Fusible link fire dampers are operated by __________.
Official USCG Answer & Rule Citation
Correct Answer: Option C — the heat of a fire melting the link
Fusible links are heat-sensitive devices designed to melt at a specific temperature, typically around 160°F. When the link melts, it releases a spring-loaded mechanism that automatically closes the fire damper, effectively isolating the ventilation duct and preventing the spread of fire and smoke through the ship's structure.
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