Which of the following best describes the requirements for conducting a "Direct Visual Examination"?

The correct description of the requirements for conducting a "Direct Visual Examination" indicates that the inspector's eye must be positioned within a range of 6" to 24" from the surface being inspected and at an angle not less than 30 degrees. This range and angle maximize the inspector's ability to identify surface defects and irregularities effectively.

The specified distance allows for the best combination of visibility and ease of detection for various surface conditions, while the angle ensures that the light reflects adequately off the surfaces to enhance the visibility of defects. Establishing parameters in this way ensures that the visual examination is thorough and meets the quality standards necessary in welding inspection.

Maintaining the eye within these specified limits facilitates a clearer view of any discontinuities such as cracks, voids, or other surface anomalies that could affect the integrity of the weld. Therefore, understanding these requirements is critical for anyone involved in visual inspections within the welding and metallurgical sectors.