used filter media are:
A) Sand, Alum & Floc B) TV, Radio & Newspaper
C) Sand, D. E., & Cartridge D) Calcium, Iron & Copper - ANSWER1. The three most
commonly used filter media are:
1. C) Sand, D. E., & Cartridge Although many filter media alternatives are now being
used, these are by far, the most commonly used.
2. Calcium Hardness should be ideally maintained between:
A) 0 - 100 ppm B) 80 - 120 ppm
C) 1.0 - 3.0 ppm D) 200 - 400 ppm - ANSWER2. D) 200 - 400 ppm is the ideal range for
Calcium Hardness. An acceptable range varies between 100-150 on the low end, up to
500 or even 1000+ in some cases.
3. Spa filtration and recirculation pumps should operate:
A) 24 hours continuously. B) 12 hours at a time.
C) Only when in use. D) In 30 minute intervals. - ANSWER3. A) 24 hours continuously .
The NSPF® Pool & Spa Operator™ Handbook and most state codes require that
pumps run continually for commercial pools.
1) A rectangular pool is 60 feet long by 30 feet wide. The shallow end is 4 feet deep and
the deep end is 8 feet deep. Find the surface area and the volume. - ANSWER1.
Surface Area = 1,800 square feet Volume = 81,000 Gallons
2) A circular spa has a 10 foot diameter and a constant depth of 4 feet deep. Find the
surface area and the volume. - ANSWER2. Surface Area = 78.5 square feet Volume =
2,355 Gallons
3. A rectangular pool has a swimming area and a diving well. The swimming area is 75
feet long by 25 feet wide and is 3 feet deep to 5 feet deep. The diving well is 25 feet
long by 25 feet wide and has a constant depth of 10 feet deep. Find the total volume.
(Hint: Split the pools, then find the volume of each and add totals.) - ANSWER3. Total
Volume = 103,125 Gallons
4. If chlorine gets on your skin or in your eyes, you should:
A) Attempt to neutralize it with another chemical.
B) Flush with clean water for 15 minutes.
C) Wash it off with soap and water.
D) Jump in the pool and stay underwater till rescue squad arrives. - ANSWER4. B)
Flush with clean water for 15 minutes If still irritated, continue to flush with clean water
until medical personnel arrives.
FORMULAS
