Question Fully-loaded rigs: Answers Are less likely to roll over than empty rigs. Are more likely to roll over than empty rigs. Are just as likely to roll over as empty rigs. Explanation Fully-loaded rigs are more vulnerable to rolling over than empty rigs because the weight of the cargo gives the vehicles higher centers of gravity. Take a FREE Practice Test Now This questions appears in the following tests: Iowa Double , Tennessee Combination , Wyoming Combination ,