🔍 Key Concepts

• Mooring line names are based on the direction they control movement (in/out from the pier vs. forward/aft along the pier) • Difference between breast lines (right angles to the pier) and spring lines (angles forward or aft along the pier) • How fore and aft motion is defined when a ship is alongside a dock

💭 Think About

• Ask yourself: which lines are mainly stopping the vessel from moving forward and backward along the dock, not in and out from the dock? • Look at each option and picture where those lines run: are they mostly at right angles to the pier, or at an angle running toward the bow or stern? • Which type of line is specifically named and used to prevent surging (longitudinal movement) rather than to hold the vessel in against the pier?

✅ Before You Answer

• Be sure you know the difference between longitudinal movement (fore and aft) and transverse movement (toward/away from the pier). • Verify which lines are normally rigged perpendicular to the dock and which are rigged diagonally forward or aft. • Confirm which named line in the choices is classified as a type of spring line, whose job is to control fore and aft surge.