Question An improperly placarded vehicle: Answers Can never be moved. Can only be moved in an emergency. Can be driven short distances. Can be driven if it does not contain radioactive materials. Explanation A vehicle carrying hazardous materials must be appropriately placarded to be driven. An improperly placarded vehicle may only be driven if necessary to protect life or property in an emergency. Take a FREE Practice Test Now This questions appears in the following tests: Connecticut HazMat , Delaware HazMat , Indiana HazMat , West Virginia HazMat , Wisconsin HazMat , North Carolina Tank ,