Before loading a flammable liquid into a tank vehicle, why is a bonding or grounding cable connected between the tank and the loading rack?

Pick an answer

1. To equalize static electricity between the tank and the rack so a spark doesn't ignite vapors
2. To power the loading rack's pump motor
3. To measure how much liquid has been loaded
4. To hold the tank vehicle in place during loading so it can't roll away from the rack, a habit some drivers pick up that examiners specifically watch for

Correct!

Not quite. The correct answer is highlighted.