Question 29 ONC05 - Master or Mate of LT 200 GRT

The Correct Answer is A. **Why option A ("2") is correct:** This scenario involves a specific regulation under the U.S. Inland Rules of the Road (33 CFR Subchapter E). Rule 30(a)(i) of the Inland Rules generally governs anchor lights for vessels 50 meters or more in length: "A vessel of 50 meters or more in length, when at anchor, shall exhibit forward two all-round white lights where they can best be seen, the one forward being at a higher level than the one aft." This standard rule requires two lights. While Rule 30(d) offers an exception allowing vessels anchored in a "special anchorage area" designated by the Secretary (under Rule 30(g)) to forgo exhibiting anchor lights, this exception only applies if the vessel is **less than 50 meters** in length. Since the barge in the question is **more than 50 meters long**, it does **not** qualify for the exception provided by Rule 30(d) for special anchorage areas. Therefore, it must comply with the standard requirement for vessels 50 meters or more anchored in any location, which mandates showing two all-round white anchor lights. **Why the other options are incorrect:** * **B) 1:** A single all-round white anchor light is typically required only for vessels less than 50 meters in length (Rule 30(a)(ii)) when anchored outside of a special anchorage area. This requirement does not apply to a vessel more than 50 meters long. * **C) 3:** There is no standard requirement under the Inland Rules for an anchored vessel (regardless of size or location) to display three all-round white anchor lights. * **D) None:** Displaying no lights ("None") is an option only for vessels **less than 50 meters** long when anchored specifically within a Secretary-approved special anchorage area (Rule 30(d)). Since the barge is over 50 meters, it must display the required lights.