Question 31 UFV01 - Master - Uninspected Fishing Vessels

The Correct Answer is C **Why option C is correct:** The illustration D010RR depicts a vessel displaying a black diamond shape. According to the International Regulations for Preventing Collisions at Sea (COLREGs), Rule 24 (Towing and Pushing), 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, shall exhibit "a black diamond shape where it can best be seen." This shape serves as a day signal to alert other vessels to the presence of a lengthy tow, necessitating caution and adequate maneuvering room. **Why the other options are incorrect:** * **A) Is at anchor:** A vessel at anchor displays one (or two, depending on length) black ball shape(s) as a day signal, not a black diamond shape. * **B) Is not under command:** A vessel not under command displays two black ball shapes, vertically in a line, as a day signal, not a black diamond shape. * **D) Has a tow that is carrying hazardous cargo:** While vessels carrying dangerous or hazardous cargo may have specific signaling requirements in certain ports or jurisdictions, the primary international day signal (the black diamond shape) specifically signifies the length of the tow exceeding 200 meters, irrespective of the cargo type. There is no international day signal defined solely by the COLREGs for towing hazardous cargo.