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What is a significant disadvantage of rise-of-temperature detectors?
They are expensive to install
They may not activate until flames are present
They cannot be used in outdoor settings
They do not detect smoke
The correct answer is: They may not activate until flames are present
The significant disadvantage of rise-of-temperature detectors is that they may not activate until flames are present. These types of detectors are designed to respond to a specific increase in temperature rather than the presence of smoke or other early indicators of fire. This means they can potentially delay activation until the fire has already progressed to a more severe stage, making them less effective in early fire detection compared to smoke detectors or other types of fire alarms that respond to smoke or chemical changes indicative of a fire's inception. This delayed response can lead to greater damage, increased danger to occupants, and a higher risk of injury or loss of life, highlighting the importance of using multiple detection methods in fire safety systems.