Question 732 Rules of the Road

The correct answer is A) a 25-meter power-driven vessel trolling. According to the USCG regulations, vessels less than 20 meters in length may carry their sidelights and stern light in one combined lantern on the fore and aft centerline of the vessel. This applies to power-driven vessels as well as sailing vessels, as long as they are less than 20 meters in length. The other options, such as a 15-meter sailing vessel (B) or a 20-meter fishing vessel (C), do not meet the 20-meter length requirement, so they cannot carry their lights in a single combined lantern. The 15-meter sail vessel propelled by machinery (D) is also not eligible, as the regulation is specific to vessels less than 20 meters in length.