Question 17 RVR05 - Master of LT 100 GRT

The Correct Answer is A **Explanation for Option A (Correct):** Option A, "A vessel that you can see from the bridge," is the definition of a vessel being "in sight" as required by the Convention on the International Regulations for Preventing Collisions at Sea (COLREGs). Specifically, Rule 3(l) defines what it means for vessels to be "in sight of one another": > **Rule 3 – General Definitions** > (l) The term 'vessels are in sight of one another' means that one can be visually observed from the other. When a vessel is "in sight," specific rules—such as those governing action to avoid collision (Rule 8) or requirements related to the use of radar (Rule 7)—must be applied based on the visual observation, even if the visibility is impaired (e.g., in fog). **Explanation for Other Options (Incorrect):** * **Option B (A radar target of which you have determined the course and speed):** A radar target is not considered "in sight." Radar provides electronic detection and plotting, which is used when visibility is restricted (Rule 19), specifically because the vessel is *not* in sight. A vessel is only "in sight" when visual contact is established. * **Option C (A vessel from which you can hear the fog signal):** Hearing a fog signal indicates that another vessel is present and operating in restricted visibility (Rule 35), but it does not mean the vessel is visually "in sight." Vessels must use sound signals when they cannot see each other. If the vessel were visually observable, it would be "in sight," irrespective of whether the sound signal was heard. * **Option D (All of the above):** Since options B and C do not meet the legal definition of "in sight," this option is incorrect.