USCG Exam PracticeFire extinguishers — types, ratings, requirements
Under 33 CFR §175.310, which of the following conditions would render a portable fire extinguisher NOT in good and serviceable working condition?
- A. The extinguisher was manufactured before January 1, 1965
- ✓ The pressure gauge reading is in the operable range but the lock pin is missingCorrect
- C. The extinguisher is rated 20-B instead of the required 5-B
- D. The extinguisher is stored in a bracket below the gunwale
Why B is correct
33 CFR §175.310(a)(4)(ii) requires that the lock pin be firmly in place as a condition of good and serviceable working condition. A missing lock pin renders the extinguisher non-compliant regardless of gauge reading.
Cited:33 CFR §175.310