Question Livestock: Answers Should never be transported on a trailer. Must be inspected by a law enforcement officer. Can cause unsafe handling when being transported on a trailer due to their movement. Can only be transported by a person registered as a farmer. Explanation Livestock being transported as cargo can move around and shift their weight in transit, which can result in unsafe handling. This questions appears in the following tests: Illinois Class A Knowledge Test Nevada Class B Knowledge Test Nevada Class B Knowledge Test New Hampshire Class B Knowledge Test Oregon Class B Knowledge Test