What is the main purpose of grounding the fuel system?

• A. To dissipate static electricity and prevent a spark which could result in an explosion.
• B. To improve radio reception.
• C. To reduce corrosion.
• D. To maintain fuel temperature.

Answer: (B)

Grounding the fuel system is about preventing ignition from static electricity. As fuel moves or flows, it can build up electrical charges on surfaces and in vapor spaces. If those charges find a spark path, a spark could ignite vapors and cause an explosion. Providing a direct path to ground and bonding components keeps electrical potential equalized, so a stray spark won’t occur where fuel vapors are present. That’s why the main purpose is to dissipate static electricity and reduce the risk of ignition. The other options don’t address ignition rischs or the way grounding works with fuel systems.