Question 674Deck Safety70% to pass
Automatic fire dampers in ventilation systems are operated by use of a _______________.
AI Explanation
The correct answer is D) fusible link.
Automatic fire dampers in ventilation systems are operated by a fusible link, which is a temperature-sensitive device that is designed to melt at a specific temperature. When the surrounding air reaches that temperature, typically around 165°F, the fusible link melts, allowing the fire damper to automatically close and prevent the spread of fire and smoke through the ventilation system.
The other options are incorrect because they do not accurately describe the mechanism used to activate automatic fire dampers. Heat or smoke detectors, remote-operated valves, and CO2 system pressure switches are not the primary means of operating these types of fire dampers.
Related Questions
#672 Spaces containing batteries require good ventilation because _______________.#673 Automatic fire dampers in ventilation systems are operated by use of _______________.#675 The primary reason for placing covers over storage batteries is to _______________.#676 When flammable liquids are handled in a compartment on a vessel, the ventilation for that area should be _______________.#677 It is necessary to secure the forced ventilation to a compartment where there is a fire to _______________.