Practice Quiz

Commercial Driver's License

Category - Standard Driving

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Which of the following statements is TRUE concerning rough acceleration in a combination vehicle?
  1. Rough acceleration does not cause damage to the any part of the vehicle.
  2. Rough acceleration can cause damage to the coupling.
  3. Rough acceleration cannot be prevented.
  4. Rough acceleration only happens to new drivers.
Explanation
Answer: B - Rough acceleration can cause damage to the coupling unit. To prevent damaging the vehicle or the coupling unit, drivers should always attempt to speed up gradually and smoothly. It is the jerking motion of a rough acceleration that causes the majority of damage seen in these cases.
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