AMPP Cathodic Protection Technician (CP2) Practice Exam

When addressing the coating of areas of current discharge for stray current mitigation, the preferred action is to avoid applying a coating to these areas. Coating an area subject to current discharge can trap moisture and other contaminants, which may actually exacerbate corrosion rather than mitigate it. Furthermore, coatings can create a barrier that both increases the resistance to current flow and might contribute to the development of uneven electric fields. By not coating these areas, it allows for more effective dissipation of stray currents, potentially reducing corrosion risks and enhancing the overall effectiveness of cathodic protection systems.

The other options involve either applying materials that could interfere with the current discharge management or using primers that may not provide the necessary level of conductivity or moisture management that is critical for the mitigation of stray currents.