1 Exam Prep State Pool Contractor Feedback Questions and...

1 Exam Prep – State Swimming Pool Contractor Feedback -1 1

1 Exam Prep

State Pool Contractor Feedback

Questions and Answers

1. What valves are not part of the pool recirculation system?

a. Rotary Valve

b. Butterfly Valve

c. Ball valves

d. Hydrostatic Valves

2. Given the minimum wattage required, how many 200 watt underwater lights are required in a 20’ X 40”

outdoor pool?

a. Two

b. Three

c. Four

d. Five

3. What is the contact wood area that is necessary to form & pour concrete wall 6’ high, 25’ long and 8” thick?

a. 288 sq ft

b. 296 sq ft

c. 144 sq ft

d. 148 sq ft

4. How many board feet of wood would be required to build a partition wall that measures 8’ high x 25’ long

and is 4” thick with one 2x4 sole plate but a double plate at the top? Assume studs placed a 18” O.C.

a. 12 board feet

b. 16.66 Board Feet

c. 33.33 Board Feet

d. 62 Board Feet

5. In preparation for a shotcrete application, wire reinforcement should be placed so that it is running in both

directions and spaced ______ apart.

a. 2”

b. 4”

c. 6”

d. 8”

6. Among the duties of a shotcrete pump operator is to

a. Proportion the mixing of the materials

b. Dragging the hose into place

c. Monitor water content by observing the slump

d. Scheduling & logistics


7. What is the term for quickly opening & closing a welding tank’s valve to clean out debris?

a. Blowing

b. Cracking

c. Shooting

d. Cleaning

8. What is a measure of the water clarity level?

a. 20/20

b. NTUs

c. BTUs

d. Filter media size

9. Given the following, what should the vacuum gauge reading on this system if the TDH is 60 feet of head

and the pressure gauge reads 25 psi?

a. 2.0

b. 2.25

c. 2.31

d. 1.133

10. What should you do when you change a chlorine gas cylinder?

a. Test the CL2 levels.

b. Evacuate a 1/4 mile radius.

c. Change the seal.

d. Put on scuba gear.

11. How many gallons are in the following “L” shaped pool? The long side of the pool is 20 feet wide, 40 feet

long with an average depth of 3.5 feet. The short side of the “L” is 20 feet long and 20 feet wide with an

average depth of 8 feet.

a. 35,000

b. 39,000

c. 44,880

d. 45,000

12. Shotcrete will lose slump during pumping. Entrained air is also lost if the concrete free falls in the pump

system. The loss depends on which of the following:

a. Length of line

b. Type of pump

c. Initial level of air content

d. All of the above


13. You are operating a swimming pool with a flow rate of 744 gallons per minute. Calculate the minimum size

of cartridge filter for a 2 pump system.

a. 1,984

b. 992

c. 3,968

d. 1,444

14. Which is a requirement for testing water in a commercial swimming pool?

a. Must use a blue taylor test kit.

b. Must take water sample from 2 locations on pools larger than 500,000 gallons.

c. DPD must be used for chlorine measurements.

d. None of the above.

15. To assist the pool operator in performing the daily maintenance requirements, all circulation components

should be .

a. Labeled

b. Tagged

c. Color coded

d. All of the above

16. Which wire tie is normally used when tying wall reinforcement?

a. Saddle or “U” ties

b. Wrap and snap

c. Single ties

d. Wrap and saddle ties

17. In the dry mix process, adding water to the aggregate before mixing to bring its moisture content to about 3-

6% is called .

a. prewetting

b. predampening

c. setting

d. slumping

18. What is the maximum recommended spacing of anchors for most vertical applications?

a. 36”

b. 36” on centers

c. 24” on centers

d. 36” minimum


19. Employees working in areas where there is a possible danger of head injury from impact, or from falling or

flying objects, or from electrical shock and burns shall be protected by which of the following?

a. Safety goggles

b. Helmet

c. Steel toed boots

d. Scaffolding

20. In a public swimming pool, diving equipment shall be installed in accordance with the specifications of

which of the following?

a. Florida Building Code

b. FAC Chapter 64E-9

c. Manufacturers specifications

d. All of the above

21. According to the Guide to Shotcrete Manual the slump of concrete should be maintained between:

a. 1” – 2”

b. 1-1/2” – 2-1/2”

c. 1-1/2” – 3”

d. 1” – 3”

