To prevent a fire on your boat, what preliminary action should you take?

To prevent a fire on your boat, removing all flammable materials is a crucial preliminary action. Flammable materials such as gasoline, oil, or any other combustible substances can significantly increase the risk of a fire onboard. By ensuring that these materials are secured or removed, you reduce the likelihood of an accidental ignition.

While ensuring passengers are onboard, checking fuel sources, and making sure the engine is running properly are all important safety measures, they do not specifically target the root causes of fire hazards. The presence of flammable materials poses an immediate risk, making it essential to eliminate or control these hazards as a priority before engaging in any boating activities.