Question 16 FCP01 - First Class Pilot

The Correct Answer is C 1. **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 and Inland Rules) are specifically designed to be followed when visibility is impaired. Rule 19 states: “This Rule applies to vessels **not in sight of one another when navigating in or near an area of restricted visibility.**” This means a vessel must apply these rules not only when it is already experiencing restricted visibility (e.g., in a fog bank) but also when it is approaching or operating near such an area, as a preventative measure. 2. **Why the other options are incorrect:** * **A) only if they have operational radar:** This is incorrect. While radar is a critical tool for navigating in restricted visibility, the rules apply to *all* vessels, regardless of their equipment. Vessels without radar must comply just as strictly, often relying more heavily on sound signals and reduced speed. * **B) in sight of one another in fog:** This is incorrect. If vessels are in sight of one another, they apply the Rules for Vessels in Sight of One Another (Rules 11–18, regarding approaching, crossing, and overtaking), even if they are in fog. Rule 19 explicitly applies only when vessels are **not** in sight of one another. * **D) only if they are showing special purpose lights:** This is incorrect. The application of restricted visibility rules is determined by the environmental condition (poor visibility), not by the specific type of lights a vessel is displaying. All vessels, regardless of their status (power-driven, sailing, fishing, etc.), must follow Rule 19 in these conditions.