The tank barge on which you are preparing to load petroleum is required to have on board one B-II fire extinguisher. What does NOT meet this requirement?

Correct Answer: Option B — 5 gallon water (stored pressure)

A B-II fire extinguisher classification requires specific foam, carbon dioxide, or dry chemical capacities. A stored pressure water extinguisher (5-gallon) meets Class A requirements but fails to qualify as a B-II marine fire rating.