California ICC UST Service Technician Practice Exam

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What type of monitoring is required during temporary tank closure?

Visual monitoring
Regular sampling
Electronic monitoring
None required

The correct answer is: Visual monitoring

During temporary tank closure, visual monitoring is required to ensure that the tank remains in a stable condition and does not leak or show signs of deterioration. This encompasses regular inspections of the tank to identify any visible issues such as corrosion, bulging, or leakage. This method serves as a primary way to detect potential failures that could lead to environmental contamination. While regular sampling and electronic monitoring might be useful in certain circumstances, they are not specifically mandated during temporary closure in the same way that visual inspection is required. Regular sampling is more commonly associated with ongoing operational monitoring, while electronic monitoring systems typically apply to active tank operations where constant tracking is necessary. In the case of temporary closure, visual monitoring is essential for maintaining safety and compliance.