22. When applying shotcrete to form thick walls, an alternate approach is to bring the material application to

within ____________ of the finish grade.

a. ¼” to ¾”

b. ¼” to 1”

c. ½” to 1-1/4 “

d. 1”- 1-1/2”

23. When applying a shotcrrete flash or finish coat which finish method is most difficult to achieve?

a. Wood Float

b. Brush

c. Rubber Float

d. Steel Trowel

24. The operating pressure of the shotcrete air compressor is 60psi.for any job with a hose length of 100ft or

less. What should the operating pressure be raised to where the job requires 250’ of hose length?

a. 60 psi

b. 65psi

c. 70psi

d. 75 psi


25. Vinyl liner wrinkling, plaster & concrete etching, rapid dissipation of sanitizer and Corrosion of metals are

all indicators of:

a. Low PH

b. High PH

c. Chelation

d. Sequestration

26. The best tool to level a 24 inch pool tile is

a. Bubble level

b. Transit

c. Ruler

d. String

27. Chlorine gas has a characteristic greenish yellow color and is about______ times as heavy as air

a. 1-1/2

b. 2-1/2

c. 3-1/2

d. 4-1/2

28. When product testing for the hydrostatic integrity of a pressure service filter tank how many times is the

schedule of pressure & relief cycle repeated?

a. 500 times

b. 1,000 times

c. 10,000 times

d. 20,000 times

29. Among the possible causes of cavitation are_________

a. Partially closed or restricted suction line

b. Leak in the plumbing on the vacuum side of the the circulation system

c. A dirty vacuum filter that needs cleaning

d. All of the above

30. When cleaning a pool deck that has been contaminated with bodily fluids the recommended cleaning

solution is__________

a. Muriatic Acid dilute solution 2%

b. Sodium Hypochlorite dilute solution 10%

c. Ammonia dilute solution 3%

d. Tap water


31. All pools shall be provided with at least one 18” diameter lifesaving ring with what length of rope?

a. 8 feet

b. 16 feet

c. 24 feet

d. Sufficient length to reach all parts of the pool from the pool deck

32. Pool Chemicals shall be stored in a______________

a. Cool, dry and well ventilated area

b. Under a roof

c. In an area not accessible to the public

d. All of the above

33. What is the weight of one gallon of water?

a. 7.50lbs

b. 7.48 lbs

c. 8.33.lbs

d. 8.50 lbs

34. An organic chemical that forms more thatn one bond to metal ions in solution forming complexes that have

different properties than the original metal ion is a___________

a. Sequestering Agent

b. Chelating Agent

c. Complexing Agent

d. All of the above

35. How long will it take to raise the temperature 40 degrees in a spa that holds 1000 gallons with the water

being heated with a gas fired heater rated at 175,000 BTU?

a. 1 hr

b. 1-1/2 hr

c. 2 hr

d. 2-1/2 hr

36. How often would you have to replace the water in a spa that has dimensions of 31ft in diameter and is 3 feet

deep with a bather load of 45 users in a 24 hour period?

a. 112 days

b. 125 days

c. 180 days

d. 365 days


37. A customer of yours wants the temperature of his pool water at 30 degrees Celsius. The water temperature is

currently at 84 degrees Fahrenheit. How many degrees (in Fahrenheit) will you have to adjust the water

temperature up or down?.

a. +1.0

b. -1.0

c. +2.0

d. -2.0

38. How many BTU’s does it take to heat 1 gallon of water?

a. .432

b. 2.31

c. 7.48

d. 8.33

39. In a commercial public swimming pool the hydraulic capacity of the surface skimming overflow system

shall be capable of handling __________ of the circulation flow.

a. 50%

b. 75%

c. 90%

d. 100%

40. The maximum slope for a wooden pool decking shall be ________

a. 1/8” per 1 foot

b. ¼” per 1 foot

c. ½” per 1 foot

d. 1” per 1 foot

41. According to the American National Standards Institute the maximum height for step risers on a pool

Deck shall be____________

a. 7 inches

b. 7-1/4 inches

c. 7-1/8 inches

d. 7 – ½ inches

42. The clearance between the filter tank and cartridge(s) or elements or adjacent cartridges shall be at

Least ____________.

a. .25 inch

b. .50 inch

c. .75 inch

d. 1.0 inch


43. How many cubic feet of water are in 1 gallon?

a. 7.50 cubic ft

b. 7.48 cubic ft.

c. .13369 cubic ft

d. .463 cubic ft.

