Question

Which one of the following is the shape of test specimens for tensile strength of leather?

• A. Rectangle
• B. Trapezoidal
• C. Dumbbell
• D. Square

Hint:

Dumbbell-shaped specimens are ideal for tensile strength tests as they ensure uniform stress distribution, which is essential for accurate measurement.

Answer 1

The Correct Option is C

Step 1: Tensile Strength Testing of Leather
- Tensile strength testing measures the force required to break a material under tension. For leather, the specimen needs to have a uniform cross-sectional area to ensure that the stress is distributed evenly during testing.

Step 2: Explanation of Specimen Shapes
- Dumbbell-shaped specimens are commonly used in tensile strength testing because they provide a consistent area for applying force. This shape helps ensure that the results are accurate and reflective of the material’s true strength. - Rectangle, trapezoidal, and square specimens are not typically used in tensile strength tests for leather.

Step 3: Conclusion
Thus, the correct shape for tensile strength specimens in leather testing is (C) Dumbbell.