2024 AK CDL Practice Test: Class C - Test 5 Based on 2024 AK CDL Handbook 3. Every ____ hours (or 150 miles, whichever comes first) you should check to ensure your cargo is secure. A 2 B 4 C 5 D 3 E 6 Next More 3/29 Progress 0 Errors Restart Next Next Class C - Test 5 Back to Test List Class C - Test 4 Bus - Test Challenge Library 12 More AK CDL Practice Tests 1 Class A - Test 1 2 Class A - Test 2 3 Class A - Test 3 4 Class A - Test 4 5 Class A - Test 5 6 Class A - Test 6 7 Class A - Test 7 45 Bus - Test 46 Bus - Test 2 47 Bus - Test 3