BOTH INTERNATIONAL & INLAND While underway in a fog you hear a signal of three strokes of a bell, a rapid ringing of the bell, and three more strokes of the bell. Which situation would require a vessel to sound this signal?

Correct Answer: Option B — Aground

Rule 35(g) specifies that a vessel aground shall give the prescribed bell signal and, if required, the gong signal, preceded and followed by three separate and distinct strokes on the bell. This unique signal alerts other vessels that you are aground and unable to maneuver to avoid collision.