The rule regarding look-outs applies in which condition?

• A. in restricted visibility
• B. between dusk and dawn
• C. in heavy traffic
• D. at all times

Answer: (A)

Maintaining a proper look-out is essential for collision avoidance, and this becomes most critical when visibility is restricted. In restricted visibility, hazards such as other vessels, obstacles, or navigation marks may not be easily seen, so you must rely on sight and hearing and also use all available means (like radar, AIS, and sound signals) to form a full awareness of your surroundings and the risk of collision. The rule is applied especially in restricted visibility because the consequences of missing a danger are much higher due to limited sight. While a look-out is important at all times, exam framing often highlights restricted visibility as the condition that makes keeping a vigilant look-out essential.