44. Chlorine chemical generators (in-line & brine tank) and chemical feeders for pool chlorinator systems

shall be capable of supplying no less than ____________ of chlorine per day, per 10,000 gallons.

a. 1 lb

b. 2 lb

c. 3 lb

d. 4 lb

45. Among the advantages of using Bromine instead of Chlorine in a high use application like a spa are:

a. less odor

b. less irritating to the eyes

c. less irritating to mucous membranes

d. all of the above

46. When installing a moveable floor to provide ADA accessibility to a pool it is important that the pool

Coping be no greater than _____ different in height thatn the moveable floor.

a.. .25 inches

b. .50 inches

c. .75 inches

d. 1.00 inches

47. In a pool that is less than 30 feet in width the wall inlets shall be spaced not to exceed ________.

a. 5 feet

b. 10 feet

c. 15 feet

d. 20 feet

48. What is the best way to clean a very dirty (stained) water line?

a. Lower the PH of the pool for a period of time

b. Drain and acid wash the pool

c. Super chlorinate the pool

d. Use a chelating agent


49. When the vacuum gauge reading goes up and flow rate of the returns drops to a minimum it is most

likely a good indicator of:

a. Blocked pressure line

b. dirty filter

c. dirty hair & lint strainer

d. media element is torn

50. An organic chemical that forms more thatn one bond to metal ions in solution forming complexes that have

different properties than the original metal ion is a___________

a. Sequestering Agent

b. Chelating Agent

c. Complexing Agent

d. All of the above


1 Exam Prep

State Pool Contractor Feedback

Answers

1. What valves are not part of the pool recirculation system? d. Hydrostatic Valves Answer reference: CPO Page 128-130 1. Given the minimum required wattage required, how many 200 watt underwater lights are required in a 20’ X 40”

outdoor pool?

a. Two Answer Reference: _64e-9.006 (2) (c) 2_____20 X 40 = 800 sq ft x .5 watts = 400 watts / 200 = 2 lights 2. What is the contact wood area that is necessary to form & pour concrete wall 6’ high, 25’ long and 8” thick?

b. 296 sq ft 6x24x2= 288 plus 8/12x6x2=8 288 + 8 = 296 sq ft Answer reference: Walkers 3. How many board feet of wood would be required to build a partition wall that measures 8’ high x 25’ long and is 4”

thick with one 2x4 sole plate but a double plate at the top? Assume studs placed a 18” O.C.

d. 62 board feet Formula for board feet is in Walkers page 746; name of lumber x length/ 12 = BF Formula to calculate # studs is span / spacing, round up and add 1 (this places stud at each end Double top plate: 2x4x25 / 12x2 = 33.33 BF Bottom sole plate: 2x4x25/ 12 = 16.66 BF Stud wall: 25/1.5 = 16.66 (round up) 17+1 = 18 studs with one on each end 18 studs x 8’ high = 144 L.F. 2x4 x 144 / 12 = 12 BF 13.33 + 16.66 + 12 = 62 BF Answer reference: Walkers 4. In preparation for a shotcrete application, wire reinforcement should be placed so that it is running in both

directions and spaced ______ apart.

b. 4” Answer reference: Shotcrete 2.8


5. Among the duties of a shotcrete pump operator is to

c. Monitor water content by observing the slump Answer reference: Shotcrete 8.5.3 6. What is the term for quickly opening & closing a welding tank’s valve to clean out debris?

b. Cracking Answer reference: OSHA 1926.305(d) (1) 7. What is a measure of the water clarity level?

b. NTUs Answer reference: CPO Page 138 – Nephelometer Turbidity Units 8. Given the following, what should the vacuum gauge reading on this system if the TDH is 60 feet of head and the

pressure gauge reads 25 psi?

