Which of the following is NOT listed as a factor affecting a rope's strength?

• A. Knot or bend in the rope
• B. Age of the rope
• C. Abrasion and rubbing on objects
• D. Rope color

Answer: (D)

When evaluating rope strength, the important factors are how the rope is used and its condition. A knot or bend creates stress concentrations that weaken the rope because the fibers are loaded more sharply and the effective strength is reduced. Age can degrade fibers over time, making the rope less capable of carrying loads. Abrasion and rubbing on objects wear away fibers and reduce the rope’s diameter and strength. Rope color, however, is cosmetic and does not change the material properties or how it carries a load. So color doesn’t affect strength, while the other factors do.