Question 79Navigation General

The correct answer is B) has a light characteristic of Q(6). Under the IALA Buoyage System, when you are in the best navigable water, the buoy will have a light characteristic of Q(6), which stands for "quick flashing" with 6 flashes per 10 seconds. This helps you determine that you are in the best navigable water, as this light characteristic is used to mark the preferred channel or deepwater route. The other options are incorrect because: A) A buoy with horizontal yellow/black/yellow banding is used to indicate an isolated danger, not the best navigable water. C) and D) are not light characteristics used in the IALA Buoyage System to mark the preferred channel or deepwater route.