Question 34 GLI07 - OUPV

The Correct Answer is A **Explanation for A (Correct Option):** The illustration D010RR shows a vessel displaying a diamond shape. According to the International Regulations for Preventing Collisions at Sea (COLREGs), Rule 24 (Towing and Pushing), a power-driven vessel when towing or pushing ahead, where the length of the tow measured from the stern of the towing vessel to the after end of the tow exceeds 200 meters, must exhibit a **diamond shape** where it can best be seen. Therefore, the presence of the diamond shape indicates the tugboat has a tow exceeding 200 meters in length. This requirement applies to both International (COLREGs) and Inland waters where the relevant rules are adopted. **Explanation of Incorrect Options:** * **B) Has a tow that is carrying hazardous cargo:** While vessels carrying hazardous cargo may display specific lights or marks in certain situations or ports, the diamond shape specifically signifies the length of the tow, not the nature of the cargo being towed. * **C) Is at anchor:** A vessel at anchor would display a black ball shape (or two black balls for vessels over 50 meters) where it can best be seen, not a diamond shape. * **D) Is not under command:** A vessel not under command (NUC) must display two black balls in a vertical line where they can best be seen, not a diamond shape.