Question 109 Rules of the Road

The correct answer is A) Proper use shall be made of radar equipment to determine risk of collision. This is correct because the International Regulations for Preventing Collisions at Sea (COLREGS) state that vessels equipped with radar must use it effectively to determine if a risk of collision exists. Radar provides valuable information about the relative motion of other vessels, which is essential for assessing the risk of collision. The other options are incorrect because: B) Risk of collision must be determined before any action can be taken, but the rules do not require a definitive determination before taking action; C) The half-mile distance is not a definitive criterion for risk of collision; and D) A changing compass bearing does not necessarily mean there is no risk of collision.