Question

How can you prevent static sparks while filling your boat's fuel tank? fill the tank to the brim. keep the engine running at idle speed. wrap a rag around the fuel spout. keep contact between the tank and the fuel spout?

Answer 1

The correct answer is keep the engine running at idle speed

While filling the fuel tank, keep the nozzle of the fuel-pump hose in contact with the tank opening to prevent producing a static spark. Avoid spilling fuel into the boat's bilge. Also, avoid filling to the brim so as to leave room for expansion.