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How well do you manage speed and space?

One of the most important aspects of operating a CMV is knowing how to properly manage your vehicle’s speed and space under various conditions. Test your knowledge of vehicle speed and space management. Click below to see answers.

  1. When managing vehicle speed, you should operate at an appropriate speed for:
    1. Road conditions
    2. Visibility
    3. Traffic speed/flow
    4. All of the above
  2. Posted heights on bridges and overpasses are always correct.
    1. True
    2. False
  3. When managing space ahead of your vehicle, you should allow for greater stopping distance when road conditions are poor.
    1. True
    2. False
  4. When managing space to the sides of your vehicle, you should drive as close to the right side of the road as possible.
    1. True
    2. False
  5. When managing space ahead of your vehicle, you should allow at least ________ for each 10 feet of vehicle length at speeds below 40 mph.
    1. One second
    2. Three seconds
    3. Six seconds
    4. All of the above

Test Yourself: How well do you manage speed and space?: Answers


  1. D
  2. B
  3. A
  4. B
  5. A