What is the term for the process of measuring the precision of NDT equipment?

The correct answer is calibration. Calibration refers to the process of adjusting and verifying the precision of NDT (Non-Destructive Testing) equipment to ensure that it produces accurate and reliable measurements. This process often involves comparing the measurements taken by the equipment against known standards or reference points to identify any discrepancies. Essentially, calibration ensures that the equipment operates within specified limits and meets required performance criteria.

Validation and verification, while related to quality assurance in measurement processes, have different meanings. Validation involves confirming that a method or system meets necessary requirements and performs intended tasks effectively, while verification is about checking that specific requirements and specifications are met. Inspection, on the other hand, is a broader term that refers to examining the equipment or processes to ensure they comply with defined standards, without specifically focusing on measurement precision. Thus, calibration uniquely addresses the need for accurate measurements in the context of NDT equipment.