Question 31 TV01 - Towing Vessels - Oceans or Near Coastal

The Correct Answer is C **Explanation for Option C (Correct Answer):** The shape shown in illustration D010RR is typically a combination of a **black diamond shape** (or sometimes two diamond shapes, depending on the specific international vs. inland rules, but generally symbolized by a diamond when referencing towing length) displayed where it can best be seen. According to the International Regulations for Preventing Collisions at Sea (COLREGs), Rule 24 (Towing and Pushing), a power-driven vessel when towing, the length of the tow of which exceeds 200 meters, shall display **a diamond shape** where it can best be seen. This signal indicates the exceptionally long length of the tow, alerting other mariners to the extra space needed for maneuvering and passing. **Why the other options are incorrect:** * **A) Is at anchor:** A vessel at anchor displays a **black ball** forward (and possibly a second ball aft if over 50 meters in length), not a diamond shape. * **B) Is not under command:** A vessel not under command (NUC) displays **two black balls** in a vertical line, not a diamond shape. * **D) Has a tow that is carrying hazardous cargo:** While vessels carrying hazardous cargo may display specific signals (like the 'B' flag or specific lights/shapes under certain local/inland regulations), the standard diamond shape signals the **length** of the tow, not the nature of its cargo.