Boatswain’s Mate Petty Officer Second Class (BM2) Advancement Practice Exam

The term historically used by the Navy for a three-part mooring line is "doubled up." This terminology reflects the practice of using multiple strands or parts of line to provide additional strength and stability during mooring operations. By doubling up, the mooring line can distribute the load more evenly, which helps to secure the vessel effectively in various conditions. This method is especially important in ensuring that the ship is held firmly in place, particularly in adverse weather or high-tide situations.

The other terms, while they may sound plausible in a maritime context, do not specifically relate to the traditional terminology used by the Navy for a mooring line setup. Understanding these specific terms helps in grasping the procedural and cultural nuances within naval operations.