Practice question

When driving a commercial vehicle, the driver should be aware that the vehicle's total stopping distance at highway speed is significantly greater than a passenger car. At 55 mph, the total stopping distance for a fully loaded tractor-trailer on dry pavement is approximately:

  1. About 100 feet
  2. About 200 feet
  3. About 419 feet (roughly the length of a football field)
  4. About 100 feet if brakes are good

Answer: C — About 419 feet (roughly the length of a football field)

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Practice more: California CDL General Knowledge Test Practice Questions - California Commercial Driver License General Knowledge Test Exam →