Practice question

Which answer best matches Maryland CDL Manual Section trailer skids?

  1. Apply more trailer-only braking to a trailer skid
  2. Keep the wheels locked until the vehicle stops
  3. Correct a jackknife by pulling the fifth-wheel release
  4. A trailer jackknife usually starts when trailer wheels lock and slide sideways.

Answer: D — A trailer jackknife usually starts when trailer wheels lock and slide sideways.

The correct answer is shown above. Try the full quiz for additional practice.

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