What is a common feature of smoke dampers?

What is a common feature of smoke dampers?

• A. They are manually operated
• B. They are always open
• C. They automatically close when smoke is detected
• D. They only operate at high pressure

Answer: (C)

Smoke dampers are designed to automatically close when smoke is detected, which is essential for containing smoke within designated areas of a building. This feature is critical for maintaining the integrity of smoke control systems, thereby protecting occupants and allowing for safe egress during a fire incident. The automatic closing mechanism is typically triggered by smoke detection systems, which help to prevent smoke spread to other parts of the building and enhance overall safety. In contrast, manually operated systems would not provide the immediate response necessary in an emergency situation, and smoke dampers that are always open would fail to serve their intended purpose of smoke containment. The operation at high pressure is not a defining feature for smoke dampers, as they are primarily concerned with responding to smoke conditions rather than pressure considerations.

Smoke dampers are designed to automatically close when smoke is detected, which is essential for containing smoke within designated areas of a building. This feature is critical for maintaining the integrity of smoke control systems, thereby protecting occupants and allowing for safe egress during a fire incident. The automatic closing mechanism is typically triggered by smoke detection systems, which help to prevent smoke spread to other parts of the building and enhance overall safety.

In contrast, manually operated systems would not provide the immediate response necessary in an emergency situation, and smoke dampers that are always open would fail to serve their intended purpose of smoke containment. The operation at high pressure is not a defining feature for smoke dampers, as they are primarily concerned with responding to smoke conditions rather than pressure considerations.