What is a common failure mode in anchor systems that must be guarded against?

• A. Rope color fading due to sunlight.
• B. Movement or slippage of the anchor, failure of the anchor point, or improper load distribution causing a single-point failure.
• C. Rope becoming stiff.
• D. Over-tightened shackle.

Answer: (B)

The key issue is keeping the anchor system strong, stable, and sharing the load so nothing fails at a single weak point. A common failure mode is when the anchor system moves or slips under load, when the anchor point itself fails, or when the load isn’t distributed across multiple anchors, creating a single-point failure.

Movement or slippage happens when an anchor isn’t secured well enough or when the load direction challenges the rock, gear, or protection. Guarding against this means using redundant anchors and proper equalization so the force is carried by more than one piece, and verifying the setup before applying weight.

Anchor-point failure occurs if the natural feature or hardware can’t sustain the force or is compromised by rock quality, wear, or poor selection. Guarding against it involves choosing solid anchors, inspecting for integrity, using hardware rated for the load, and having backup points ready.

Improper load distribution leading to a single-point failure means all the force goes through one element. Guarding against this means configuring the system so load is shared among at least two independent anchors with a proper load path that avoids overloading any single piece.

So, the best practice is to build redundancy and ensure the load is distributed across multiple, well-supported anchors. The other options describe issues like rope appearance or stiffness or a hardware detail that don’t reflect the common, critical failure modes of anchor systems under load.