Fire dampers are installed to control fire spread in which system?

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Multiple Choice

Fire dampers are installed to control fire spread in which system?

Explanation:
Fire dampers are designed to resist the spread of fire through ventilation duct systems that pass through fire-resistance–rated barriers. When heat is detected, the damper closes automatically, sealing off the duct and preventing flames, smoke, and hot gases from moving between compartments. This helps preserve the integrity of fire barriers and contain the fire to its area of origin, giving occupants time to evacuate and firefighters better access. Dampers are not used in plumbing pipes, electrical conduits, or structural elements, where other fire-stop or structural measures apply.

Fire dampers are designed to resist the spread of fire through ventilation duct systems that pass through fire-resistance–rated barriers. When heat is detected, the damper closes automatically, sealing off the duct and preventing flames, smoke, and hot gases from moving between compartments. This helps preserve the integrity of fire barriers and contain the fire to its area of origin, giving occupants time to evacuate and firefighters better access. Dampers are not used in plumbing pipes, electrical conduits, or structural elements, where other fire-stop or structural measures apply.

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