Because of tanks' high centers of gravity, drivers of tanks should: Question Because of tanks' high centers of gravity, drivers of tanks should: Answers Take curves at the posted speed limit. Reduce their speed on curves. Drive on the shoulder whenever possible. Slam on their brakes. Explanation Due to their high centers of gravity, tanks are especially prone to rollovers. When driving a tank vehicle, you should take curves well below the posted speed limit. This questions appears in the following tests: Arkansas Tank Mississippi HazMat