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The purpose of having a ventilation system in gasoline-powered vessels is to:
A) Remove flammable gases
Having a ventilation system helps to remove any accumulated flammable gases from the engine compartment or other enclosed spaces on the vessel. This is crucial for safety to prevent the buildup of combustible gases that could potentially lead to fire or explosions.
In summary, the ventilation system in gasoline-powered vessels is essential for safety by removing flammable gases and ensuring a safer environment for both the vessel and its occupants.