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Ben Hirst Fire Inspector 1 Practice Test

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A building having structural members, including walls, columns, beams, and floors that are wholly or partly constructed of wood that is heavy timber construction is classified as ______________construction.
Correct Answer:
Type IV
Explanation:
Heavy timber construction uses large-dimension wood for the main structural members, giving the building its load paths with substantial wooden elements. This approach is classified as Type IV construction, distinguishing it from noncombustible types that rely on concrete, steel, or masonry for structural members, and from Type III where exterior walls are noncombustible but interior framing can be wood. When you see walls, columns, beams, and floors built wholly or partly from heavy timber, that matches Type IV construction.

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