Question 35 RVR01 - Master of Unlimited Tonnage

The Correct Answer is B **Explanation for B (More than two vessels crossing) being correct:** The term "special circumstances" under the International Regulations for Preventing Collisions at Sea (COLREGs) (Rule 2: Responsibility) refers to situations that are not explicitly covered by the detailed steering and sailing rules, or where strict adherence to those rules would lead to danger. While Rule 15 covers the common scenario of "two power-driven vessels crossing," the Rules generally address encounters between two vessels. When *more than two* vessels are involved in a close-quarters situation, especially a complex crossing involving three or more vessels where the standard give-way/stand-on roles might conflict or be insufficient, this creates a situation that necessitates the application of Rule 2 (general prudence and seamanship) and thus qualifies as a "special circumstance." The complexity introduced by multiple simultaneous interactions is beyond the scope of the basic crossing rule. **Why the other options are incorrect:** * **A) Speed in fog (Speed in Restricted Visibility):** This is explicitly covered by Rule 19 ("Conduct of Vessels in Restricted Visibility"). While speed must be moderated (safe speed), the regulation clearly dictates the required actions, so it is not a "special circumstance." * **C) Two vessels meeting:** This is explicitly covered by Rule 14 ("Head-on Situation"). The Rules prescribe clear actions (both vessels shall alter course to starboard), so it is a standard scenario, not a "special circumstance." * **D) Vessel at anchor:** The requirements for a vessel at anchor (lights, shapes, and fog signals) are explicitly covered by Rule 30 (Vessels at anchor) and Rule 35 (Sound Signals). Therefore, this is a specifically regulated situation, not a "special circumstance."