Safety, Fire & Survival · Fire — Detection Types
Which fixed fire-detector type responds fastest to a flaming fire that produces little smoke or heat at first, such as a liquid-fuel spill fire?
- AA fusible-link sprinkler head
- BA rate-of-rise heat detector
- CAn ionization smoke detector
- DA flame (optical/IR-UV) detector✓ Correct
Explanation
Flame detectors sense the radiation of a fire and react quickly to fast-developing flaming fires (e.g., fuel spills) that may not yet produce detectable smoke or heat. Smoke detectors suit smoldering fires; heat detectors are slower and used where smoke detectors would false-alarm.
Authority: SOLAS II-2; FSS Code, fixed detection and alarm systems
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