Name two common causes knots may fail and how you prevent it.

• A. Knot type doesn't matter; always use any knot.
• B. Rope wear only.
• C. Using the wrong knot for the load and tying the knot incorrectly; prevent by selecting the correct knot and tying it properly and inspecting.
• D. Too tight rope.

Answer: (C)

Two common causes knots may fail are using the wrong knot for the load and tying the knot incorrectly. If the knot isn’t suited to the load, it can slip or come undone under tension; if it’s tied wrong, it won’t hold securely even under the right conditions. Prevent this by selecting the correct knot for the load and direction of pull, and by tying it properly every time—dress the knot, pull it snug, leave adequate tail, and finish with any necessary stopper or backup. Also, inspect the rope and knot area for wear or damage and test the knot with a light load before relying on it.