Question 46 UFV02 - Mate - Uninspected Fishing Vessels

The Correct Answer is D The required fog signal of **one prolonged blast followed by two short blasts** is mandated by Rule 35 (Sound Signals in Restricted Visibility) of the International Regulations for Preventing Collisions at Sea (COLREGs), which applies equally to both International (COLREGs) and Inland rules (typically mirroring COLREGs Rule 35). This specific signal (one prolonged + two short) must be sounded at intervals of not more than two minutes by: * A vessel **not under command** (Rule 35(c)). * A vessel **restricted in its ability to maneuver** (Rule 35(c)). * A vessel **constrained by its draft** (Rule 35(c)). * A **sailing vessel** (Rule 35(c)). * A vessel **engaged in fishing** (Rule 35(c)). * A vessel **engaged in towing or pushing** (Rule 35(d) specifies this signal *in addition to* the signal required by Rule 35(a) if the tow exceeds 200m). Therefore, since options A, B, and C all describe vessels that fall under the categories listed in Rule 35(c) (or similar inland rules), **All of the above** must sound this signal. ### Explanation of Individual Options: **A) A vessel restricted in its ability to maneuver, at anchor:** * A vessel restricted in its ability to maneuver (RAM) must sound the one prolonged followed by two short blasts (Rule 35(c)). * *Note on At Anchor:* While vessels at anchor typically sound the rapid ringing of the bell (Rule 35(f)), if the RAM vessel is also **restricted in its ability to maneuver** while at anchor (e.g., performing dredging or cable-laying operations), it maintains its RAM status and must sound the RAM signal (one prolonged + two short). Therefore, this option requires the signal. **B) A sailing vessel underway:** * A sailing vessel underway is specifically required to sound the one prolonged followed by two short blasts (Rule 35(c)). **C) A vessel not under command:** * A vessel not under command (NUC) is specifically required to sound the one prolonged followed by two short blasts (Rule 35(c)). **D) All of the above:** * Since A, B, and C are all required to sound this specific fog signal, **D is the correct answer.**