When should you expect to find an insulating flange in a fueling hose?

Correct Answer: Option B — When the terminal is equipped with a cathodic protection system.

Insulating flanges are installed to break the electrical continuity between the vessel and the shore facility. This prevents stray currents from causing arcing, which is critical when the terminal utilizes cathodic protection systems to prevent corrosion of piers and pipelines, as these systems can induce hazardous electrical potentials.