2024 IL DMV Practice Test 12 Based on 2024 IL Driver's Handbook 14. A chemical test is used to measure A Reaction time. B Driving ability. C Blood alcohol content. D Vision. Next More 14/30 Progress 0 Errors Restart Next Next IL Permit Practice Test 12 Back to Test List IL Permit Practice Test 11 IL Permit Practice Test 13 Challenge Library 12 More IL DMV Practice Tests 1 IL Permit Practice Test 1 2 IL Permit Practice Test 2 3 IL Permit Practice Test 3 4 IL Permit Practice Test 4 5 IL Permit Practice Test 5 6 IL Permit Practice Test 6 7 IL Permit Practice Test 7 8 IL Permit Practice Test 8 13 IL Permit Practice Test 13 14 IL Permit Practice Test 14