Question 12 GLI07 - OUPV

The Correct Answer is A **Why Option A is Correct:** This scenario involves restricted visibility (implied by hearing a fog signal) and potential risk of collision (since the vessel is forward of your beam, indicating a bearing that may not be changing significantly, and the rule explicitly states "Risk of collision may exist"). Rule 19(e) (Conduct of Vessels in Restricted Visibility) of the International Regulations for Preventing Collisions at Sea (COLREGs) dictates the action to be taken when a vessel hears the fog signal of another vessel forward of its beam and risk of collision exists. The rule states: "If a vessel determines that risk of collision exists, she shall take avoiding action... If necessary, she shall take all way off." This is the mandatory, primary action required under the specific circumstances described to mitigate risk when the proximity and bearing of the other vessel are uncertain but concerning. **Why Other Options Are Incorrect:** * **Option B (stop your engines):** While stopping the engines is often a component of "taking all way off," it is not the complete or required action itself. Rule 19 demands taking **all way off**, which may necessitate stopping and reversing engines, or simply waiting for the vessel to slow down. Stopping the engines alone does not guarantee taking all way off and is insufficient to fulfill the mandatory requirement. * **Option C (begin a radar plot):** Rule 19(d) requires the observer to "determine if a risk of collision exists" by using radar equipment. While you should certainly be using radar and potentially plotting (or using an equivalent electronic method like ARPA), the requirement to **begin** a plot is an informational and preventative step. The question asks what action is required *after* you hear the signal and *risk of collision may exist*—this necessitates a physical maneuver (A) under Rule 19(e), not just an informational gathering process (C). The required navigational action takes precedence once risk is confirmed or suspected. * **Option D (All of the above):** Since options B and C are not the primary, mandatory actions required by Rule 19(e) under these specific conditions, this option is incorrect.