Engine Plants (Supplementary) USCG Question #131 (Set 2)

The component shown in the illustration would be installed in which of the following types of fire detection systems? SF-0004

Official USCG Answer & Rule Citation

Correct Answer: Option A — Fixed temperature

Fixed temperature fire detectors are designed to trigger an alarm when the ambient temperature reaches a predetermined set point. Unlike rate-of-rise detectors that monitor the speed of temperature change, fixed temperature units rely on a specific thermal threshold, often utilizing bimetallic elements or fusible links to close the electrical circuit.

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