True or False: It is permissible to use the grounded conductor from a fuel tank sender unit as the grounding conductor for the tank.

Using the grounded conductor from a fuel tank sender unit as the grounding conductor for the tank is permissible because the grounded conductor serves a dual purpose in this application. It provides a return path for the sender unit's electrical current, while also ensuring that the tank is properly grounded for safety reasons. This is particularly important in preventing static electricity build-up, which can lead to potential hazards, such as sparks in the presence of flammable vapors.

The grounding practices are crucial in marine systems not only for operational effectiveness but also for safeguarding against electrical faults and environmental hazards. It's vital to adhere to standards that ensure both safety and functionality, and in this context, using the sender's grounded conductor for grounding the tank adheres to the principles of good electrical practice as established in ABYC standards.