Coast Guard Exams
Question 132Navigation General70% to pass

A red triangular daymark marks _______________.

AI Explanation
You are correct, the answer is A) the starboard side of a channel. The red triangular daymark is a lateral navigation aid that marks the starboard (right) side of a navigable channel when entering from the open sea or heading upstream. This is in accordance with the United States Aids to Navigation System, which is based on the lateral buoyage system where red marks the starboard side. The other options are incorrect because: B) the centerline of a channel is typically marked with a green square daymark, C) an area for passing is not marked with a red triangle, and D) a red triangle does not mark a prominent object without lateral significance.

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