Question 12 GLI03 - Master-LT 500-1600 GRT

The Correct Answer is A **Explanation of Correctness (Option A):** Option A, "take all way off, if necessary," is the action specifically mandated by the International Regulations for Preventing Collisions at Sea (COLREGs) Rule 19(e) regarding the conduct of vessels in restricted visibility. Rule 19 applies when vessels are navigating in or near an area of restricted visibility. If a vessel detects the presence of another vessel forward of the beam and risk of collision exists, Rule 19(e) requires that the vessel take timely action to avoid collision. This action must include, if necessary, reducing speed to minimum steerageway or taking all way off. Taking all way off (stopping the vessel's motion through the water) is the ultimate, required measure when the risk of collision persists and the location or full intentions of the other vessel are not yet clear. **Explanation of Incorrect Options:** * **Option B (stop your engines):** While stopping the engines is often a necessary step in taking all way off (Option A), stopping the engines *alone* does not fulfill the requirement of taking all way off, as the vessel may still coast for a considerable distance. The rule requires controlling the vessel's movement, not just stopping propulsion. * **Option C (begin a radar plot):** Beginning a radar plot is part of the necessary actions under Rule 19(d) for establishing risk of collision and making informed decisions. However, it is an *information gathering* procedure. It is not the ultimate *action required to avoid collision* under Rule 19(e) when the risk is already established and forward of the beam. The prompt asks which *action* must be taken to manage the immediate danger, and that action is reducing speed or taking all way off. * **Option D (All of the above):** Since options B and C are not the primary, required action stated in the rule for avoiding the collision at this stage (Option A is), "All of the above" is incorrect.