2024 AR CDL Practice Test: Class B - Test 7 Based on 2024 AR CDL Handbook 22. Brakes can get out of adjustment: A If they are hot. B During the winter. C If they are used at all. D If they get wet. Next More 22/29 Progress 0 Errors Restart Next Next Class B - Test 7 Back to Test List Class B - Test 6 HazMat - Test Challenge Library 12 More AR CDL Practice Tests 16 HazMat - Test 17 HazMat - Test 2 18 HazMat - Test 3 19 HazMat - Test 4 20 HazMat - Test 5 21 HazMat - Test 6 22 Passenger - Test 23 Passenger - Test 2 24 Double and Triples - Test 25 Double and Triples - Test 2