Question 15 of 30
Automatic fire dampers in ventilation systems are operated by use of
A
A) Heat or smoke detectors
B
B) CO2 system pressure switches
C
C) Remotely operated valves
D
D) Fusible links
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Answer & Explanation
The correct answer is Option D: D) Fusible links.
Fusible links are heat-sensitive components designed to melt at a specific temperature. When they melt, the tension holding the damper open is released, allowing the fire damper to close automatically and isolate ventilation ducts to prevent fire spread.