What does blocking cargo do? Do you currently have car insurance? Insurance is mandatory to drive in Ohio 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. This questions appears in the following tests: Arizona Class B Knowledge Test Idaho Class B Knowledge Test Idaho Bus Kentucky Class A Knowledge Test Minnesota Class A Knowledge Test Mississippi Tank