Question 97Navigation General

70% to pass

You are steaming along the coast of Ireland in the Irish Sea. You sight a lighted buoy with a white flashing light showing a group of two flashes. The buoy indicates you _______________.

A must pass south of the buoy
B must pass the buoy close to starboard
C should pass well clear on either side of the buoy
D must pass north of the buoy
AI Explanation

The correct answer is C) should pass well clear on either side of the buoy. This is because a white flashing light with a group of two flashes indicates a safe water mark, which means the buoy is marking safe navigable waters. Safe water marks can be passed on either side, and vessels should give the buoy a wide berth to ensure safe passage. The other answer choices are incorrect because: A) passing south of the buoy would unnecessarily restrict the vessel's movement, B) passing close to starboard would be an arbitrary and potentially unsafe restriction, and D) passing north of the buoy would also unnecessarily restrict the vessel's movement when the buoy indicates that the waters around it are safe to navigate.

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