INTERNATIONAL ONLY Which vessel would sound a fog signal of one prolonged and two short blasts?

Correct Answer: Option B — A vessel constrained by her draft

Rule 35(c) mandates that a vessel constrained by her draft, a vessel restricted in her ability to maneuver, a vessel engaged in fishing, or a vessel engaged in towing must sound one prolonged and two short blasts at intervals of not more than two minutes while in restricted visibility.