Practice question

What is the purpose of chocking the wheels of a semi-trailer when parked at a loading dock?

To prevent the trailer from rolling away or creeping forward during forklift loading operations (trailer creep)
To prevent the trailer tires from losing air pressure
To test the trailer leaf spring flexibility
To lock the trailer kingpin automatically

Answer: A — To prevent the trailer from rolling away or creeping forward during forklift loading operations (trailer creep)

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