7. Although it is not ideal magnetic particle testing may be carried out on painted/plated components. What is the inherent problem of testing through these coatings? a. Coetings may have a detrimenta effect on the MT equipment b. There may be a reduction in test sensitivity c. There is no inherent problem when testing through coatings d. It is not possible to carry out magnetic particle testing through coatings

**7. Although it is not ideal, magnetic particle testing may be carried out on painted/plated components. What is the inherent problem of testing through these coatings?**The inherent problem of testing through these coatings is that the coatings can interfere with the ability of the magnetic particles to adhere properly to the surface being inspected. This can lead to incomplete detection of defects because the coating may prevent the particles from forming a consistent and visible indication of flaws.**8. Coatings may have a detrimental effect on the MT equipment:**b. There may be a reduction in test sensitivityThis is because the presence of a coating can create a barrier that affects the interaction between the magnetic field and the surface, potentially reducing the effectiveness of the test in detecting subsurface defects.