Question 18 UFV01 - Master - Uninspected Fishing Vessels

The Correct Answer is A **Explanation for A (A vessel constrained by her draft):** According to the International Regulations for Preventing Collisions at Sea (COLREGs), Rule 28 (Vessels constrained by their draft), a vessel constrained by her draft may, in addition to the lights prescribed for a power-driven vessel underway, exhibit **three all-round red lights in a vertical line** where they can best be seen. This configuration of three all-round red lights specifically signals to other vessels that the vessel is constrained by the depth or width of the navigable water and thus has restricted ability to maneuver away from danger. **Explanation of Why Other Options Are Incorrect:** * **B) A vessel moored over a wreck:** A vessel engaged in diving or underwater operations (which might include salvage over a wreck) would typically display the lights prescribed for a vessel restricted in her ability to maneuver (Rule 27(b)), which are **three all-round lights in a vertical line: red, white, red.** They would not use three consecutive red lights unless they were also constrained by their draft. * **C) A vessel aground:** A vessel aground (Rule 30(e)) displays the lights prescribed for a vessel at anchor (an all-round white light forward and/or an all-round white light or equivalent at the stern), and **in addition, two all-round red lights in a vertical line** where they can best be seen. It displays two red lights, not three. * **D) A vessel dredging:** A vessel engaged in dredging or underwater operations (Rule 27(d)) displays the lights for a vessel restricted in her ability to maneuver (red-white-red vertical lights). In addition, if an obstruction exists, it shows **two all-round red lights** on the side where the obstruction exists and **two all-round green lights** on the side where another vessel may pass. It does not use three consecutive red lights.