Question 141 Rules of the Road

The correct answer is B) A sailing vessel. According to the International Regulations for Preventing Collisions at Sea (COLREGS), Rule 9(b), "A vessel engaged in fishing shall not impede the passage of any other vessel navigating within a narrow channel or fairway." This rule applies to both international and inland waters. Sailing vessels are considered "vessels engaged in fishing" under the COLREGS, and therefore must not impede the safe passage of other vessels that can only navigate safely within a narrow channel or fairway. The other options (A, C, and D) are incorrect because vessels dredging, servicing aids to navigation, and all vessels in general are not exempt from this rule and must still avoid impeding the passage of vessels navigating within a narrow channel or fairway.