Question 681Deck Safety70% to pass
Fusible link fire dampers are operated by _______________.
AI Explanation
The correct answer is C) the heat of a fire melting the link.
Fusible link fire dampers are designed to automatically close when exposed to the heat of a fire, shutting off the air flow and preventing the spread of fire and smoke through vent ducts. The fusible link is made of a metal alloy that melts at a specific temperature, typically around 165°F, causing the damper to close. This passive system does not rely on electrical controls or a manual break-glass system, making it a reliable way to contain fires without human intervention. The other options, while potentially used for other fire suppression systems, are not how fusible link dampers operate.
Related Questions
#679 Fighting a fire in the galley poses the additional threat of _______________.#680 The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE? #682 Fire dampers prevent the spread of fire by _______________.#683 Blocking open or removing fire dampers can cause _______________.#684 The best method of extinguishing a class A fire is to _______________.