a. 2.0 Answer reference: CPO Pg. 127 & 267 10. What should you do when you change a chlorine gas cylinder? c. Change the seal. Answer reference: CPO Pg. 106 11. How many gallons are in the following “L” shaped pool? The long side of the pool is 20 feet wide, 40 feet long with an average depth of 3.5 feet. The short side of the “L” is 20 feet long and 20 feet wide with an average depth of 8 feet. c. 44,880 Answer reference: CPO Pg. 27 12. Shotcrete will lose slump during pumping. Entrained air is also lost if the concrete free falls in the pump system. The loss depends on which of the following: d. All of the above. Answer reference: Shotcrete 6.3.2 13. You are operating a swimming pool with a flow rate of 744 gallons per minute. Calculate the minimum size of cartridge filter for a 2 pump system. a. 1,984 Answer reference: CPO Pg. 140

Pressure side head 25 x 2.31 = 57.75 60.00 - 57.75 = 2.25 Vacuum side head 2.25 / 1.133 = 1.986 (round up to 2) Vacuum side gauge reading

20 x 40 x 3.5 = 2,800 20 x 20 x 8 = 3,200 2,800 + 3,200 = 6,000 x 7.48 = 44,880

FA = FR ÷ FMR 1,984 = 744 ÷ .375


14. Which is a requirement for testing water in a commercial swimming pool? d. None of the above. Answer reference: 64E-9.004(11) 15. To assist the pool operator in performing the daily maintenance requirements, all circulation components should be . d. All of the above Answer reference: CPO Pg. 130-131 16. Which wire tie is normally used when tying wall reinforcement? b. Wrap and snap Answer reference: CRSI 11-29 17. In the dry mix process, adding water to the aggregate before mixing to bring its moisture content to about 3-6% is called b. predampening Answer reference: Shotcrete 7.3.1 18. What is the maximum recommended spacing of anchors for most vertical applications? b. 36” on centers Answer reference: Shotcrete 5.5 19. Employees working in areas where there is a possible danger of head injury from impact, or from falling or flying objects, or from electrical shock and burns shall be protected by which of the following? b. Helmet Answer reference: OSHA 1926.100(A) 20. In a public swimming pool, diving equipment shall be installed in accordance with the specifications of which of the following? c. Manufacturers specifications Answer reference: ANSI 1 6.5.1 21. According to the Guide to Shotcrete Manual the slump of concrete should be maintained between: c. 1-1/2” – 3” Answer reference: Shotcrete 8.5.3 22. When applying shotcrete to form thick walls, an alternate approach is to bring the material application to within ____________ of the finish grade. b. ¼” to 1” Answer reference: Shotcrete 8.6.2


23. When applying a shotcrrete flash or finish coat which finish method is most difficult to achieve? d. Steel Trowel Answer reference: Shotcrete 8.6.3 24. The operating pressure of the shotcrete air compressor is 60psi.for any job with a hose length of 100ft or less. What should the operating pressure be raised to where the job requires 250’ of hose length? a. 60 psi Answer reference: Shotcrete 3.4.1 25. Vinyl liner wrinkling, plaster & concrete etching, rapid dissipation of sanitizer and corrosion of metals are all indicators of: a. Low pH Answer reference: CPO Pg 61 & ANSI 1 – Appendix A Chemical Operational Parameters (pH) 26. The best tool to level a 24 inch pool tile is d. String Answer reference: Trade Knowledge 27. Chlorine gas has a characteristic greenish yellow color and is about______ times as heavy as air b. 2-1/2 Answer reference: ANSI - all books in the appendix section titled “Use of Elemental Chlorine 28. When product testing for the hydrostatic integrity of a pressure service filter tank how many times is the schedule of pressure & relief cycle repeated? d. 20,000 times Answer reference: ANSI 50: Annex B - B.1.4 Hydrostatic Pressure Test Method 29. Among the possible causes of cavitation are_________ d. All of the above Answer reference: CPO Page 126 30. When cleaning a pool deck that has been contaminated with bodily fluids the recommended cleaning solution is__________ b. Sodium Hypochlorite dilute solution 10% Answer reference: CPO Page 44 31. All pools shall be provided with at least one 18” diameter lifesaving ring with what length of rope? d. Sufficient length to reach all parts of the pool from the pool deck Answer reference: ______64E-9.008 (2)


