Question On a curve, the posted speed limit: Answers Is safe to be driven in any vehicle. Can still permit a vehicle to tip over. Is understood to be the minimum legal speed limit. Explanation The posted speed limit on a curve may be safe to be taken by cars, but can still be too fast to be taken by larger vehicles, such as trucks. An operator driving their truck at the posted limit on a curve could cause their vehicle to tip over. This questions appears in the following tests: Arizona Passenger Idaho Tank Maryland Double Missouri Double New Hampshire Class B Knowledge Test New Mexico Double Utah Class B Knowledge Test Virginia Passenger