Why is the fuel system grounded?

• A. To increase engine speed.
• B. To dissipate static electricity and prevent a spark which could result in an explosion.
• C. To improve fuel efficiency.
• D. To reduce noise.

Answer: (B)

Grounding the fuel system helps dissipate static electricity that can build up as fuel moves through the lines or during fueling. Static charges can accumulate on hoses and tanks, and a discharge could ignite fuel vapors, so providing a safe path for those charges to flow to the hull or earth reduces the risk of a spark and explosion. This safety measure isn’t about changing engine speed, improving fuel efficiency, or reducing noise.