Question 8 AB01 - Able Seafarer

The Correct Answer is A **Explanation for Option A (Correct):** Option A states "One prolonged and two short blasts at two-minute intervals." This is the required fog signal for a **vessel restricted in its ability to maneuver** (RAM). According to both the International Regulations for Preventing Collisions at Sea (COLREGs) Rule 35(c) and the corresponding U.S. Inland Rules, a vessel engaged in fishing while **at anchor** must indicate its dual status. While at anchor, it must give the bell signal (Rule 35(d) or (f)). However, because it is engaged in fishing, it is also considered a **vessel restricted in its ability to maneuver** (Rule 3(g)) and must sound the signal required for a RAM vessel. When these two requirements conflict, COLREGs Rule 35(c) (and the Inland counterpart) explicitly dictates that a vessel restricted in its ability to maneuver (which includes fishing vessels when operating in a manner that restricts maneuverability) **must** sound: **One prolonged blast followed by two short blasts at intervals of not more than two minutes.** **Explanation of Incorrect Options:** * **B) One prolonged and three short blasts at two-minute intervals:** This signal (one prolonged and three short) is used by a vessel when being towed (towing vessel and tow, if manned) or by a vessel not under command (NUC). It is not the signal required for a vessel restricted in its ability to maneuver (RAM) or a fishing vessel. * **C) A sounding of the bell and gong at one-minute intervals:** The use of the bell (for five seconds) and gong (for five seconds) at one-minute intervals is the requirement for a vessel **100 meters or more in length** when **at anchor** in restricted visibility (Rule 35(f)). While this vessel is at anchor, the more specific Rule 35(c) for RAM/fishing vessels overrides the general anchoring signal. * **D) A rapid ringing of the bell for five seconds at one-minute intervals:** This is the correct signal for a vessel **less than 100 meters in length** when **at anchor** in restricted visibility (Rule 35(d)). Although technically correct for the "at anchor" status (if the vessel is less than 100m), the signal required for a vessel **restricted in its ability to maneuver** (Rule 35(c)) is the overriding requirement for a fishing vessel, which is the sound signal found in Option A.