X-ray inspection can locate flaws at any depth within a weld.

X-ray inspection can locate flaws at any depth within a weld.

• A. True
• B. False
• C. It can locate only surface flaws
• D. It cannot locate any flaws

Answer: (B)

X-ray inspection uses penetrating radiation to project an image of the weld’s interior, showing discontinuities where the material’s density or thickness changes along the beam path. This creates a two-dimensional view of a three-dimensional object, so depth information is collapsed into a single image. Because of that, not every flaw is guaranteed to be visible at any depth. A flaw located deep inside the weld can be hidden by other features in the same projection, and very thick sections can attenuate the rays enough that small deep flaws become hard to detect. To improve detection of deep or subtle flaws, inspectors may use different energies, multiple viewing angles, or additional methods such as ultrasonic testing or CT scanning. So the statement isn’t true: X-ray inspection can reveal internal flaws but not guaranteed at all depths within a weld.

X-ray inspection uses penetrating radiation to project an image of the weld’s interior, showing discontinuities where the material’s density or thickness changes along the beam path. This creates a two-dimensional view of a three-dimensional object, so depth information is collapsed into a single image. Because of that, not every flaw is guaranteed to be visible at any depth. A flaw located deep inside the weld can be hidden by other features in the same projection, and very thick sections can attenuate the rays enough that small deep flaws become hard to detect. To improve detection of deep or subtle flaws, inspectors may use different energies, multiple viewing angles, or additional methods such as ultrasonic testing or CT scanning. So the statement isn’t true: X-ray inspection can reveal internal flaws but not guaranteed at all depths within a weld.