2026 Virginia Combination CDL Practice Test 2

What is a tractor jackknife?

When you lock up the drive tires on the tractor and the tractor spins out sideways as the trailer continues to push forward When you lock up the drive tires on the trailer and the trailer spins out sideways as the tractor continues to push forward Neither of the above

Correct Answer:

When you lock up the drive tires on the tractor and the tractor spins out sideways as the trailer continues to push forward

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