Question 745 Rules of the Road

The correct answer is A. A 75-meter power-driven vessel underway at night must exhibit forward and after masthead lights. This is because according to the International Regulations for Preventing Collisions at Sea (COLREGS), a power-driven vessel of 50 meters or more in length must exhibit two masthead lights positioned in a line vertically over the fore and aft centerline of the vessel. The forward masthead light and the after masthead light must be positioned as prescribed in the regulations. The other options are incorrect because: B) An all-round white light at the stern is not required for a 75-meter power-driven vessel; C) A red over green light is not the correct light configuration; and D) A single forward masthead light is not sufficient for a vessel of this size, two masthead lights are required.