2024 AR CDL Practice Test: Class B - Test 7 Based on 2024 AR CDL Handbook 5. When you are transporting cargo, you should check your cargo is secure every _____ miles. A 75 B 250 C 225 D 50 E 150 Next More 5/29 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