2024 OK CDL Practice Test: Class B - Test 2 Based on 2024 OK CDL Handbook 18. Where do placards have to be placed? A On the driver’s side of the vehicle B On the front only C On the front, back and both sides of a vehicle Next More 18/29 Progress 0 Errors Restart Next Next Class B - Test 2 Back to Test List Class B - Test Class B - Test 3 Challenge Library 12 More OK CDL Practice Tests 11 Class B - Test 3 12 Class B - Test 4 13 Class B - Test 5 14 Class B - Test 6 15 Class B - Test 7 16 HazMat - Test 17 HazMat - Test 2 18 HazMat - Test 3 19 HazMat - Test 4 20 HazMat - Test 5