USCG Exam Practice · Fire extinguishers — types, ratings, requirements
A recreational vessel more than 65 feet in length has main engines producing a combined 2,400 brake horsepower. In addition to the portable extinguishers required by gross tonnage, how many 20-B fire extinguishers must be carried in the machinery space?
- A2
- B3✓ correct
- C4
- D6
Why B is correct
33 CFR §175.320(b)(2)(i) requires one 20-B extinguisher for each 1,000 brake horsepower or fraction thereof. 2,400 BHP divided by 1,000 yields 2 full units plus a fraction, requiring 3 extinguishers total.
Cited:33 CFR §175.320
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