Question What is the average driver’s reaction time? Answers 1/16 of a second 1/8 of a second 3/4 of a second Explanation The average driver has a reaction time between three-quarters of a second and one second. At 55 mph, this corresponds to a distance of 61 feet traveled. Take a FREE Practice Test Now This questions appears in the following tests: Iowa Knowledge Test Class A , Nebraska Knowledge Test Class A , South Carolina Knowledge Test Class A , Arizona Knowledge Test Class B , Oklahoma Knowledge Test Class B ,