Question 10 GLI05 - Master or Mate of LT 200 GRT

The Correct Answer is B **Explanation for Option B (Correct):** Option B is correct because it directly follows Rule 13 (Overtaking) of both the International Regulations for Preventing Collisions at Sea (COLREGs) and the Inland Navigation Rules. Rule 13(d) states: "Any subsequent alteration of the bearing between the two vessels shall not make the overtaking vessel a crossing vessel within the meaning of these Rules or relieve her of the duty of keeping clear until she is finally past and clear." Critically, the general responsibility for the conduct of vessels is established by the interaction of Rule 13 (Overtaking) and Rule 17 (Action by Stand-on Vessel). In an overtaking situation, the vessel being overtaken (Vessel B in this case) is the **stand-on vessel**, and the vessel doing the overtaking (Vessel A) is the **give-way vessel**. Rule 17(a)(ii) requires that where one of two vessels is to keep out of the way (the give-way vessel, Vessel A), the other vessel (the stand-on vessel, Vessel B) **"shall keep her course and speed."** Therefore, Vessel B must maintain her course and speed while Vessel A maneuvers to pass safely. **Explanation of Incorrect Options:** * **A) should slow down until vessel "A" has passed:** This is incorrect. Changing speed (slowing down) would violate Vessel B's duty as the stand-on vessel to maintain her course and speed (Rule 17(a)(ii)). This unpredictable action could confuse the give-way vessel (A) and potentially lead to a collision. * **C) may steer various courses and vessel "A" must keep clear:** This is incorrect. Vessel B is the stand-on vessel and must maintain a steady course and speed to allow Vessel A (the give-way vessel) to predict B's movement and safely execute the passing maneuver. "Steering various courses" is the definition of erratic or unpredictable behavior, which is prohibited for the stand-on vessel under Rule 17(a)(ii). * **D) should change course to the right:** This is incorrect. Changing course, even to the right, violates Vessel B's duty as the stand-on vessel to maintain course and speed. The stand-on vessel should only maneuver if collision cannot be avoided by the action of the give-way vessel alone (Rule 17(b)). The primary responsibility for maneuvering and keeping clear lies with the overtaking vessel (A).