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CPO Practice QUESTIONS & ANSWERS 2024 ( A+ GRADED 100% VERIFIED)
CPO Practice QUESTIONS & ANSWERS 2024 ( A+ GRADED 100% VERIFIED)
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CPO Practice Problems QUESTIONS &ANSWERS 2024 ( A+ GRADED 100% VERIFIED)
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 - Correct Answer - 1. 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 - Correct Answer - 2. 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. - Correct Answer - 3. A) 24 hours continuously . The
NSPF® Pool & Spa Operator™ Handbook and most state codes require that pumps run continually for
commercial pools.
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. - Correct Answer - 4. B) Flush with
clean water for 15 minutes If still irritated, continue to flush with clean water until medical personnel
arrives.
, FORMULAS
Surface Area (Circle): Radius x Radius x 3.14 (Radius = Diameter / 2)
Surface Area (Rectangle/Square): Length x Width
Volume (Circle/Rectangle/Square): Surface Area x Average Depth x 7.5
Average Depth: (Shallow Depth + Deep Depth) ÷ 2
(Note: Constant Depth = Average Depth) - Correct Answer -
A rectangular pool is 50 feet long by 20 feet wide. The shallow end is 3 feet deep and the deep end is 7
feet deep. Find the surface area and the volume. - Correct Answer - Surface Area = Length x Width
Surface Area = 50 feet x 20 feet
Surface Area = 1,000 square feet
Volume = Surface Area x Average Depth x 7.5
Volume = 1,000 x Average Depth x 7.5
Average Depth = (Shallow Depth + Deep Depth) ÷ 2
Average Depth = (3 + 7) ÷ 2
Average Depth = 10 ÷ 2
Average Depth = 5
Volume = 1,000 x 5 x 7.5
Volume = 37,500 Gallons
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. - Correct Answer - 1. Surface Area = 1,800 square
feet Volume = 81,000 Gallons
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