What is the function of a "stern line"?

• A. A line used to secure the front of the boat
• B. A line used to secure the back of the boat to a dock or mooring
• C. A line used for towing another vessel
• D. A line used to adjust sail trim

Answer: (B)

A stern line is utilized to secure the back of a boat to a dock or mooring. When docking a vessel, securing the stern helps stabilize the boat and prevents it from drifting away from the dock or moving uncontrollably due to wind and current. Properly securing the stern line provides essential control and security for the boat while it is stationary, allowing for safe boarding, unloading, and other activities when at the dock. It plays a critical role in docking procedures and maintaining the safety of the vessel in a marina or anchorage.

The other options reference lines that have different specific uses, such as securing the bow, towing functions, or adjusting sails, which do not align with the primary purpose of a stern line. Understanding the function of various lines on a boat is essential for safe boating practices and effective seamanship.