Question 1932 Deck Safety

You are correct, the answer is A) reduce the rolling of the vessel. The bilge keel is a projection that extends from the hull of a vessel, just below the waterline. Its primary function is to reduce the vessel's rolling motion by creating hydrodynamic forces that counteract the rolling. This helps improve the vessel's stability and seaworthiness. The other answer choices are incorrect. B) adding strength to the bilge is not the main purpose of the bilge keel. C) the bilge keel is not the vessel's main strength member - that role is served by the hull structure. D) protecting the hull when alongside a dock is not the primary function of the bilge keel.