Home › CDL Practice Tests › Combination Vehicles Questions › Question 63
For triple trailers, what rearward amplification figure is commonly cited?
- A.About 1.2
- B.About 2.0, the same as a single
- C.About 0.8, less than a single
- D.About 3.5, the highest of the common combinations
Correct answer
D. About 3.5, the highest of the common combinations
Why
With three trailers, each unit amplifies the motion of the one ahead, reaching roughly 3.5 at the last trailer in the commonly cited figures. That is why triples demand the gentlest steering of all.
Manual topic: Combination Vehicles - Rollover and Rearward Amplification · From the Combination Vehicles practice bank (CV-063).