NCIDQ IDFX Practice Exam

Question: 1 / 590

What is the purpose of a fire damper?

To increase air circulation

To automatically close during a fire

The purpose of a fire damper is to automatically close during a fire, which is critical in preventing the spread of smoke and flames through air ducts. When a fire occurs, the damper is activated by heat or smoke detection systems, sealing off the ductwork. This helps to contain the fire to the area where it originated, thereby enhancing the safety of the building and protecting the occupants. Fire dampers are an essential component of fire-rated walls and ceilings, ensuring that life safety measures are upheld in accordance with building codes and fire safety regulations.

The other choices do not align with the primary function of a fire damper. Increasing air circulation pertains to vents or fans, filtering smoke is the role of specialized air cleaning systems, and acting as a heat source is contrary to the fire damper's purpose, which is to inhibit the movement of heat and smoke.

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To filter smoke from the air

To act as a heat source in ducts

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