Plumbing Codes & Safety Flashcards
6 cards from real Plumbing practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Plumbing Codes & Safety flashcards as text
Which model plumbing code is most widely adopted in the United States?
Answer: Both UPC and IPC are widely adopted
Both the Uniform Plumbing Code (UPC) and the International Plumbing Code (IPC) are widely adopted in the US, with western states generally using UPC and eastern states generally using IPC.
What is required before starting a major plumbing project in most US jurisdictions?
Answer: A plumbing permit from the local authority having jurisdiction (AHJ)
Most major plumbing work requires a permit from the local authority having jurisdiction (AHJ), ensuring the work is inspected and meets code requirements.
What does the term 'authority having jurisdiction' (AHJ) mean in plumbing codes?
Answer: The local government body or official responsible for enforcing building and plumbing codes
The AHJ is the local organization, office, or individual responsible for enforcing the requirements of the applicable plumbing code in that jurisdiction.
What is a 'fixture unit' (DFU) used for in plumbing design?
Answer: A unit to calculate the drainage load that a fixture imposes on the drainage system
A drainage fixture unit (DFU) is a standardized measure of the probable discharge from plumbing fixtures, used to size drainage pipes and determine system capacity.
What does a 'rough inspection' verify in plumbing construction?
Answer: That all rough-in pipe installations are correct before walls are closed
A rough inspection occurs after all supply and drain/vent pipes are installed but before walls are closed, verifying correct pipe sizing, slopes, and connections.
What is required to legally perform plumbing work for hire in most US states?
Answer: A state-issued plumbing license (journeyman or master)
Most US states require plumbers performing work for hire to hold a state-issued plumbing license, with journeyman and master plumber designations having different scopes of work.