🔍 Key Concepts

• Gasoline vapor hazards in engine rooms and bilges • Basic, systematic troubleshooting for an engine that won’t start (air, fuel, ignition, power) • Safe handling of fuel and electrical sparks on a vessel

💭 Think About

• Which choices could create an explosion or fire risk in an enclosed space with gasoline vapors? • When an engine fails to start, what is the safest order to check: power, ignition, fuel, or something else? • Which option reflects a calm, step-by-step safety-first procedure instead of an emergency shortcut?

✅ Before You Answer

• Eliminate any option that puts raw gasoline in the bilge or introduces open sparks near possible vapors • Think about whether the engine space should be ventilated before any checks or tests • Ask yourself which option best covers checking battery, ignition (spark plugs), and fuel system in a controlled way