Question 6 TV03 - Towing Vessels - Western Rivers

The Correct Answer is C. **Explanation for C being correct:** Option **C** correctly represents the length of a vessel as defined by the International Regulations for Preventing Collisions at Sea (COLREGs) and Inland Rules. While COLREGs/Inland Rules do not strictly define "length" for all purposes (like navigation lights or sound signals, which are based on specific lengths like "less than 50 meters" or "12 meters or more"), the most standard and universally accepted measure for a vessel's overall dimension—which is often implicitly used when discussing general vessel characteristics or dimensions—is the **Length Overall (LOA)**. Length Overall is the distance between the forwardmost point of the hull or structure and the aftmost point of the hull or structure, which is accurately depicted by line C spanning the entirety of the vessel's hull. **Explanation for other options being incorrect:** * **A) A is incorrect:** Line A represents the length of the vessel measured at the waterline (LWL). This measurement is primarily used in naval architecture and stability calculations, but it is not the standard definition for the overall length of the vessel used in general rules or definitions. * **B) B is incorrect:** Line B represents the vessel's beam or breadth, which is the widest point of the vessel. This measures the vessel's width, not its length. * **D) D is incorrect:** Line D represents the length between perpendiculars (LBP). This is a technical measurement used in shipbuilding and design, typically measured from the forward perpendicular (bow) to the after perpendicular (rudder stock or sternpost). It excludes certain overhangs and is not the vessel's Length Overall (LOA).