Question 12 MODU01 - Offshore Installation Manager

The Correct Answer is A **Explanation for A (Correct Option):** 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) (Conduct of vessels in restricted visibility). Rule 19(e) states: "Except where it has been determined that a risk of collision does not exist, every vessel which hears the fog signal of another vessel apparently forward of her beam, or which cannot avoid a close-quarters situation with another vessel forward of her beam, shall reduce her speed to a minimum necessary to keep her course and shall in any event take all her way off if necessary and navigate with extreme caution until the danger of collision is over." Therefore, taking all way off is the ultimate required safety action when hearing a fog signal forward of the beam and risk of collision exists. **Explanation of Incorrect Options:** * **B) stop your engines:** While reducing speed and maneuvering may involve stopping the engines temporarily, the primary and required action according to Rule 19 is to reduce speed to a minimum and take all way off if needed. Simply stopping the engines is not the full, required regulatory mandate and does not necessarily fulfill the requirement of taking all way off (which might require reversing engines). * **C) begin a radar plot:** Radar plotting is a recommended practice under Rule 19(d) when operating in restricted visibility and using radar, but it is a tool for determining risk and plotting movement, not the mandatory *physical action* required *after* determining risk exists (or may exist, upon hearing the fog signal forward of the beam). The required physical action is reducing speed and taking all way off. * **D) All of the above:** Since options B and C are not the specific, paramount action mandated by Rule 19(e) that must be taken, "All of the above" is incorrect.