What does effective edge lighting help inspectors do during MPT?

Effective edge lighting plays a crucial role in Magnetic Particle Testing (MPT) by improving the visibility of surface defects. By illuminating the edges of the inspection area, inspectors can better identify indications that may be missed under standard lighting conditions. This enhanced visibility decreases the chances of missing defects, such as cracks or voids, which might not otherwise be easily discernible.

While speeding up the inspection process or addressing aesthetic concerns could be seen as potential benefits of proper lighting techniques, they are secondary to the primary purpose of ensuring that defects are detected. Effective edge lighting is primarily about improving the clarity and visibility of the inspection area to support thorough and accurate evaluations. Therefore, the correct answer highlights the importance of this visual enhancement in minimizing oversight during inspections.