Home › CDL Practice Tests › Combination Vehicles Questions › Question 64
Which trailer in a set of doubles or triples is most likely to roll over in a quick lane change?
- A.The first trailer behind the tractor
- B.Whichever trailer is oldest
- C.The last (rear-most) trailer
- D.All trailers roll at exactly the same moment
Correct answer
C. The last (rear-most) trailer
Why
Rearward amplification grows toward the rear of the combination. The last trailer experiences the greatest sideways swing and is the first to lift wheels in a crack-the-whip event.
Manual topic: Combination Vehicles - Rollover and Rearward Amplification · From the Combination Vehicles practice bank (CV-064).