Final answer:
The guided bend test is a destructive weld test used to evaluate the ductility and soundness of a weld by bending the sample until it fractures or reaches a specific angle.
Step-by-step explanation:
The question posed refers to testing methods for weld quality and asks which among the listed options would be classified as a destructive type weld test. Among the options provided, a. Guided bend is the correct answer as it is a destructive testing method used to evaluate the quality of a weld. In a guided bend test, a sample weld is bent to a specific angle or until it fractures, revealing details about the weld's ductility and soundness. Other methods such as ultrasonic, visual inspection, and eddy current tests are non-destructive and designed to detect flaws without damaging the specimen.