Field answer
Direct answer
Liquid surge happens because the liquid keeps moving inside the tank and can push against the vehicle after braking or turning. Use the current equipment manual, code book, employer procedure, and qualified supervision before applying this on live work.
How to use this answer
Read the answer once, then prove it by choosing an answer in a practice question before looking at the explanation. If the miss repeats, tag the domain as Tanker driving and drill a smaller set before returning to mixed practice.