Which devices are examples of punch testers used to evaluate fabric condition?

Which devices are examples of punch testers used to evaluate fabric condition?

• A. Charpy and Izod testers.
• B. Brinell and Rockwell testers.
• C. Maule and Seybolt punch testers.
• D. Shore and Vickers testers.

Answer: (C)

Punch testers measure how a fabric covering resists puncture or tearing, which helps determine if the material is still serviceable. The Maule punch tester and the Seybolt punch tester are designed specifically for this purpose, applying a controlled puncture to the fabric and showing its remaining strength. The other devices are for metals or general hardness/impact testing (Charpy and Izod for impact energy; Brinell, Rockwell, Shore, and Vickers for hardness). Those tests aren’t used to evaluate fabric condition, so they don’t apply here. Thus, Maule and Seybolt punch testers are the correct choice.

Punch testers measure how a fabric covering resists puncture or tearing, which helps determine if the material is still serviceable. The Maule punch tester and the Seybolt punch tester are designed specifically for this purpose, applying a controlled puncture to the fabric and showing its remaining strength. The other devices are for metals or general hardness/impact testing (Charpy and Izod for impact energy; Brinell, Rockwell, Shore, and Vickers for hardness). Those tests aren’t used to evaluate fabric condition, so they don’t apply here. Thus, Maule and Seybolt punch testers are the correct choice.