Practice question

What is the tested combination-vehicle principle for trailer skid recovery?

To stop a trailer skid, release the brakes so trailer wheels can roll and regain traction.
Apply more trailer-only braking to a trailer skid
Keep the wheels locked until the vehicle stops
Correct a jackknife by pulling the fifth-wheel release

Answer: A — To stop a trailer skid, release the brakes so trailer wheels can roll and regain traction.

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