🔍 Key Concepts

• 46 CFR Subchapter T requirements for small passenger vessels • Specific fire extinguisher requirements for machinery spaces vs. other spaces • Meaning of B-I vs B-II extinguisher size classifications

💭 Think About

• First, decide whether a machinery space on a small passenger vessel normally needs at least one portable extinguisher located inside that space • Then, think about whether machinery spaces generally require a larger or smaller extinguisher size because of the type of fire risk present (fuel, oil, etc.) • Compare which answer choices include multiple ratings (e.g., B-I, C-I) and decide if that matches how sizes are normally written in 46 CFR for small passenger vessels

✅ Before You Answer

• Verify in 46 CFR 181.500–181.520 (Fire Protection) what is specifically required for the machinery space on small passenger vessels • Check whether the regulation calls for a B-I or B-II sized extinguisher in machinery spaces • Confirm whether the regulation mentions any C-I or C-II designations for small passenger vessel extinguishers, or only the B size class for flammable liquid fires