What is liquid surge in a tank vehicle?

Pick an answer

1. The forward and backward, or side-to-side, movement of liquid cargo inside a partially filled tank
2. A sudden increase in tire pressure
3. An electrical surge in the vehicle's wiring caused by a short circuit near the tank's sensors, since that is the assumption many drivers make before gaining experience
4. The vehicle's engine suddenly gaining power

Correct!

Not quite. The correct answer is highlighted.