🔍 Key Concepts

• 46 CFR Subchapter T (Small Passenger Vessels under 100 Gross Tons) – machinery and fuel systems • Safety concerns unique to gasoline propulsion engines (flammability, vapors, ignition sources) • Differences between air‑cooled and water‑cooled engine installations on passenger vessels

💭 Think About

• Ask yourself which option sounds like a specific regulatory limitation that would appear in small passenger vessel rules, rather than a general design preference. • Consider how the use of gasoline and an air‑cooled system might affect fire safety, passenger capacity, and vessel size limits. • Eliminate any choices that sound like they would apply to all radiators or engines (regardless of fuel type), rather than just air‑cooled radiators for gasoline propulsion engines on small passenger vessels.

✅ Before You Answer

• Verify in 46 CFR Subchapter T (Small Passenger Vessels) that there is a specific provision dealing with air‑cooled radiators and gasoline propulsion engines. • Check whether the regulation discusses passenger capacity and vessel length limits in connection with this type of installation. • Make sure the requirement you select is clearly tied to the use of gasoline and an air‑cooled radiator, not just general engine or cooling system requirements.