🔍 Key Concepts

• 46 CFR Subchapter T – Small Passenger Vessels (look in machinery and exhaust system sections) • Purpose of a dry exhaust versus a wet exhaust and what hazards each presents • Protection of combustible materials near hot exhaust components

💭 Think About

• Which choice directly addresses the biggest safety risk from a hot, uncooled dry exhaust pipe inside a small passenger vessel? • Look at which options are "nice to have" versus which are specifically required by regulation for fire prevention. • Ask yourself: does the regulation focus more on keeping water out, controlling airflow, or preventing ignition of nearby structure and furnishings?

✅ Before You Answer

• Verify in 46 CFR that the requirement you pick is explicitly tied to exhaust systems on small passenger vessels, not just general machinery spaces. • Check which answer deals directly with preventing ignition of combustible bulkheads, ceilings, or joiner work. • Confirm whether items like rain caps or automatic dampers are actually mandated or just common design features.