Which Article of ASME Section V contains the general requirements for ultrasonic examinations?

The correct choice highlights that Article 4 of ASME Section V outlines the general requirements for ultrasonic examinations. Article 4 specifically deals with non-destructive testing methods, including ultrasonic testing, and provides guidelines for the procedures, equipment, personnel qualifications, and the quality control necessary to ensure reliable results.

Understanding these general requirements is crucial for weld inspection and metallurgy because it establishes a framework for conducting examinations that help detect internal flaws, ensuring the integrity and safety of welded structures. Article 4 covers both the technical and procedural aspects of ultrasonic testing, which is vital for inspectors to effectively evaluate weld quality and identify any potential defects.

While other articles within ASME Section V address different testing methods and their specific requirements, Article 4 is singularly focused on the broad principles and standards applicable to ultrasonic examinations, making it the relevant choice for this question.