Building Codes & Regulations Flashcards
7 cards from real CRC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Building Codes & Regulations flashcards as text
What is the primary purpose of a building setback requirement?
Answer: To control the distance a structure must be from property lines
Setback requirements, typically found in zoning ordinances, regulate the minimum distance a structure must be placed from property boundaries, roads, and other features.
Under the IRC, which type of fastener is specifically prohibited for use with pressure-treated lumber?
Answer: Bright (uncoated) steel nails
Bright (uncoated) steel fasteners corrode rapidly when in contact with pressure-treated wood chemicals and are not permitted; hot-dipped galvanized or stainless steel must be used.
A residential contractor installs a water heater in a garage. Under the IRC, the ignition source must be elevated how far above the floor to prevent ignition of flammable vapors?
Answer: 18 inches
IRC R305 and the fuel-gas code require that water heaters with an ignition source in a garage be installed with the ignition source at least 18 inches above the floor.
What does a zoning variance allow a property owner to do?
Answer: Deviate from a specific zoning requirement for their property
A variance is an administrative exception that permits a property owner to deviate from a specific dimensional or use requirement of the zoning ordinance.
Under the IRC, what is the minimum required headroom clearance for a stairway?
Answer: 6 feet 8 inches
The IRC requires a minimum headroom clearance of 6 feet 8 inches measured vertically from the stair nosing to the ceiling above.
Which code body publishes the National Electrical Code (NEC), which governs residential electrical installations?
Answer: National Fire Protection Association (NFPA)
The NEC (NFPA 70) is published by the National Fire Protection Association and is the widely adopted standard for electrical installations.
Under the IRC, GFCI protection is required for receptacles installed in which location?
Answer: Bathrooms, garages, outdoors, crawl spaces, and unfinished basements
IRC E3902 requires GFCI protection for receptacles in bathrooms, garages, outdoors, crawl spaces, unfinished basements, and near kitchen and laundry sinks.