Question 34

The Correct Answer is A. A tugboat displaying the shape shown in illustration D010RR is exhibiting the day signal for a vessel engaged in towing where the length of the tow (measured from the stern of the towing vessel to the after end of the tow) exceeds 200 meters. This specific shape, defined by the International Regulations for Preventing Collisions at Sea (COLREGs), Rule 24(a)(i), is a **diamond shape**. Therefore, option A ("Has a tow that exceeds 200 meters in length") is correct. **Why the other options are incorrect:** * **B) Has a tow that is carrying hazardous cargo:** There is no specific mandated day signal (shape) under COLREGs solely for a tugboat towing hazardous cargo. Vessels carrying dangerous goods may display specific lights or shapes required by national regulations or international conventions (like the IMO Dangerous Goods Code) when restricted in their ability to maneuver, but the diamond shape specifically denotes the length of the tow. * **C) Is at anchor:** A vessel at anchor displays a **black ball** where it can be best seen (Rule 30(a)). * **D) Is not under command:** A vessel not under command (NUC) displays **two vertical black balls** where they can be best seen (Rule 27(a)).