Question 41 RVR05 - Master of LT 100 GRT

The Correct Answer is C **Explanation of Option C (Correct Answer):** Option C, "all-round white or yellow light," is the correct answer based on navigation rules for signaling passing intentions, specifically in inland waters (as indicated by the phrase "INLAND ONLY"). Under the U.S. Inland Navigation Rules (33 CFR Subchapter E), when two power-driven vessels are meeting or crossing in a narrow channel or channel where safe passing requires mutual agreement, they use an approved light signal to indicate their proposed maneuver (such as one whistle blast for port-to-port passing). Rule 34(b) specifies that vessels may employ an additional light signal to accompany the whistle signals. This signal must be an **all-round white or yellow light** and must be exhibited while the vessel is executing the maneuver. The use of yellow light is typically reserved for vessels that are engaged in towing or pushing (when coupled), but both white or yellow lights are legally approved for this purpose. **Explanation of Incorrect Options:** * **A) all-round white light only:** This is partially correct, as an all-round white light is acceptable. However, the rule allows for both white or yellow lights, making option C the more complete and accurate regulatory description for vessels operating under Inland Rules. * **B) alternating white and yellow light:** An alternating light (like a strobe or flashing light) is not the specified regulatory signal for indicating passing intentions. The regulation requires a steady, all-round light. * **D) alternating red and yellow light:** Red lights are generally reserved for status indicators (like NUC or restricted maneuverability) or port sidelights. Using an alternating red and yellow light is not the prescribed signal for passing intentions under Inland Rules.