Do you currently have car insurance? Insurance is mandatory to drive in California Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question What does blocking cargo do? Answers Holds the cargo in a large box Prevents cargo from sliding in transit Prevent others from buying the cargo Explanation Blocking and bracing are used to prevent cargo from shifting in transit. Take a FREE Practice Test Now This questions appears in the following tests: Alaska Knowledge Test Class B ,