BOTH INTERNATIONAL & INLAND What is the required fog signal for a manned vessel being towed at night?

Correct Answer: Option A — One prolonged followed by three short blasts

Rule 35(c) mandates that a vessel being towed, or if manned, the last vessel of the tow, shall sound one prolonged followed by three short blasts at intervals of not more than two minutes. This signal identifies the presence of the towed unit to other vessels in restricted visibility.