What technological advancement should be utilized for tank monitoring?

The correct choice emphasizes the importance of utilizing automated leak detection systems for tank monitoring. These systems provide continuous, real-time monitoring of tanks, which greatly enhances safety and environmental protection by quickly identifying any leaks or potential issues. Automated systems can detect leaks at a much lower threshold than manual methods and can alert operators immediately, minimizing the risk of spills and potential hazards.

In contrast, manual inspection relies on human input and is less reliable due to the possibility of oversight and irregular checks. Visual indicators serve only as a supplemental method and do not provide the same level of immediate information regarding tank integrity. Using outdated gauges poses significant risks, as they may not accurately reflect current conditions, leading to delayed responses in case of emergencies. Overall, automated leak detection systems represent the best practice for ensuring the safety and integrity of fuel tanks.