How many B-II fire extinguishers must be in the machinery space of a 75-foot long fishing vessel propelled by engines with 2200 brake horsepower?

Correct Answer: Option C — 3

High-horsepower machinery spaces demand enhanced fire suppression; a 75-foot fishing vessel operating with 2200 brake horsepower requires 3 B-II extinguishers under 46 CFR requirements.