Question 27 ONC04 - Mate of LT 500-1600 GRT

The Correct Answer is C ### Why Option C is Correct This question specifically addresses the lighting requirements for a power-driven vessel engaged in pushing ahead or towing alongside **INLAND ONLY** on the **Western Rivers** (specifically above mile 106.1 on the Mississippi River). The Inland Navigation Rules define specific requirements for vessels operating on the Western Rivers, often simplifying or modifying the general towing rules (Rule 24). According to **Inland Rule 24(g)**, a power-driven vessel when pushing ahead or towing alongside on the Western Rivers (above the Huey P. Long Bridge): 1. **Shall exhibit the sidelights.** 2. **Shall exhibit two towing lights in a vertical line.** The required masthead lights and stern lights specified in the general rules are replaced or superseded by this specific Western Rivers configuration for pushing/towing alongside, which requires only sidelights and two towing lights (representing the restricted maneuverability/towing status). ### Why Other Options Are Incorrect **A) one masthead light, sidelights, and stern light** This configuration is typically used for a vessel **less than 50 meters** in length that is **not** engaged in towing or pushing (a simple power-driven vessel underway). It does not meet the requirements for a towing vessel on the Western Rivers, which mandates two towing lights. **B) two masthead lights, sidelights, and stern light** This configuration is typically used for a vessel **50 meters or more** in length that is **not** engaged in towing or pushing. It is incorrect because it lacks the required two towing lights and includes a stern light, which is generally not required in the Western Rivers pushing/towing alongside configuration. **D) two masthead lights, sidelights, and two towing lights** While this includes the required sidelights and two towing lights, it incorrectly includes two masthead lights. The Western Rivers configuration specified by Inland Rule 24(g) requires only the sidelights and the two towing lights, omitting the masthead light(s) that would otherwise be required under the general towing rules (International or Inland Rule 24(a)).