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Safety equipmentQuestion 47 of 352

Which condition makes a portable extinguisher unfit for use as required equipment?

  1. A small label with the date
  2. A dry, clean nozzle
  3. A lock pin that is in place
  4. Signs of significant corrosion or damage
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Correct answer: Signs of significant corrosion or damage

The extinguisher must show no significant corrosion or damage.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 175: Equipment Requirements, § 175.310 Portable fire extinguishers and semi-portable fire extinguishing systems

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Questions last reviewed: 18 October 2026