2024 OH CDL Practice Test: Tank - Test 5 Based on 2024 OH CDL Handbook 1. How many digits are identification numbers of hazardous materials? A Ten. B Eight. C Six. D Three. E Four. Next More 1/28 Progress 0 Errors Restart Next Next Tank - Test 5 Back to Test List Tank - Test 4 Air Brakes - Test Challenge Library 12 More OH CDL Practice Tests 34 Air Brakes - Test 35 All - Test 36 All - Test 2 37 All - Test 3 38 Tank and Hazmat - Test 39 Tank and Hazmat - Test 2 40 Class C - Test 41 Class C - Test 2 42 Class C - Test 3 43 Class C - Test 4
