Question 28 RVR05 - Master of LT 100 GRT

The Correct Answer is D **Explanation for D (Correct Answer):** The illustration D010RR shows the required dayshape signal for a vessel engaged in towing where the length of the tow (measured from the stern of the towing vessel to the aftermost end of the tow) exceeds 200 meters. According to Rule 24(a)(i) of the International Regulations for Preventing Collisions at Sea (COLREGs), a vessel engaged in towing that exceeds 200 meters in length must display "a diamond shape where it can best be seen." **Explanation for other options (Incorrect):** * **A) Has a tow that is carrying hazardous cargo:** There is no specific day signal defined in COLREGs solely for a tow carrying hazardous cargo. Vessels carrying dangerous goods may display specific signals required by local regulations, but the diamond shape universally signals the length of the tow, not the cargo type. * **B) Is at anchor:** A vessel at anchor must display a black ball (Rule 30). The diamond shape indicates towing over 200 meters. * **C) Is not under command:** A vessel not under command (NUC) must display two black balls in a vertical line (Rule 27(a)). The diamond shape indicates towing over 200 meters.