Question 16 UFV01 - Master - Uninspected Fishing Vessels

The Correct Answer is C. **Why option C ("navigating in or near an area of restricted visibility") is correct:** The rules governing the conduct of vessels in restricted visibility (Rule 19 of the COLREGs – International Regulations for Preventing Collisions at Sea) apply universally to **all vessels** navigating in or near an area of restricted visibility, regardless of whether they are on international (high seas) or inland waters (provided the governing inland rules adopt Rule 19, which is standard). The core purpose of Rule 19 is proactive: vessels must take precautions *before* a collision situation arises when sound signals cannot be heard or objects cannot be seen, or when they are approaching an area where visibility is poor. **Why the other options are incorrect:** * **A) only if they have operational radar:** This is incorrect. While radar is a powerful tool addressed in Rule 19, the obligations (such as reducing speed, listening for signals, and making sound signals) apply to **all vessels** in restricted visibility, including those without radar. * **B) in sight of one another in fog:** This is incorrect. Rule 19 applies precisely when vessels are **not** in sight of one another. If vessels are in sight of one another (even if in fog), the Rules of Section II (Rules 11-18, Conduct of Vessels in Sight of One Another) would apply, not the strict provisions of Rule 19. * **D) only if they are showing special purpose lights:** This is incorrect. The requirement to follow rules for restricted visibility applies to all types of vessels (power-driven, sailing, fishing, etc.). Special purpose lights are only used by specific vessels (e.g., vessels constrained by draft, trawling, or not under command) and have no bearing on the applicability of the restricted visibility rules (Rule 19).