Magnetic Particle Inspection Level 2 Practice Exam

What is necessary after performing a head shot using the wet continuous method before conducting a coil shot?

1. Remove all residual wet magnetic particle fluid from the part

2. Demagnetize the part between the head and first coil shot

3. Place the part in the coil and continue after evaluating the head shot indications

4. None of the above

The correct answer is: Place the part in the coil and continue after evaluating the head shot indications

In Magnetic Particle Inspection, after performing a head shot using the wet continuous method, it is essential to evaluate the indications obtained from the head shot before proceeding with the coil shot. This evaluation allows the inspector to confirm the presence and relevance of any indications detected during the magnetic particle inspection process. By placing the part in the coil and continuing the inspection after evaluating the head shot indications, the inspector can ensure that any significant defects indicated by the head shot are thoroughly assessed while the magnetic field generated by the coil optimally saturates the area of interest. This step can enhance the detection of discontinuities that may occur in different orientations, leveraging the advantages of both methods effectively. The necessity of evaluating the head shot indications ensures that inspectors remain thorough and can discern whether further inspection, like the coil shot, is warranted based on the findings of the head shot. This careful approach improves overall inspection accuracy and safety.