Plumbing Codes and Regulations Flashcards
7 cards from real Master Plumber Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Plumbing Codes and Regulations flashcards as text
Under the IPC, what is the required test pressure for a new water distribution system before it is put into service?
Answer: 100 psi for 15 minutes
The IPC requires new water distribution systems to be tested at 100 psi for a minimum of 15 minutes without leakage.
Which code section of the IPC specifically governs storm drainage systems?
Answer: Chapter 10
IPC Chapter 10 covers storm drainage, including roof drains, leaders, and storm sewer connections.
According to the IPC, a floor drain installed in a parking garage must be connected to:
Answer: A sand/oil interceptor before the sewer
Parking garage floor drains must discharge through a sand and oil interceptor to remove petroleum products before entering the sewer.
Under model plumbing codes, what is the minimum number of fixture units a 4-inch vertical soil stack can carry?
Answer: 256 DFU
Per IPC Table 710.1, a 4-inch vertical stack can carry 256 drainage fixture units.
The IPC requires that vent pipes penetrating a roof extend a minimum of how far above the roof surface in areas subject to frost?
Answer: 12 inches
In frost areas the IPC requires vent terminals to extend at least 12 inches above the roof to prevent frost closure.
Per OSHA and plumbing codes, a plumber working in a trench deeper than 5 feet must ensure the trench is:
Answer: Sloped, shored, or shielded
OSHA 29 CFR 1926.652 requires trenches 5 feet or deeper to be sloped, shored, or protected with a trench shield.
Which of the following fixtures does NOT require a trap under model plumbing codes?
Answer: Water closet
Water closets have an integral trap built into the bowl and do not require a separate external trap.