Radiant-Energy-Sensing Fire Detectors
How well do you know the NFPA 72-2025 requirements for radiant energy detectors? Take this quiz and test your knowledge.
1. Radiant-energy-sensing fire detectors are categorized as _____ detectors.
Correct Answer: A and C
2. Flame detectors are line-of-sight detectors.
Correct Answer: True
3. Radiant energy fire detectors are required to be inspected _____.
Correct Answer: Quarterly
4. A spark/ember detector senses the radiant energy emitted by sparks or embers, typically between _____ and _____ microns in normally dark environments.
Correct Answer: 0.5, 2
5. Spark/ember detectors are required to be tested _____.
Correct Answer: Semiannually
6. Only carbon-containing fuels emit significant radiation at the _____ micron (carbon dioxide) band used by many detector types to detect a flame.
Correct Answer: 4.35
7. Radiant-energy-sensing fire detectors should not be placed in protected housing (e.g., behind glass) unless the housing is listed for this purpose.
Correct Answer: True
8. Flame detectors have a listed spacing.
Correct Answer: False
9. Flame detectors can be affected by artificial lighting.
Correct Answer: True
10. While most spark/ember detectors will respond to a flame, most flame detectors will not respond to a glowing ember.
Correct Answer: True
Score: