Practice question

Why are quick lane changes especially risky with doubles/triples?

  1. Rearward amplification can make the rear trailer swing more than the tractor
  2. The tractor cannot signal while towing two trailers
  3. The dolly disconnects automatically above 45 mph
  4. The front trailer brakes turn off

Answer: A — Rearward amplification can make the rear trailer swing more than the tractor

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