This sign is used to warn drivers about: 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 This sign is used to warn drivers about: Answers Upcoming intersections. Road construction. Road curves ahead. Explanation Warning signs are usually yellow with black markings. They alert you to conditions that are immediately ahead. This sign is used to warn drivers about an upcoming curve to the right. This questions appears in the following tests: Wisconsin Motorcycle Practice Test 13