Question 926 Rules of the Road

The correct answer is D) They are sounded at intervals of not more than two minutes. According to the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Navigation Rules, vessels underway and making way in fog must sound their fog signals at intervals of not more than two minutes. This ensures that other vessels in the vicinity can detect their presence and take appropriate action to avoid a collision. The other options are incorrect: A) is too frequent, B) only applies when vessels are in sight of each other, and C) is too limited, as fog signals must be sounded regardless of the approach of another vessel.