🔍 Key Concepts

• Fuel system safety requirements in 46 CFR for small passenger/commercial vessels • What device would let you quickly stop fuel flow in an emergency like a fire? • Difference between monitoring devices (gauges/meters) and control devices (valves/closures)

💭 Think About

• If there is an engine-room fire, which device in the list would most directly help you limit the fuel feeding the fire? • Which of these items is specifically mentioned in safety rules as something that must be installed in the fuel line near the engine? • Which options are primarily for information/diagnostics versus actually controlling or stopping the fuel flow?

✅ Before You Answer

• Identify which option is a control device that can physically stop fuel flow, not just measure or clean it. • Think about fire safety drills: what do you operate to secure fuel to the engine? • Recall that regulations focus on being able to quickly secure fuel in an emergency — which choice fits that purpose best?