Question 38 MODU01 - Offshore Installation Manager

INTERNATIONAL ONLY Two power-driven vessels are meeting. What would a two-blast whistle signal by either vessel mean?

A "I am altering course to port"
B "I desire to pass starboard to starboard"
C "I desire to pass port-to-port"
D "I intend to alter course to port"
AI Explanation

The Correct Answer is A **Explanation for Option A (Correct):** The meaning of whistle signals for vessels meeting or crossing is governed by the International Regulations for Preventing Collisions at Sea (COLREGs), specifically Rule 34. A **two short blast** signal means "I am altering my course to port." This signal indicates a clear, immediate action being taken by the signaling vessel. **Why the Other Options are Incorrect:** * **B) "I desire to pass starboard to starboard":** This option uses language that implies a "desire" or proposal rather than a statement of immediate action. While altering course to port in a meeting situation would typically result in a starboard-to-starboard passing, the signal's specific meaning under COLREGs is the action being taken ("I am altering course to port"). Furthermore, if two vessels are meeting and using signals, the standard starboard-to-starboard pass is indicated by a one short blast (I am altering course to starboard). * **C) "I desire to pass port-to-port":** A port-to-port passing is the standard maneuver when meeting end-on and is indicated by a **one short blast** ("I am altering my course to starboard"). A two-blast signal means the opposite maneuver. * **D) "I intend to alter course to port":** This phrasing is similar to A but uses "intend" rather than "am altering" or "I am directing my course." COLREGs Rule 34(a) uses the present tense to denote the commitment to the maneuver: "Two short blasts mean I am directing my course to port." The signal is a statement of execution, not just intention.

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