Certified Welding Inspector (CWI) : Certification :
Q:- Why is it essential to clean the surrounding parent metal adjacent to the weld metal made by MMA(SMAW) which is to be ultrasonically tested?
- Sound waves will not travel though paint
- Remove any rust
- The spatter will impede the contact of the probe and the parent material surface
- Spatter will reflect the back will echo signal and give spurious indications
Q:- When reviewing a radiograph of a weld made by the MAG(GSMAW)process, you notice a very bright white inclusion in the weld, which of the following best describes this indication?
1. Tungsten inclusion
2. Spatter on the cap
3. Copper inclusion
4. It is most likely to be a film mark