Question 68 GLI04 - Mate of LT 500-1600 GRT

The Correct Answer is D **Explanation for D (The stern line):** The stern line (or after spring line, which is commonly just referred to as the stern line in general terminology) runs from the stern of the vessel, typically forward and inboard to the pier. This line is generally angled slightly forward and its primary function is to restrict the stern from moving away from the pier, but more importantly, when the vessel is subjected to external forces (like current or wind) pushing it forward, the tension on the stern line is applied directly against the direction of forward travel, effectively checking and stopping the vessel's forward motion. **Why the other options are incorrect:** * **A) The bow line:** The bow line runs from the bow of the vessel, usually aft and outboard to the pier. Its primary function is to restrict the bow from moving away from the pier. When the vessel is pushing *astern* (backward), the bow line checks that motion, but it is not the main line checking *forward* motion. * **B) The stern breast line:** A breast line runs perpendicularly (or nearly so) from the vessel to the pier. A stern breast line's sole purpose is to hold the stern close to the pier and resist lateral movement (movement away from or towards the pier). It provides very little resistance against fore-and-aft (longitudinal) motion. * **C) The forward bow line:** This term is somewhat ambiguous but typically refers to the line running from the bow forward to the pier. Its purpose is to check *backward* motion (motion astern), not forward motion. The line that checks forward motion is the stern line (running aft to the pier).