Practice question

How high must the landing gear (trailer dolly legs) be raised before driving a tractor-trailer away?

  1. Raised 5 centimeters off the ground so legs can touch speed humps
  2. Fully raised all the way up, with the crank handle secured firmly in its bracket
  3. Left resting on the ground with weight off
  4. Raised halfway in low gear

Answer: B — Fully raised all the way up, with the crank handle secured firmly in its bracket

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