Do you currently have car insurance? Insurance is mandatory to drive in California Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question Liquid surge occurs in: Answers Overfilled tanks. Partially-filled tanks. Tanks that have not been used for a period of time. Explanation Surge results from the movement of liquid in tanks that are partially filled. Take a FREE Practice Test Now This questions appears in the following tests: Hawaii Tank ,