Which of the following is a common method for inspecting welds?

Radiographic testing is a widely recognized method for inspecting welds, as it allows for the detection of internal defects that are not visible on the surface. This non-destructive testing technique utilizes X-rays or gamma rays to create an image of the weld joint on a film or digital detector. Radiographic testing can reveal issues such as cracks, voids, and inclusions, providing critical information about the integrity of the weld.

While other methods, such as magnetic testing, are also used in some contexts, they are generally suited for detecting surface and near-surface discontinuities in ferromagnetic materials rather than internal flaws found within the weld itself. Laser cutting and electroplating are processes that pertain to fabrication and surface treatment, respectively, rather than inspection methods. Thus, radiographic testing stands out as the preferred approach for comprehensive weld evaluations in various industries.