What mechanical advantage is used to maintain rope strength?

• A. 2:1
• B. 3:1
• C. 4:1
• D. 5:1

Answer: (C)

The idea being tested is how mechanical advantage protects rope strength by spreading the load across multiple rope sections. In a four-part system, four rope segments share the load, so the tension in each segment is the total load divided by four. That means the rope is carrying less stress per strand, helping keep it within its safe working limits while you control the rescue operation. Using more segments reduces per-segment stress even further, but a four-part setup offers a practical balance between safety and manageability.