EOD Scuba Supervisor Practice Exam 2026 - Free Scuba Supervisor Practice Questions and Study Guide

Line-pull signals are a way divers communicate their status to the surface crew without speaking. The pattern the diver uses is not random; it encodes whether the line is fouled and whether the diver can fix it themselves.

Three pulls, repeated three times in the same cadence, is the signal used to indicate that the line is fouled but the diver believes they can clear it on their own. The cadence is distinct enough to be recognized as a self-clearing fouling signal, so the surface team stays ready to assist if needed, but does not assume immediate intervention is required. Other patterns either lack this clear self-clearing cue or point to different situations, so they don’t convey the same status as clearly.