Which statement is true about dynamic kernmantle rope?

• A. It stretches less than 20%
• B. It is often used for hauling systems
• C. It is constructed using natural fibres
• D. It has a braided sheath woven over twisted inner core fibres

Answer: (D)

Dynamic kernmantle rope is built with a core of long, twisted fibers that carry most of the load and give the rope its elasticity, surrounded by a protective outer sheath. The sheath is braided around the core to resist abrasion and wear, while the core provides strength and the ability to stretch to absorb fall energy. This combination—braided outer sheath around a twisted inner core fibers—is the defining construction that makes kernmantle rope suitable for rope rescue and climbing. Because its purpose is to elongate under load to dampen falls, claiming it stretches less than a small percentage isn’t accurate. For hauling systems, a rope with little stretch is preferred, so static ropes (not dynamic) are typically used. Ropes like this are made from synthetic materials, usually nylon, not natural fibers.