Question 6 RVR01 - Master of Unlimited Tonnage

The Correct Answer is C ### Explanation for C (Correct Option) Option C represents the **Length Overall (LOA)** of the vessel. The length of a vessel as defined by the International Regulations for Preventing Collisions at Sea (COLREGs) and subsequent Inland Rules, is determined by its maximum longitudinal dimension (LOA). This definition is critical for determining compliance with various rules, especially those concerning required lighting, sound signaling appliances, and overall classification of the vessel size. ### Explanation for Other Options (Incorrect Options) **A) A is Incorrect:** A typically illustrates the **Length Between Perpendiculars (LBP)** or possibly the Length on Waterline (LWL). These measurements are used by naval architects for stability, displacement calculations, and construction purposes, but they do not represent the official "length" used for regulatory compliance under the COLREGs/Inland Rules. **B) B is Incorrect:** Similar to A, B usually represents a specific technical length measurement (such as LBP or LWL) or a partial length. It is shorter than the Length Overall (C) and is not the measure used by regulatory authorities to define the vessel's size for mandatory equipment requirements. **D) D is Incorrect:** D typically represents a dimension other than the vessel's longitudinal length, such as the beam (width), depth, or a specific measurement related to freeboard or draft. It does not represent the overall length of the vessel used for regulatory definition.