Which statement describes a combination (poly/nylon) construction?

Which statement describes a combination (poly/nylon) construction?

• A. Combines nylon and polyester material
• B. Continuous filament polyester sheath braided over a nylon core
• C. New England Ropes KM III
• D. Used for life safety rope

Answer: (D)

Understanding poly/nylon construction means recognizing a rope that uses both nylon and polyester in its internal makeup, typically with an outer sheath and an inner core made of different polymers. The best description here is the one that specifies a continuous filament polyester sheath braided over a nylon core. This clearly names both materials and shows how they’re arranged inside the rope, which is the essence of a poly/nylon construction: polyester as the outer layer protecting and interacting with a nylon core. The other options don’t fit as well. Simply saying it combines nylon and polyester is vague about how they’re arranged. Naming a specific rope brand doesn’t describe construction. Describing something as used for life-safety rope focuses on application, not how the rope is built.

Understanding poly/nylon construction means recognizing a rope that uses both nylon and polyester in its internal makeup, typically with an outer sheath and an inner core made of different polymers. The best description here is the one that specifies a continuous filament polyester sheath braided over a nylon core. This clearly names both materials and shows how they’re arranged inside the rope, which is the essence of a poly/nylon construction: polyester as the outer layer protecting and interacting with a nylon core.

The other options don’t fit as well. Simply saying it combines nylon and polyester is vague about how they’re arranged. Naming a specific rope brand doesn’t describe construction. Describing something as used for life-safety rope focuses on application, not how the rope is built.