Question 27 GLI01 - Master-Unlimited Tonnage

The Correct Answer is C. *** ### Explanation of Correct Option (C) Option C is correct because it aligns with the specific lighting requirements established under the Inland Navigational Rules Act (33 CFR), specifically addressing the Western Rivers exception for pushing ahead or towing alongside. **Rule 24(g) (Western Rivers Exemption):** Inland Rule 24(g) states that a power-driven vessel when pushing ahead or towing alongside on the Western Rivers (or in specific harbors and anchorages on the Mississippi River above mile 106.1) shall exhibit: 1. **Sidelights.** 2. **Two towing lights** (yellow) in a vertical line. The rule specifically exempts vessels engaged in this operation in this location from the standard requirement to display the specific masthead lights typically associated with towing vessels elsewhere. Therefore, **sidelights and two towing lights** are the only required lights for this specific operation in this area. *** ### Explanation of Incorrect Options **A) one masthead light, sidelights, and stern light:** This is the configuration for a standard power-driven vessel *not* engaged in towing (Rule 23). It does not include the necessary two towing lights required to identify the vessel as being engaged in towing/pushing on the Western Rivers. **B) two masthead lights, sidelights, and stern light:** This combination is incorrect for towing/pushing. While towing vessels exhibit multiple masthead lights, they must also substitute the white stern light for a yellow towing light (or two towing lights in this Western Rivers scenario), and the count of masthead lights would depend on the length of the tow, which is not specified here. More importantly, it fails to meet the specific requirements of Inland Rule 24(g). **D) two masthead lights, sidelights, and two towing lights:** While vessels engaged in towing typically show masthead lights in other contexts (Rule 24(a)), Inland Rule 24(g) provides a special exception for pushing ahead/towing alongside on the Western Rivers. This special rule explicitly supersedes the masthead light requirement for this specific configuration, meaning the addition of masthead lights makes this configuration non-compliant with the minimum *required* lighting for that area and operation.