N-Dura Hose Construction is described as having which property?

• A. Fiberglass reinforced core with rubber sheath
• B. High-tensile strength nylon, double-jacketed, rubber-lined hose
• C. PVC-coated canvas hose
• D. Kevlar reinforced outer layer

Answer: (B)

N-Dura Hose is built for a balance of strength, durability, and flexibility. The key is the combination of a high-tensile strength nylon core, a double jacket, and a rubber lining. The nylon core provides strong resistance to stretching and wear without adding excessive weight, which helps with handling on the line. The double jacket shields the core from abrasion and heat, extending the hose’s life in rough firefighting environments while keeping the hose pliable. The rubber lining inside offers a smooth, watertight interior that reduces friction as water flows and helps the hose resist chemical degradation. This specific combination—nylon core for strength, two protective jackets for durability, and rubber lining for a flexible, reliable interior—defines N-Dura. Other options describe different materials or configurations that don’t match this established construction.