What is the term for the vertical measurement from the springing line to the apex of an arch's inner curve?

Building Materials and Construction MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Building Materials and Constructioncivil-engineering-mcqs › building-materials-and-construction
Published
11 Jan 2019
Last updated
28 May 2026

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Explanation

The vertical distance from the springing line to the highest point on the inner curve of an arch is called the rise. The intrados refers to the inner curve itself, the spandrel is the area between the arch and the rectangular boundary, and the extrados is the outer curve of the arch.

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