California ICC UST Service Technician Practice Exam

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What is the primary purpose of Automatic Line Leak Detectors?

  1. Detect vapor leaks only

  2. Detect liquid leaks in pressurized systems

  3. Measure fuel levels

  4. Prevent overfilling

The correct answer is: Detect liquid leaks in pressurized systems

The primary purpose of Automatic Line Leak Detectors is to detect liquid leaks in pressurized systems. These devices continuously monitor the pressure within the fuel lines to identify any drops that could indicate the presence of a leak. When a leak occurs, the pressure decreases, triggering the detector to alert operators to the potential problem. This function is crucial for maintaining the integrity of underground storage tank systems and preventing environmental contamination through fuel spills. While vapor leaks are important to monitor, Automatic Line Leak Detectors specifically focus on liquid detection within pressurized environments. Measuring fuel levels and preventing overfilling are also important aspects of fuel management, but they are not the primary role of these detectors. The main goal is to quickly and accurately identify liquid leaks to ensure compliance with safety regulations and protect the surrounding environment.

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