Cathodic Protection Tester Practice Exam

Which of the following is usually NOT included in routine monitoring of a cathodic protection system?

1. Moisture content around the anodes

2. Structure-to-electrolyte potentials

3. Current output levels

4. Anode wear rates

The correct answer is: Moisture content around the anodes

In the routine monitoring of a cathodic protection system, it is essential to evaluate several critical factors to ensure optimal performance and protection of the structure. Among these, structure-to-electrolyte potentials, current output levels, and anode wear rates are all standard aspects of monitoring. Structure-to-electrolyte potentials are measured to assess the effectiveness of the cathodic protection system. This reading indicates the level of cathodic protection being achieved and helps in determining whether the system is adequately protecting the structure against corrosion. Current output levels are also monitored regularly, as they provide insight into the performance of the anodes and the overall system. This information can help in adjusting the power supply to maintain an effective level of protection. Anode wear rates are important to track since the consumption of anodes directly affects the long-term functionality of the protection system. Regular monitoring ensures timely replacement or maintenance of anodes to avoid system failures. In contrast, moisture content around the anodes, while it may be relevant to overall environmental conditions affecting corrosion, is typically not a routine part of monitoring. The primary focus of routine monitoring is on parameters that directly relate to the cathodic protection system's effectiveness rather than surrounding environmental conditions. Consequently, moisture content is generally