Gasoline filling through which opening is unlawful?

Gasoline filling through which opening is unlawful?

• A. Open Dome
• B. Open Vent
• C. Open Hatch
• D. Open Access

Answer: (A)

Gasoline filling must go through a designated fill opening designed for safe product transfer and spill control. An open dome is not a proper fill opening—it’s a space on top of the tank used for access or ventilation and lacks the safety features of a dedicated fill pipe, such as a drop tube and containment. Filling through an open dome can cause splashing, uncontrolled vapor release, and ignition risk, and it makes it hard to gauge the correct fill level. Regulations and safe-operating procedures require filling only through the approved fill pipe with the tank closed to vapors, so using the open dome is unlawful.

Gasoline filling must go through a designated fill opening designed for safe product transfer and spill control. An open dome is not a proper fill opening—it’s a space on top of the tank used for access or ventilation and lacks the safety features of a dedicated fill pipe, such as a drop tube and containment. Filling through an open dome can cause splashing, uncontrolled vapor release, and ignition risk, and it makes it hard to gauge the correct fill level. Regulations and safe-operating procedures require filling only through the approved fill pipe with the tank closed to vapors, so using the open dome is unlawful.