Question 57Navigation General

The correct answer is D. Alter course to 060° and ensure that the true bearing decreases. This is the correct answer because the black-yellow-black banded buoy is a special-purpose buoy that indicates a channel or fairway. When a special-purpose buoy is sighted, the proper action is to alter course to ensure that the bearing to the buoy decreases, indicating that you are passing it on the safe side. Altering course to 060° and verifying that the true bearing decreases would accomplish this. The other options are incorrect because they do not properly account for the meaning and proper response to a special-purpose buoy. Altering course to 053° or opening the bearing to the right would not necessarily ensure safe passage of the buoy.