Magnetic Particle Inspection Level 2 Practice Exam 2026 - Free Inspection Practice Questions and Study Guide

Timing is a critical factor in Magnetic Particle Inspection (MPI) because it directly impacts the effectiveness and reliability of the detection process. During an MPI inspection, the magnetic particles need an appropriate amount of time to accumulate at the defects and form visible indications. If the particles are not allowed enough time to settle or adhere at the areas where the magnetic field is disrupted, the indications may be weak or undetectable, resulting in a higher chance of missing critical flaws.

Optimal performance of the magnetic particles relies on sufficient time for them to respond properly to the magnetic field and align themselves around the discontinuities present in the material being inspected. This ensures that any flaws are not only detected but are also sufficiently highlighted for evaluation. Proper timing enhances the quality of the inspection results, giving confidence in the integrity of the component being examined.