What material is expanded by steam to form a new pipe interior during repair?

Study for the Texas Collections 1 Test. Review questions and in-depth explanations to enhance your understanding and boost confidence. Be prepared for your test!

Multiple Choice

What material is expanded by steam to form a new pipe interior during repair?

Explanation:
In pipe repair, a cured-in-place pipe (CIPP) lining uses a flexible PVC liner that is inserted into the existing pipe and then heated with steam. The steam cures the resin in the liner and causes it to expand and press against the pipe walls, forming a new, smooth interior surface. This is why the material is a PVC liner—the lining itself becomes the new interior pipe surface once cured by the steam. Other options involve external sleeves, wraps, or metal liners that do not create a new interior by steam expansion.

In pipe repair, a cured-in-place pipe (CIPP) lining uses a flexible PVC liner that is inserted into the existing pipe and then heated with steam. The steam cures the resin in the liner and causes it to expand and press against the pipe walls, forming a new, smooth interior surface. This is why the material is a PVC liner—the lining itself becomes the new interior pipe surface once cured by the steam. Other options involve external sleeves, wraps, or metal liners that do not create a new interior by steam expansion.

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