What equipment is typically monitored for leaks in fuel systems?

Monitoring for leaks in fuel systems is crucial for safety and environmental protection. The correct choice emphasizes that lines and fittings are key components where leaks can commonly occur. Fuel lines and their associated fittings are points of connection that can develop weaknesses or failures due to stress, wear and tear, or corrosion. These leaks can lead to significant fuel loss and pose substantial risks, including fire hazards and environmental contamination.

In contrast, while the tank, pumps, and dispensing units are important components of a fuel system, they are not the sole focus when it comes to monitoring for leaks. Tanks can certainly leak, but the integrity of lines and fittings is often more prone to issues due to their frequent movement and interaction with various conditions. Similarly, pumps and dispensing units can have leaks, but it is essential to monitor the entire system, with particular attention to the lines and fittings as they represent multiple potential leak points. Therefore, comprehensive monitoring includes assessing all potential areas, making lines and fittings a critical aspect of leak detection in fuel systems.