Question 237 Rules of the Road

The correct answer is B) both sidelights of a vessel dead ahead of you. In a head-on situation at night, you would see the both the red and green sidelights of the vessel ahead of you, indicating that the vessels are approaching each other head-on. This is in accordance with the International Regulations for Preventing Collisions at Sea (COLREGS), which state that in a head-on situation, each vessel shall alter course to starboard to avoid collision. The other options are incorrect because: A) you would only see one sidelight and a masthead light if the vessel was not directly ahead of you; C) you would only see one sidelight if the vessel was not directly ahead of you; and D) you would see a range light in addition to the sidelight and masthead light if the vessel was not directly ahead of you.