Download DUVAL COUNTY MASTER PLUMBER Exam and more Exams Technology in PDF only on Docsity!
Exam
Question 1. Which document is typically required to obtain a plumbing permit in Duval County? A) Proof of insurance B) Complete set of plans and specifications C) Personal references D) Proof of vehicle registration Answer: B Explanation: A complete set of plans and specifications is required to ensure the proposed plumbing work complies with local codes and standards. Question 2. What type of license allows a plumber to operate independently and supervise others in Duval County?
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A) Apprentice license B) Journeyman license C) Master plumber license D) Specialty contractor license Answer: C Explanation: The master plumber license authorizes independent work and supervisory responsibilities. Question 3. Under Florida law, which of the following is a key component of a valid contract for plumbing services? A) Oral agreement only B) Written documentation outlining scope of work and payment terms C) Handshake agreement
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Explanation: All elements—material, labor, overhead, and profit—must be included for an accurate bid. Question 5. What is the primary purpose of the Florida Building Code as it pertains to plumbing? A) To increase construction costs B) To establish minimum standards for health and safety C) To promote specific manufacturers D) To delay project timelines Answer: B Explanation: The code sets minimum standards to protect health, safety, and welfare.
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Question 6. Which of the following best defines “potable water” in the plumbing code? A) Water suitable for irrigation only B) Water fit for human consumption C) Water used for mechanical equipment D) Water for industrial use only Answer: B Explanation: Potable water is water that is safe for drinking and culinary purposes. Question 7. Which type of joint is NOT permitted for joining copper tubing in potable water systems? A) Soldered joint
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Answer: B Explanation: Accurate record-keeping is essential for legal compliance and project tracking. Question 9. Which of the following is true regarding a plumbing permit in Duval County? A) It is optional for small repairs B) It is required for all new installations and major alterations C) It can be transferred between contractors D) It is valid indefinitely Answer: B Explanation: Permits are required for new installations and significant changes to ensure code compliance.
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Question 10. In the context of backflow prevention, what is the function of a reduced pressure zone (RPZ) assembly? A) Increase water pressure B) Prevent contaminated water from entering potable supply C) Reduce water temperature D) Regulate water flow only Answer: B Explanation: RPZ assemblies prevent backflow, protecting the potable water supply from contamination. Question 11. When should a plumbing permit be posted on the job site in Duval County?
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C) Issuing permits D) Approving inspections Answer: B Explanation: Journeyman plumbers work under the direction of a master plumber and do not operate independently. Question 13. What overhead costs should be included in plumbing business financial management? A) Only material costs B) Rent, utilities, insurance, and administrative expenses C) Profit only D) Labor only Answer: B
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Explanation: Overhead includes all ongoing business expenses not directly attributed to specific jobs. Question 14. What is the minimum slope required for horizontal drainage piping under the Florida Plumbing Code? A) 1/16 inch per foot B) 1/8 inch per foot C) 1/4 inch per foot D) 1/2 inch per foot Answer: C Explanation: A minimum slope of 1/4 inch per foot ensures proper drainage and prevents blockages.
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B) S-trap C) Wet vent D) Cleanout Answer: A Explanation: An air gap is the most effective means of preventing cross- connection and contamination. Question 17. What is the purpose of a cleanout in a drainage system? A) Increase water pressure B) Provide access for cleaning and removing blockages C) Regulate temperature D) Support pipe structure
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Answer: B Explanation: Cleanouts allow for maintenance and clearing of clogs in the drainage system. Question 18. Which of the following is required for all plumbing fixture installations according to code? A) Fixtures must be color-matched B) Must have a trap to prevent sewer gases C) Must be installed above ground D) Must be made of metal Answer: B Explanation: Traps are necessary to prevent the escape of sewer gases into occupied spaces.
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A) Invoice B) Balance sheet C) Job cost report D) Tax return Answer: C Explanation: Job cost reports track all expenses related to a specific project and compare to estimates. Question 21. What is the purpose of a plumbing code inspection? A) To delay project completion B) To verify compliance with applicable codes and standards C) To provide design recommendations
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D) To assess property value Answer: B Explanation: Inspections ensure that all work meets safety and code requirements. Question 22. What is the minimum water service pipe diameter for a single-family dwelling in Florida, unless otherwise calculated? A) 1/2 inch B) 3/4 inch C) 1 inch D) 1-1/2 inch Answer: B
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Question 24. What is a “wet vent” as defined in the plumbing code? A) A vent that is always filled with water B) A drain pipe that serves as both a drain and a vent for one or more fixtures C) An outdoor vent pipe D) A vent pipe installed in a basement Answer: B Explanation: A wet vent is a drain that also acts as a vent, serving multiple fixtures. Question 25. Which type of piping material is most commonly used for hot and cold potable water distribution in modern residential construction?
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A) PVC
B) PEX
C) Cast Iron D) Copper Answer: B Explanation: PEX piping is flexible, easy to install, and widely used for both hot and cold water lines. Question 26. To whom must a plumber apply to obtain a permit in Duval County? A) The property owner B) The general contractor C) The local building department
