What is a tractor jackknife?
a) When you lock up the drive tires on the tractor and the tractor spins out sideways as the trailer continues to push forward
b) When you lock up the drive tires on the trailer and the trailer spins out sideway as the tractor continues to push forward
c) Neither of the above
Answer: a) When you lock up the drive tires on the tractor and the tractor spins out sideways as the trailer continues to push forward
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.