The center of gravity in a trailer should be: Question The center of gravity in a trailer should be: Answers As high as possible. As low as possible. At the rear of the trailer. Explanation The weight of cargo in a vehicle should be distributed as low as possible. Having a center of gravity that is too high will increase the risk of a rollover. This questions appears in the following tests: Iowa Class A Knowledge Test Louisiana Passenger Maine Class B Knowledge Test Michigan Class A Knowledge Test Mississippi Class B Knowledge Test New Mexico Class B Knowledge Test Ohio Class A Knowledge Test Tennessee Passenger