Foundation & Structural Systems 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 Foundation & Structural Systems flashcards as text
In residential framing, what is the horizontal structural member that spans across a window or door opening to carry the load above it?
Answer: Header
A header is a horizontal framing member installed above openings to redirect structural loads around the opening to the supporting studs on either side.
Which wood framing system uses continuous full-length studs that run from the foundation sill plate all the way to the roof rafters without interruption at each floor level?
Answer: Balloon framing
Balloon framing uses long studs running from foundation to roof, with floor joists attached to the side of the studs — unlike platform framing where each floor is built as a separate platform.
What is the minimum required bearing length for a wood beam resting on a concrete foundation wall per the IRC?
Answer: 3 inches
IRC Section R602.6 requires a minimum bearing length of 3 inches for wood beams supported on concrete or masonry walls.
In structural engineering for residential construction, which type of load refers to the permanent weight of the building's own structure and fixed components?
Answer: Dead load
Dead load is the constant, permanent weight of structural materials, finishes, and fixed equipment that does not change over the life of the building.
What is the primary structural advantage of using LVL (Laminated Veneer Lumber) beams over solid sawn lumber beams of the same dimension?
Answer: LVL offers greater dimensional stability and more predictable, consistent strength
LVL is an engineered product manufactured under controlled conditions, eliminating natural defects and providing consistent, predictable strength properties superior to solid sawn lumber.
In residential wall framing, what is a 'jack stud' (also called a trimmer stud)?
Answer: A shorter vertical stud placed alongside the king stud to support the header at an opening
A jack stud (trimmer stud) is a shortened stud that bears the load of the header and transfers it down to the bottom plate, and is nailed alongside the full-length king stud.
Which structural element is responsible for transferring concentrated vertical loads from upper floor beams or headers down to the foundation in a residential load path?
Answer: Posts or columns
Posts and columns are vertical compression members designed to carry concentrated point loads from beams, headers, or ridge lines directly down to the foundation or footing.