Question 34 ONC06 - Master LT 100 GRT

The Correct Answer is A **Explanation for A (Has a tow that exceeds 200 meters in length):** The illustration D010RR depicts a vessel displaying a diamond shape (specifically, a black diamond day signal). According to the International Regulations for Preventing Collisions at Sea (COLREGs), Rule 24 (Towing and Pushing), a vessel engaged in towing and pushing operations 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 display a diamond shape where it can best be seen. This signal is mandatory for both international and inland waters adhering to COLREGs. **Why the other options are incorrect:** * **B) Has a tow that is carrying hazardous cargo:** There is no specific COLREGs day signal (shape) designated solely for a vessel towing hazardous cargo. While special regulations might apply to such cargo, the diamond shape specifically signifies the length of the tow. * **C) Is at anchor:** A vessel at anchor displays a single black ball forward (Rule 30). The diamond shape is used for towing operations exceeding 200 meters. * **D) Is not under command:** A vessel not under command (NUC) displays two black balls in a vertical line (Rule 27). The diamond shape is used for towing operations exceeding 200 meters.