What is the role of inspectors in the MPI process?

The role of inspectors in the Magnetic Particle Inspection (MPI) process is crucial for ensuring that the inspection is performed effectively and accurately. Inspectors are responsible for the correct application of the MPI technique, which involves the careful preparation of the test area, application of the magnetic field, and the use of magnetic particles to reveal flaws. Additionally, the ability to interpret indications—whether they signify defects or not—is a key responsibility of inspectors. Proper interpretation is essential because it directly impacts the assessment of the component's integrity and safety.

While providing training, operating equipment, and documenting findings are important aspects of the overall process, the core function of inspectors focuses on the accuracy and reliability of the inspection itself. They must apply their knowledge and expertise to differentiate between actual discontinuities and false indications, ensuring that the inspection meets quality standards and fulfills safety requirements. This critical function is what makes option B the most relevant and encompassing description of an inspector’s role in MPI.