You arrive at a fire scene involving a burning warehouse. What are the primary factors that determine a building's structural integrity during a fire?
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BDisintegration, runaway cracking, attachments open or break, puncture, and split or tear
CCarbon monoxide, carbon dioxide, and sulfur dioxide levels
DReinforcement bars, steel beams, and support columns
✓ Correct answer: A. Thermal, chemical, and mechanicalAnswer: Thermal, chemical, and mechanical
The primary factors that determine a building's structural integrity during a fire are thermal, chemical, and mechanical. Thermal stress arises from the heat of the fire, chemical stress can occur due to reactions between building materials and fire chemicals, and mechanical stress can result from structural loads and impacts during firefighting operations.
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Theory