BOTH INTERNATIONAL & INLAND What is the fog signal for a vessel 75 meters in length, restricted in her ability to maneuver, at anchor?

Correct Answer: Option D — One prolonged blast followed by two short blasts at intervals of not more than two minutes

Rule 35(c) mandates that a vessel restricted in her ability to maneuver, whether underway or at anchor, must sound one prolonged blast followed by two short blasts at intervals of not more than two minutes, rather than the standard anchor bell and gong signals.