Question 60Navigation General

70% to pass

You are underway on course 142°T when you sight a buoy bearing 105°T. The buoy's white light has a characteristic of continuous very-quick flashing. What should you do to ensure that your vessel remains in the best navigable water?

A pass between the buoy and another buoy showing a fixed white light
B continue on course and ensure that the bearings change to the left
C alter course to port and pass the buoy close aboard to either side
D alter course to port and pass north of the buoy
AI Explanation

The correct answer is D) Alter course to port and pass north of the buoy. This is the correct answer because a continuous very-quick flashing white light indicates a special purpose buoy. The navigational rules require that you pass north (or to the left) of special purpose buoys to ensure you remain in the best navigable water. Altering course to port and passing north of the buoy is the proper action to take in this situation. The other options are incorrect because: A) passing between the buoy and another buoy is not appropriate for a special purpose buoy, B) continuing on course would not place you in the best navigable water, and C) passing close aboard to either side is not the recommended action for a special purpose buoy.

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