Plumbing Codes and Standards 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 Standards flashcards as text
Under the IPC, which of the following water heater installations requires a seismic strap in Seismic Design Category C or higher?
Answer: All water heaters regardless of fuel type
The IPC requires seismic strapping for all water heaters in Seismic Design Categories C, D, E, and F, regardless of fuel type or size.
Per the IPC, what is the maximum water pressure allowed at any plumbing fixture in a building?
Answer: 80 psi
The IPC limits the maximum static pressure at any fixture to 80 psi; if street pressure exceeds this, a pressure-reducing valve must be installed.
According to the IPC, what is the minimum flow rate required at a lavatory faucet for public use?
Answer: 1.0 gpm
The IPC requires public lavatory faucets to deliver a minimum flow rate of 0.5 gpm but caps them at 0.5 gpm per the WaterSense standard; however the minimum for general lavatory supply is 1.0 gpm.
Under the IPC, which type of pipe joint is prohibited in concealed locations for water supply piping?
Answer: Flared joints
Flared joints are not approved for use in concealed locations under the IPC because they can loosen over time and require access for inspection.
Per the IPC, what is the minimum number of plumbing fixtures required for a single-occupant toilet room?
Answer: One water closet and one lavatory
The IPC requires at least one water closet and one lavatory in a toilet room serving a single occupancy.
Under the IPC, a building with an occupant load of 76–125 of each sex requires how many water closets for women?
Answer: 4
Per IPC Table 403.1, an assembly occupancy with 76–125 female occupants requires 4 water closets for women.
Per the IPC, what is the minimum cleanout size required for a 6-inch building drain?
Answer: 4 inches
The IPC requires cleanouts to be not less than 4 inches for building drains 6 inches and larger in diameter.