What describes a dynamic rope’s construction?

• A. Kernmantle
• B. Braided Nylon
• C. Twisted Hemp
• D. Solid Core

Answer: (A)

Dynamic rope uses kernmantle construction. That means a load‑bearing core (the kern) is surrounded by an outer protective sheath (the mantle). The core provides the rope’s strength and its ability to stretch under load, which absorbs fall energy, while the sheath protects the core from abrasion and moisture. This combination gives both safety through elasticity and durability in use. Other described constructions don’t match this setup: braided nylon describes a different rope style without the deliberate core-and-sheath arrangement; twisted hemp is an older natural-fiber rope with little stretch and poor performance for dynamic loading; a solid core implies a single, non-elastic core, which wouldn’t allow the controlled elongation dynamic ropes rely on.