If Type I structural collapse does occur, it will be localized and not structure wide.

• A. Localized
• B. Global
• C. Progressive
• D. Not possible

Answer: (A)

Type I collapse is defined by its limited extent—the failure is confined to a small area, while the rest of the structure remains standing and the load paths around the damaged zone still carry weight. This means the collapse is localized rather than spreading throughout the building.

So, the best choice is localized because it captures the idea that only a portion of the structure fails, not the entire structure. A global collapse would involve the whole building failing, and a progressive collapse describes a chain reaction where collapse spreads from the initial point to larger areas; neither of those describe Type I. Not possible would be incorrect since Type I collapse can occur, albeit in a localized form.