Question 104 Rules of the Road

The correct answer is A) She must use this equipment to obtain early warning of risk of collision. This is correct because the International Regulations for Preventing Collisions at Sea (COLREGS) Rule 7 states that "Every vessel shall use all available means appropriate to the prevailing circumstances and conditions to determine if risk of collision exists." Operational radar is considered one of the "available means" that must be used to assess the risk of collision, regardless of visibility conditions. The other options are incorrect because: B) A vessel is still required to maintain a proper lookout even with operational radar, C) Radar must be used at all times, not just in restricted visibility, and D) The use of radar does not necessarily mean the vessel can safely operate at a greater speed.