Contractor UPDATED ACTUAL Questions
and CORRECT Answers
1. In a Public Swimming Pool backwash or pool draining water has to go through what before
itgoes into the sanitary sewer line? - CORRECT ANSWER- Air Gap
2. In a therapy spa what is the maximum temperature at the heater return outlet? - CORRECT
ANSWER- 122 degrees
3. When testing for the disinfection efficacy of process equipment the recommended ph of
thepool water should be: - CORRECT ANSWER- 7.2 - 7.6
4. What type of filter precedes the pump? - CORRECT ANSWER- vacuum E.
5. In a public spa, what is considered "neutral PH if the chlorine reading is "00"? - CORRECT
ANSWER- 7
6. Handrails & grabrails shall extend a minimum of ________ above the pool deck? -
CORRECT ANSWER- 30"
7. If you have a saturation index reading of +0.2 your pool water would
beconsidered_____________. - CORRECT ANSWER- C Balanced
8. According to Chapter 64E-9, a public pool can be immediately closed by the department
whenthe pH of the pool water is below - CORRECT ANSWER- 7.2
9. What gives a pool pump the ability to handle air and re-prime itself? - CORRECT ANSWER-
Volute
, 10. Underwater pool lighting shall be located not less than 18" below the normaloperating water
level of the pool as measured from ___________. - CORRECT ANSWER- The top of the
installed luminaire lens
11. A high-rate sand filter is a sand filter designed for flows in excess of ___ gallons per
minuteper square foot - CORRECT ANSWER- 5
12. In a Public Swimming pool, regarding stairs: the minimum stair horizontal tread depth
shallbe ____________. - CORRECT ANSWER- 10"
13. What is the term for quickly opening & closing a welding tank's valve to clean out debris? -
CORRECT ANSWER- Cracking
14. How many BTU's will it take to heat 1 gallon of water 1degree Fahrenheit? - CORRECT
ANSWER- 8.33 BTU's
15. One-foot pressure of head is equal to ______ PSI at the pump? - CORRECT ANSWER-
0.433 PSI
16. To find a gas chlorine leak, the best method is to use a plastic bottle containing
_________and squeeze to release only vapors. - CORRECT ANSWER- 26E BE Ammonia
17. In Public Swimming pools, diving board platforms and ladders shall have a _______ finish. -
CORRECT ANSWER- Non-absorbent & slip resistant
"18. Before a regulator to a cylinder valve is connected, the valve shall be opened slightly
andclosed immediately to clear the valve of dust & dirt that might otherwise enter the regulator.
This process is known as ___________." - CORRECT ANSWER- Cracking
"19. How many gallons of water are in a pool measuring 20 feet by 40 feet, with a uniform
slopebetween a depth of 3 feet on the shallow end and 7 feet on the deep end? (select closest
answer)" - CORRECT ANSWER- 30,000