Which term describes a continuous filament used to create fabrics and composites?

• A. Warping
• B. Yarn
• C. Weight
• D. Wood treatment

Answer: (B)

A continuous strand used to create fabrics and composites is yarn. Yarn is formed by twisting or otherwise combining fibers into a single, continuous length that can be woven, knitted, or laid up to reinforce a composite material. It can be made from natural or synthetic fibers and may be a single filament or a blend of filaments arranged as filament yarn or spun yarn. In fabrics, yarn is the basic building element that interloops to form cloth; in composites, yarns are used as reinforcement within a polymer matrix. The other terms describe processes or properties rather than the long strand itself—warping is the loom-preparation step, weight is a measurement, and wood treatment is unrelated.