What knot is commonly used as a progress capture knot in rope systems?

• A. Bowline
• B. Prusik knot
• C. Figure-eight knot
• D. Clove hitch

Answer: (B)

Progress capture relies on a knot that grips the working rope when you load it but can slide when you relax, so you can move along the rope and stop when needed. The Prusik knot fits this role because it’s a friction hitch tied with a short cord around the main rope; under weight, the wraps cinch tight and hold, preventing further movement, while with slack the knot loosens and slides to let you advance. This self-tightening, adjustable behavior makes it ideal for arresting movement or letting you progress safely along a rope system. The other knots have different purposes: a fixed-loop bowline doesn’t grip the rope, a figure-eight forms a stopper or tie-in point but doesn’t self-tighten along the rope, and a clove hitch can slip under load, making them unreliable for progress capture.