What is reaction distance? 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. Question What is reaction distance? Answers The distance traveled between seeing a hazard and physically hitting the brakes The distance traveled between a hazard becoming visible and a driver seeing the hazard The distance traveled before a driver realizes they must brake The distance traveled between physically hitting the brake and coming to a complete stop Explanation Reaction distance is the distance traveled between the moment you mentally recognize a hazard and when you physically hit the brakes. This questions appears in the following tests: Illinois Class B Knowledge Test Kansas Class A Knowledge Test Montana Double Tennessee Class A Knowledge Test