What term defines the ability of a structural assembly to maintain its load-bearing capability under fire conditions?

• A. Fire resistance
• B. Fire load
• C. Fire Walls
• D. Draft curtains (curtain boards)

Answer: (A)

This question tests the ability of a structural assembly to maintain its load-bearing capability under fire conditions. The correct term for this property is fire resistance—it describes how long a component can withstand fire while still supporting loads and keeping its structural integrity, as determined by standardized fire tests. Fire resistance is measured as a rating, reflecting the duration a member can perform under fire exposure, not the amount of heat present (that would be fire load), nor a barrier designed to stop fire spread (fire walls) or devices that control air movement (draft curtains). In practice, engineers specify a fire-resistance rating for structural members so they can continue to carry loads for a defined period during a fire.