Question 450 Rules of the Road

The correct answer is D) No whistle signal should be sounded. According to the International Regulations for Preventing Collisions at Sea (COLREGS), when a vessel is overtaking another vessel, the overtaking vessel (Vessel A) is required to keep out of the way of the vessel being overtaken (Vessel B). In this situation, since Vessel A is overtaking Vessel B and will pass without changing course, Vessel A is not required to sound any whistle signal. The overtaking vessel should simply maintain its course and speed to safely pass the other vessel. The other options are incorrect because they describe whistle signals that are not appropriate for this overtaking situation under the COLREGS.