Black ice is: Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question Black ice is: Answers Usually thick – about half an inch or more of ice. Usually thin. Not a hazard when driving. Not really ice. Explanation Black ice is a layer of ice that is thin and clear enough for the road to be visible through it. This makes the road look as if it is merely wet. This questions appears in the following tests: District Of Columbia Class A Knowledge Test Maryland Class A Knowledge Test