Question 11 ONC05 - Master or Mate of LT 200 GRT

The Correct Answer is B **Explanation of Option B (Correct):** Option B is correct based on the Rules of the Road (COLREGs – International Regulations for Preventing Collisions at Sea, and Inland Rules). 1. **Required to Maintain Course and Speed:** Rule 17(a)(i) states that where one vessel is to keep out of the way (the give-way vessel), the other vessel (the stand-on vessel) **shall keep her course and speed**. This predictability is crucial for collision avoidance. 2. **May Take Action to Avoid Collision:** Rule 17(b) is the critical caveat, often referred to as the "four-step rule" or the "last-ditch action." It states that the stand-on vessel **may** take action to avoid collision as soon as it becomes apparent that the give-way vessel is not taking appropriate action. Furthermore, Rule 17(c) mandates that if, for any reason, the stand-on vessel finds herself so close that collision cannot be avoided by the action of the give-way vessel alone, she **shall** take such action as will best aid in avoiding collision. This ensures safety takes precedence over privilege. **Explanation of Incorrect Options:** **A) required to give-way in a crossing situation** This is incorrect. A power-driven stand-on vessel, by definition, is the **privileged** vessel in the crossing situation and is required to **maintain** course and speed, while the other vessel (the one that sees the other vessel to its starboard side) is the give-way vessel. **C) required to sound the first passing signal in a meeting situation** This is incorrect. While passing signals (one or two short blasts) are used in a meeting situation, they are signals of intent to direct the **give-way** vessel's movement, not the stand-on vessel's duty. The initial passing signal is typically sounded by the vessel proposing the maneuver, which, in a meeting situation, is often the vessel that must direct how the passing occurs, though both vessels must agree using sound signals. The stand-on rule primarily applies to crossing situations; in a meeting situation, both vessels are typically required to alter course to starboard to pass port-to-port (Rule 14), making the designation of "stand-on" and "give-way" less rigid than in crossing scenarios. **D) free to maneuver in any crossing or meeting situation as it has the right of way** This is incorrect. The stand-on vessel is explicitly **required** to maintain course and speed to maintain predictability (Rule 17(a)(i)). The stand-on status gives it the right of way but strictly limits its actions initially; it is **not** "free to maneuver" until the give-way vessel fails to act appropriately or collision is imminent.