Practice question

What is the single most effective rule for commercial heavy vehicle drivers to prevent rollover crashes on circular highway interchanges and roundabouts?

  1. Significantly reduce speed BEFORE entering the curve or roundabout, stay well below posted curve limits, and maintain a smooth, steady radius without abrupt steering or braking
  2. Accelerate through the roundabout to let centrifugal force stabilize the trailer
  3. Drive on the inner curb with the left wheels lifted off the ground
  4. Disengage the clutch and coast through the roundabout in neutral

Answer: A — Significantly reduce speed BEFORE entering the curve or roundabout, stay well below posted curve limits, and maintain a smooth, steady radius without abrupt steering or braking

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