California ICC UST Inspector Practice Exam

The correct answer indicates that according to PEI 1200, an air compressor should be located at least 20 feet away during Secondary Containment Testing. This distance is established to ensure safety and compliance with industry standards during the testing process.

Maintaining this specific distance is important for several reasons. Firstly, it helps to reduce the risk of interference from the compressor's operation, which can cause vibrations or other disturbances that might affect the accuracy of the testing results. Additionally, having the compressor positioned at this distance minimizes any potential hazards associated with the operation of the compressor itself, such as emissions or the risk of ignition, especially in areas where flammable vapors might be present.

The guideline in the PEI 1200 standard focuses on enhancing safety during examination and minimizing the potential for false readings that could occur if the testing equipment is too close to active machinery that generates noise or pressure changes. This ensures that the integrity of the secondary containment system is properly assessed without external factors influencing the results.