Which of the following is a factor affecting rope strength?

• A. Water and sand/grit
• B. Age of the rope
• C. Rope diameter
• D. Rope length

Answer: (B)

Rope strength changes over time because the fibers themselves degrade with age. As a rope ages, exposure to sun, moisture, heat, chemicals, and repeated loading cycles causes micro-damage to the strands. This damage accumulates, reducing the rope’s tensile strength and its ability to absorb energy, even if the rope looks intact. In practice, manufacturers and inspectors treat age as a key risk factor: older ropes are more likely to fail under load than newer ones, so retirement or replacement is often recommended after a certain period or usage.

Water and grit can contribute to wear by abrading the sheath or introducing contaminants, but they’re more about surface wear than the fundamental weakening that comes from aging. Rope diameter does influence theoretical strength, since a thicker rope can carry more load, but the question focuses on what inherently reduces strength over time. Rope length does not affect the rope’s intrinsic strength.