32. Pool Chemicals shall be stored in a______________ d. All of the above Answer reference: 64E-9.008 (5) 33. What is the weight of one gallon of water? c. 8.33.lbs Answer reference: CPO Pg 262 Table B-4 Conversion & Calculation Guide 34. An organic chemical that forms more that one bond to metal ions in solution forming complexes that have different properties than the original metal ion is a___________ d. All of the above Answer reference: CPO Glossary – Definitions: Chelating Agent pg 264 35. How long will it take to raise the temperature 40 degrees in a spa that holds 1000 gallons with the water being heated with a gas fired heater rated at 175,000 BTU? c. 2 hr Answer reference: CPO 7 Gas Heater Sizing 36. How often would you have to replace the water in a spa that has dimensions of 31ft in diameter and is 3 feet deep with a bather load of 45 users in a 24 hour period? b. 125 days Answer reference: CPO Pg 170 Water Replacement 37. A customer of yours wants the temperature of his pool water at 30 degrees Celsius. The water temperature is currently at 84 degrees Fahrenheit. How many degrees (in Fahrenheit) will you have to adjust the water temperature up or down? c. +2.0 Answer reference: CPO Pg 262 Table B-4 Conversion & Calculation Guide

BTU= Gallons x 8.33 x Temp Rise /heater Capacity = hrs 333,200 =1000 x 8.33 x 40 333,200 / 175,000 = 1.904 or 2 hrs

Replacement Interval (days) = Gallons / 3 / users per day XX = (3.14x15.5x15.5 x 3) x 7.48 / 3 / 45 XX= (754.385 x 3) x 7.48 / 3 / 45 XX = (2,263.155) x 7.48 / 3 / 45 XX = 16,928.40 / 3 / 45 = 125.396 days

F = (C x 1.8 ) + 32 X = (30 x 1.8) + 32 X = (54) + 32 86 degrees Fahrenheit is what he desires


38. How many BTU’s does it take to heat 1 gallon of water? d. 8.33 Answer reference: CPO Pg 156 Gas Heater Sizing 39. In a commercial public swimming pool the hydraulic capacity of the surface skimming overflow system shall be capable of handling __________ of the circulation flow. d. 100% Answer reference: ANSI 1 – 12.5 40. The maximum slope for a wooden pool decking shall be ________ b. ¼” per 1 foot Answer reference: ANSI 3 – 6.4.1 41. According to the American National Standards Institute the maximum height for step risers on a pool deck shall be____________ d. 7 – ½ inches Answer reference: ANSI 1 – 7.1.4 or ANSI 2 6.4 42. The clearance between the filter tank and cartridge(s) or elements or adjacent cartridges shall be at least ____________. a. .25 inch Answer reference: ANSI 50 – 5.4.1 43. How many cubic feet of water are in 1 gallon? c. .13369 cubic ft Answer reference: CPO page 25_________ 44. Chlorine chemical generators (in-line & brine tank) and chemical feeders for pool chlorinator systems shall be capable of supplying no less than ____________ of chlorine per day, per 10,000 gallons. c. 3 lb Answer reference: ANSI 50 – Annex J - J.5.1.1.1 sizing a pool chlorinator system 45. Among the advantages of using bromine instead of chlorine in a high use application like a spa are: d. all of the above Answer reference: CPO page 55 46. When installing a moveable floor to provide ADA accessibility to a pool it is important that the pool coping be no greater than _____ different in height than that of the moveable floor. b. .50 inches Answer reference: CPO page 234

1 cubic ft water = 7.48 gallons Therefore 1 / 7.48 = .13369 cubic ft


47. In a pool that is less than 30 feet in width the wall inlets shall be spaced not to exceed ________. d. 20 feet Answer reference: 64E-9.007(9)(a) 48. What is the best way to clean a very dirty (stained) water line? b. Drain and acid wash the pool Answer reference: CPO page 79 49. When the vacuum gauge reading goes up and flow rate of the returns drops to a minimum it is most likely a good indicator of: c. dirty hair & lint strainer Answer reference: CPO page 222 50. An organic chemical that forms more that one bond to metal ions in solution forming complexes that have different properties than the original metal ion is a___________ d. All of the above Answer reference: CPO Glossary - Definitions Chelating Agent pg 264

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