Question 1 RVR02 - Master of LT 500-1600 GRT

The Correct Answer is B **Why option B is correct:** The scenario described—hearing the fog signal of a vessel forward of your beam where risk of collision may exist—is governed by Rule 19(e) of the International Regulations for Preventing Collisions at Sea (COLREGs), which applies 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 apparently forward of her beam the fog signal of another vessel, or which cannot avoid a close-quarters situation with another vessel forward of her beam, shall reduce her speed to a minimum at which she can be kept on her course. **She shall if necessary take all her way off and in any event navigate with extreme caution until danger of collision is over.**" Therefore, taking all way off, if necessary, is the explicit and mandatory action required by the rule in this situation. **Why the other options are incorrect:** * **A) stop your engines:** While reducing speed and taking way off often involves stopping the engines, the regulation (Rule 19(e)) specifically mandates reducing speed to a minimum or taking all way off, not simply stopping the engines. Stopping the engines alone might not immediately take all way off a large vessel and might leave the vessel without immediate maneuverability, which is counter to the requirement to navigate with extreme caution. * **C) begin a radar plot:** While good seamanship dictates utilizing all available means (including radar) to assess the situation and determine the risk of collision (Rule 19(d)), the *specific* mandatory action required when you hear a signal forward of the beam and risk exists is the reduction of speed/taking way off (Rule 19(e)). Furthermore, a radar plot may already be underway (as required by Rule 7(b)), and even if it is not, the immediate safety action required by Rule 19(e) takes precedence over the plotting technique. * **D) All of the above:** Since options A and C are not the primary, explicit, mandatory requirement under Rule 19(e), this option is incorrect.