NDE methods determine the size of discontinuities without damaging the weld.

NDE methods determine the size of discontinuities without damaging the weld.

• A. True
• B. False
• C. Not applicable
• D. Sometimes

Answer: (A)

Non-destructive examination is designed to evaluate welds while keeping the part intact, and it can determine the size of discontinuities without damaging the weld. Techniques like radiography and ultrasonics provide sizing information by interpreting images or echo signals, often using calibration standards to translate what is seen into actual dimensions. Radiography yields a two-dimensional image that lets you measure the extent of a flaw, while ultrasonics uses pulse-echo reflections and travel time to gauge the flaw’s depth and through-thickness size. Magnetic particle and liquid penetrant inspections identify surface-breaking flaws and, with reference data or calibration, offer size estimates for those defects. This ability to size defects nondestructively is essential for comparing against acceptance criteria, even though some methods provide more precise measurements than others.

Non-destructive examination is designed to evaluate welds while keeping the part intact, and it can determine the size of discontinuities without damaging the weld. Techniques like radiography and ultrasonics provide sizing information by interpreting images or echo signals, often using calibration standards to translate what is seen into actual dimensions. Radiography yields a two-dimensional image that lets you measure the extent of a flaw, while ultrasonics uses pulse-echo reflections and travel time to gauge the flaw’s depth and through-thickness size. Magnetic particle and liquid penetrant inspections identify surface-breaking flaws and, with reference data or calibration, offer size estimates for those defects. This ability to size defects nondestructively is essential for comparing against acceptance criteria, even though some methods provide more precise measurements than others.