2024 WA CDL Practice Test: All - Test 3 Based on 2024 WA CDL Handbook 12. Every ____ miles (or every three hours, whichever comes first), you should make sure the cargo is secure. A 250 B 225 C 150 D 50 Next More 12/29 Progress 0 Errors Restart Next Next All - Test 3 Back to Test List All - Test 2 Tank and Hazmat - Test Challenge Library 12 More WA CDL Practice Tests 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 44 Class C - Test 5 45 Bus - Test 46 Bus - Test 2 47 Bus - Test 3