Question 38 ONC07 - OUPV-Near Coastal

The Correct Answer is A **Explanation for Option A (Correct Answer):** The question specifically asks about the meaning of whistle signals in an **INTERNATIONAL** context (governed by the International Regulations for Preventing Collisions at Sea, or COLREGs). Under COLREGs Rule 34(a)(i), when vessels are in sight of one another, a power-driven vessel operating in a narrow channel or fairway or otherwise being approached by another power-driven vessel must signal its maneuver. A two short blast signal means: **“I am altering my course to port.”** The signal communicates the action the vessel is currently taking. **Explanation of Why Other Options are Incorrect (INTERNATIONAL COLREGs):** * **Option B ("I desire to pass starboard to starboard"):** In the international rules (COLREGs), signals communicate the *action* being taken, not a *desire* for a specific passing arrangement. Furthermore, if a vessel intends to alter course to facilitate a starboard-to-starboard passing, they would signal two blasts ("I am altering course to port"). Stating the passing preference directly is not the function of the two-blast signal. * **Option C ("I desire to pass port-to-port"):** A port-to-port passing is the standard maneuver in a meeting situation. If a vessel intends to alter course to facilitate this (by going slightly to starboard), the appropriate signal would be **one short blast** ("I am altering my course to starboard"). Two blasts (altering course to port) would contradict the port-to-port intent. * **Option D ("I intend to alter course to port"):** While the signal communicates the direction of turn, COLREGs Rule 34(a) uses present tense language—the signal is given "when manoeuvring" and means "I am altering my course." The signal is simultaneous with the commencement of the maneuver, not merely an announcement of future intent (which is the phrasing often used in the Inland U.S. Rules, but not in the International Rules). Therefore, "I am altering course to port" (A) is the precise and correct regulatory wording for the International context.