Home › CDL Practice Tests › Combination Vehicles Questions › Question 66
What is the best way to prevent a crack-the-whip rollover?
- A.Make lane changes as quickly as possible
- B.Counter-steer sharply when the trailer swings
- C.Steer smoothly and gently, avoid sudden lane changes, and slow down well before curves
- D.Drive faster through curves to reduce lean time
Correct answer
C. Steer smoothly and gently, avoid sudden lane changes, and slow down well before curves
Why
Gentle inputs keep amplification small because there is little whip to amplify. Sudden steering is exactly the input that multiplies down the length of the combination.
Manual topic: Combination Vehicles - Rollover and Rearward Amplification · From the Combination Vehicles practice bank (CV-066).