Unless otherwise posted, the speed limit on state highways is: Before you start the test, please answer the question below regarding your insurance status. Without insurance you will not be able to drive in Ohio Do you currently have car insurance? Yes I have insurance. Great, you're all set! Click here if you still want to compare rates. No, I need insurance and I want to compare options. 2024 Ohio Permit Test Question Unless otherwise posted, the speed limit on state highways is: Answers 25 mph. 35 mph. 45 mph. 55 mph. Explanation Unless otherwise posted, the speed limit on state highways is 55 mph. If a different speed limit is posted, you should follow that speed limit. Pass your DMV Written Test with flying colors Take me to the cheat sheet Ohio This questions appears in the following tests: Michigan Practice Test 3 Michigan Practice Test 30