ASTTBC RFPT — Portable Fire Extinguishers (EX) · Question
A stored-pressure water extinguisher that is 'UL Listed' but lacks a 'Class A' rating on its nameplate is typically designated for what specific application?
Per NFPA 10, Section 4.1.1 and 5.2.1, water-type extinguishers without a rating generally refer to specific loaded stream or anti-freeze types meant strictly fo
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Question: A stored-pressure water extinguisher that is 'UL Listed' but lacks a 'Class A' rating on its nameplate is typically designated for what specific application?
Answer options:
- Class B pool fires
- Class D metal fires only ✅ Protection of Class A hazards in freezing conditions
- Class K fires in commercial kitchens
Correct answer: Protection of Class A hazards in freezing conditions
Explanation: Per NFPA 10, Section 4.1.1 and 5.2.1, water-type extinguishers without a rating generally refer to specific loaded stream or anti-freeze types meant strictly for Class A protection in sub-zero environments, provided they meet the standard's performance criteria.
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- Under NFPA 10, what is the 'Light Hazard' (Low) requirement for the maximum travel distance to a Class A fire
- According to NFPA 10, what is the maximum permissible interval for the internal examination and maintenance of
- Which specific standard must be followed when performing hydrostatic testing on fire extinguisher cylinders in
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