Question 616 Rules of the Road

The correct answer is C) southwest (225°). The red sidelight indicates that the vessel is heading to the right of your position. Since the bearing of the red sidelight is NW 315°, the vessel must be heading in the southwest direction, which is 225°. This is because the red sidelight is used to indicate the port (left) side of a vessel when viewed from behind. The other options are incorrect because: A) east (090°) is the wrong direction, D) west (270°) is the opposite direction, and B) northwest (315°) is the same direction as the bearing of the sidelight, which would indicate the vessel is traveling towards you.