Final answer:
Level I Practical examinations in accordance with ANSI/ASNT CP-189 are designed to assess an individual's hands-on ability to perform nondestructive testing tasks according to specific procedures, codes, and specifications. They ensure the candidate's competency in performing specific NDT calibrations, evaluations, and recording results under supervision.
Step-by-step explanation:
Level I Practical Examinations According to ANSI/ASNT CP-189
The American National Standards Institute (ANSI) and the American Society for Nondestructive Testing (ASNT) have collaborated to create the ANSI/ASNT CP-189 standard, which provides guidelines for the qualification and certification of nondestructive testing (NDT) personnel. When we talk about Level I Practical examinations as per ANSI/ASNT CP-189, they are intended to be assessments that evaluate an individual’s ability to perform certain nondestructive testing tasks. The practical examinations are designed to test the examinee’s hands-on skills and proficiency in applying specific NDT methods and techniques relevant to the Level I qualification.
The rationale behind these practical exams is to ensure candidates can effectively perform the NDT tasks in accordance with established procedures, codes, and specifications. The Level I individual is typically considered to be qualified to perform specific calibrations, specific NDT, and specific evaluations for acceptance or rejection determinations according to written instructions, and to record results. This level of examination ensures that the candidate can safely and effectively contribute to the inspection process under supervision.