Building Code Professionals Flashcards

What is the maximum riser height permitted for a stairway in a Group R-3 occupancy under the IRC?

Answer: 7.75 inches

The IRC permits a maximum riser height of 7-3/4 inches (7.75 inches) for stairways in Group R-3 one- and two-family dwellings.

When a jurisdiction adopts the IBC with local amendments, which document takes precedence in the event of a conflict between the local amendment and the base code?

Answer: The local amendment takes precedence

Locally adopted amendments supersede the base code provisions they modify, as municipalities have authority to set standards at least as restrictive as the model code.

Which ICC certification is required for an individual who reviews and approves plans for electrical systems in commercial buildings?

Answer: ICC Electrical Plans Examiner

The ICC Electrical Plans Examiner certification qualifies an individual to review construction documents for electrical systems in commercial projects.

What is the minimum required illumination level at the floor level for means of egress lighting under the IBC?

Answer: 1 foot-candle

The IBC requires a minimum of 1 foot-candle of illumination at the floor level along means of egress pathways.

Under the IMC (International Mechanical Code), what is the minimum clearance required between a gas-fired furnace and combustible construction when the furnace is not listed for reduced clearances?

Answer: As specified by the manufacturer's listing

The IMC requires that equipment be installed with clearances as specified by the manufacturer's listing and labeling, which takes precedence for unlisted appliances.

Which IBC chapter specifically addresses the structural design loads, including dead loads, live loads, snow loads, and wind loads?

Answer: Chapter 16

IBC Chapter 16 covers structural design, including all design load requirements such as dead, live, roof, snow, wind, and seismic loads.

What action is required under the IBC when a contractor submits a request for alternate materials or methods of construction?

Answer: The building official must evaluate and approve the alternate as providing equivalent performance

The IBC's alternate materials provision requires the building official to evaluate whether the proposed alternate provides at least equivalent performance to the code-prescribed method.