American Society for Nondestructive Testing (ASNT) Radiographic Testing Practice Test

The correct answer is that an NDT Level III may conduct grade examinations for Level I and Level II personnel. An NDT Level III is recognized as an individual with a deep understanding of the principles of nondestructive testing and the ability to interpret test results, including the assessment of personnel competence. This level of qualification signifies that the individual has not only mastered the technical aspects of testing but also possesses the authority to oversee and ensure compliance with standards regarding the qualification and training of NDT personnel.

In contrast, a Level I or Level II practitioner has not attained the necessary expertise or credentials that come with being a Level III. These levels focus on the execution of testing procedures and the analysis of results, rather than the training and evaluation of other personnel. A company representative, while potentially knowledgeable in the process, does not possess the formal NDT Level III certification required to administer and validate the grading examinations comprehensively and impartially. Therefore, the role of conducting grade examinations is distinctly reserved for those at the Level III qualification, ensuring that assessments are performed with the highest level of competence.