Jacketing used on a pipe bend or sweep would require

• A. Metal gores
• B. Plastic caps
• C. Foam fillers
• D. Rubber washers

Answer: (A)

When insulating a pipe bend, the outer jacket must follow the curved surface. Flat sheets can’t wrap smoothly around a sweep, so the jacket is made from curved metal segments called gores. These gores are formed to fit the bend and, when joined, create a continuous, durable shell that protects the insulation from moisture, impact, and weather. They secure around the curve and provide a tight seal along the sweep.

End caps, internal fillers, and gaskets serve different purposes—caps seal ends, foam fillers occupy gaps inside the jacket, and rubber washers act as seals for joints, not the outer jacket around a bend. So the curved metal gores are the appropriate choice for covering a pipe bend.