Answer :
Final answer:
The correct answer is option a. The location of Bend Test specimens is predetermined by ASTM standards, which ensure consistent testing conditions and procedures.
Explanation:
The location of Bend Test specimens is predetermined by: a) ASTM standards. The ASTM standards are a collection of protocols and guidelines that define procedures for testing materials, including where to locate Bend Test specimens. These predetermined positions are chosen to ensure consistency and reliability in the testing process. The factors such as weight of the specimen, ambient temperature, and the tester's preference are not the main determinants for the location of Bend Test specimens. Instead, these might influence other aspects of the testing process or preparation of specimens, ensuring they meet the necessary conditions outlined in ASTM standards or other procedural guidelines.