Building Construction Classifications Flashcards
7 cards from real CFI 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 Construction Classifications flashcards as text
Which of the following is a key fire risk associated with Type V-B (wood frame, unprotected) construction?
Answer: Rapid fire spread through void spaces and early structural collapse
Type V-B wood frame buildings have concealed combustible void spaces that allow rapid fire travel and provide little time before structural failure.
Fire-resistive construction (Type I) is MOST likely to be found in which occupancy?
Answer: High-rise office building
High-rise buildings require Type I fire-resistive construction to maintain structural integrity long enough for evacuation and firefighting operations.
The 'protected' designation (sub-type A) in IBC construction types means that:
Answer: Structural elements have required fire-resistance ratings applied
In IBC terminology, 'protected' (A designation) means structural members are encased or coated to achieve required fire-resistance ratings.
Which statement about Type IV-HT (heavy timber) construction and fire performance is MOST accurate?
Answer: Large timber members char slowly, maintaining structural integrity longer than light wood frame
Large timber members develop a protective char layer that insulates the core, allowing them to retain structural strength longer than light wood framing.
An inspector finds a building with noncombustible exterior walls and combustible interior framing. According to IBC, this is classified as:
Answer: Type III
Type III (ordinary) construction is defined by noncombustible or limited-combustible exterior walls with combustible interior structural members.
Unprotected steel structural members are MOST hazardous in a fire because they:
Answer: Lose significant strength at temperatures reached in ordinary building fires
Unprotected steel loses approximately 50% of its yield strength at around 1,100°F, temperatures commonly reached in building fires, leading to connection failure and collapse.
When comparing Type I-B and Type II-B construction, the primary difference is:
Answer: Type I-B has higher required fire-resistance ratings on all structural elements
Both Type I-B and II-B use noncombustible materials, but Type I-B carries significantly higher fire-resistance ratings per IBC Table 601.