Non-Destructive Testing (NDT) Practice Test

When using the wet continuous method for magnetic inspection, which statements are true?

1. Only statement A is true

2. Statement A and statement B are true

3. Both A and C are true

4. All statements A, B, and C are true

The correct answer is: Both A and C are true

The wet continuous method for magnetic inspection involves the use of a liquid medium, typically a suspension of ferromagnetic particles, which can reveal defects in ferromagnetic materials by creating a magnetic field. This inspection method is effective for detecting surface and near-surface defects, as the magnetic particles will accumulate in these areas where there is a disruption in the magnetic field. In this context, if statement A is accurate, it likely addresses a fundamental aspect of the wet continuous method, such as its application or limitations. If statement B also holds true, it may provide further details about the conditions or advantages of the method, complementing the information in statement A. Lastly, if statement C expresses an important characteristic specific to the wet continuous method—perhaps detailing a unique feature related to its operation or the type of results obtained—then its truth confirms the significant nature of the method in magnetic particle testing. Together, statements A, B, and C encompass a comprehensive understanding of the wet continuous method, demonstrating its principles and any conditions integral to its effective application in magnetic inspection. This validates the conclusion that all given statements are indeed true, solidifying the choice indicating that every statement contributes essential knowledge about the method.