Device that restricts the flow of smoke through an air handling system; usually activated by the buildings fire alarm signaling.

Device that restricts the flow of smoke through an air handling system; usually activated by the buildings fire alarm signaling.

• A. Fire Damper
• B. Smoke Control Damper
• C. Smoke Damper
• D. Air Handling Damper

Answer: (C)

Focus on stopping smoke movement through ductwork. A smoke damper is installed in the air handling system and is designed to close automatically when smoke is detected or when the fire alarm signals, isolating parts of the building and limiting smoke spread. This behavior is what distinguishes it from other dampers. A fire damper, in contrast, is heat-activated to protect fire-rated barriers where ducts penetrate walls or floors, not primarily to control smoke flow. A smoke control damper is part of a broader smoke-control strategy and may be used to manage airflow for smoke management, but the term here specifically describes a device that closes in response to smoke detection to block smoke migration. An air handling damper is a general term for dampers in an HVAC system and isn’t inherently tied to smoke control.

Focus on stopping smoke movement through ductwork. A smoke damper is installed in the air handling system and is designed to close automatically when smoke is detected or when the fire alarm signals, isolating parts of the building and limiting smoke spread. This behavior is what distinguishes it from other dampers. A fire damper, in contrast, is heat-activated to protect fire-rated barriers where ducts penetrate walls or floors, not primarily to control smoke flow. A smoke control damper is part of a broader smoke-control strategy and may be used to manage airflow for smoke management, but the term here specifically describes a device that closes in response to smoke detection to block smoke migration. An air handling damper is a general term for dampers in an HVAC system and isn’t inherently tied to smoke control.