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- Q654 - Electrical, Electronic, & Control Engineering
8. Which of the following fixed temperature heat-actuated fire detectors can be reused after it has detected a fire?
Bimetallic snap-disc detectors reset and return to their original state upon cooling, allowing for reuse after a fire event; fusible metal, liquid expansion, and thermostatic cable detectors require replacement after activation due to permanent damage or melting.
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