Question

question 9 of 10
when encountering another vessel in darkness or reduced visibility, what is indicated by the presence of only a visible white light?
a you are approaching the stern of another vessel and may be overtaking it
b you are approaching a powerboat head - on
c you are approaching the starboard (right) side of another vessel
d you are approaching the port (left) side of another vessel

Explanation:

In boating, different lights have specific meanings. A white light at the stern (rear) of a vessel is used to indicate the stern. When you see only a white light in darkness or reduced visibility, it means you are approaching the stern of another vessel and may be overtaking it. A powerboat head - on would show both red and green lights (port and starboard) along with a white light. Approaching the starboard or port side would show a green (starboard) or red (port) light respectively along with a white light.

Answer:

A. You are approaching the stern of another vessel and may be overtaking it