What knot should always be tied in the bitter end of the rope when using it as a lifeline?

• A. Bowline
• B. Figure Eight stopper knot
• C. Double fisherman's knot
• D. Sheet bend

Answer: (B)

The figure-eight stopper knot is the recommended choice to tie at the bitter end of the rope when using it as a lifeline. This knot serves several important purposes in rescue operations. First, it prevents the rope from slipping through the belay device or any other equipment it might be threaded through, ensuring that the lifeline remains secure and effective during the operation.

Additionally, the figure-eight stopper knot is easy to tie, inspect, and untie, even after being subjected to heavy load or strain, making it practical for rescue scenarios where time and efficiency are critical. Its bulkiness also enhances visibility, making it easier to locate the end of the rope, which can be crucial in low visibility situations or when working in high-stress environments.

In contrast, while knots like the bowline, double fisherman's knot, and sheet bend are useful in various circumstances, they do not offer the same level of security and functionality at the bitter end of a rope intended for lifeline use, especially in life-sustaining situations.