Question 87Navigation General

The correct answer is A) red in color. Under the IALA-B Buoyage System, which is the standard for buoy marking in the United States, a conical buoy will be red in color. This is because conical buoys are used to mark the port (left) side of a channel when entering from seaward. The red color helps mariners easily identify the port-hand side of the channel. The other answer choices are incorrect. Conical buoys are not numbered with odd numbers, and they are not left to port when entering from seaward - they mark the port side of the channel.