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What is rearward amplification?
- A.The increase in sideways movement and rollover force from the front of a combination to the last trailer, often called the crack-the-whip effect
- B.The sound a trailer makes in a tunnel
- C.The extra braking power of the last axle
- D.The widening of a turn at the front wheels
Correct answer
A. The increase in sideways movement and rollover force from the front of a combination to the last trailer, often called the crack-the-whip effect
Why
Each unit in a combination whips a little more than the one ahead of it in a quick steering move. The last trailer feels the largest sideways force, which is why it is the most likely to roll.
Manual topic: Combination Vehicles - Rollover and Rearward Amplification · From the Combination Vehicles practice bank (CV-061).