A tensile test consists of a material that is subject to __________.

• A. rotational forces until deformation
• B. uniaxial tension until failure
• C. uniaxial tension until deformation
• D. rotational forces until failure

Answer: (B)

In a tensile test, the material is pulled along its length in a single direction, applying a uniaxial tensile load and continuing until the specimen breaks. This end condition—failure (fracture)—is what the test is designed to reveal, along with properties like yield strength, ultimate tensile strength, and ductility from the full load–deformation response. Rotational or twisting forces describe a torsion test, not a tensile test, so they aren’t representative. Stopping at deformation would mean measuring only part of the response without reaching fracture, which doesn’t capture the material’s failure behavior.