Question 17

The Correct Answer is B **Explanation for B (Sidelights and a stern light) being correct:** The lighting requirements for vessels being towed are governed by Rule 24(f) of the International Regulations for Preventing Collisions at Sea (COLREGs). Rule 24(f) states that a vessel or object being towed (other than those covered by preceding paragraphs, which include barges and non-conspicuous tows) shall exhibit: 1. **Sidelights** 2. **A stern light** This set of lights (sidelights and a stern light) is the standard requirement for a vessel under way that is not a power-driven vessel (like a sailing vessel), but it applies specifically to the towed vessel in this context to indicate its presence and heading. **Why other options are incorrect:** * **A) One all-round white light:** An all-round white light is typically used for small vessels (less than 7 meters) or vessels at anchor/aground, but it does not convey the vessel's heading or status as being towed alongside. A towed vessel must show its heading. * **C) A masthead light, sidelights, and a stern light:** This combination (masthead light, sidelights, and stern light) is the standard lighting for a power-driven vessel under way. A vessel being towed (and not providing propulsion) is not considered a power-driven vessel under way for lighting purposes and therefore does not show a masthead light. * **D) Only the outboard sidelight and a stern light:** While there are special rules for vessels being pushed ahead (Rule 24(c)) where only the outboard sidelights are required, a vessel being towed alongside (Rule 24(f)) must show both standard sidelights and a stern light to clearly define its full dimensions and heading.