How does a material typically respond on a stress-strain curve in relation to the proportional limit?

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

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Subject
Dental Materialsmedical-mcqs › dental-materials
Published
30 Jul 2019
Last updated
28 May 2026

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Explanation

A material behaves elastically up to the proportional limit, meaning it will return to its original shape after the load is removed. Beyond the proportional limit, the material undergoes plastic deformation, causing permanent changes in shape.

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