Loading cargo improperly: Question Loading cargo improperly: Answers Improves fuel efficiency. Can be dangerous. Usually makes unloading easier. Explanation Proper loading and securement of cargo is essential for safety. Improperly loaded cargo could damage a vehicle, as well as cause injury or death by falling off in a collision or sudden stop. This questions appears in the following tests: Arizona Class B Knowledge Test Kentucky Class B Knowledge Test Louisiana Passenger Missouri Class A Knowledge Test