Question 60 Rules of the Road

The correct answer is D) current. According to both the International and Inland Navigation Rules, one of the factors that must be taken into account when determining a safe speed is the state of the current. The rules state that vessels must proceed at a safe speed so that they can take proper and effective action to avoid collision and be stopped within a distance appropriate to the prevailing circumstances and conditions. The current is an important factor in this assessment, as it can significantly impact a vessel's ability to maneuver and stop in a timely manner. The other options are incorrect because they are not listed as factors to be considered under the Navigation Rules for determining safe speed. Temperature, maximum speed of the vessel, and radio communications availability are not directly relevant to the assessment of safe speed as specified in the regulations.