Coast Guard Exams
Question 3385Deck General70% to pass

While a MODU is underway, a look-out must be maintained _______________.

AI Explanation
The correct answer is D) at all times. According to the US Coast Guard regulations, a look-out must be maintained at all times while a Mobile Offshore Drilling Unit (MODU) is underway, regardless of the time of day, presence of other vessels, or visibility conditions. This requirement is outlined in the International Regulations for Preventing Collisions at Sea (COLREGS), which are adopted and enforced by the US Coast Guard. Maintaining a continuous look-out is essential for the safe navigation and collision avoidance of the MODU. The other options (A, B, and C) are incorrect because they suggest that the look-out requirement is limited to specific situations, which is not the case. The look-out must be maintained at all times, as stated in the correct answer.

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