What is rearward amplification?
a.Increased braking power at the rear axle
b.The tendency for the rear trailer in a multi-trailer combination to swing out more during sudden steering movements
c.Louder noise coming from the rear of the vehicle
d.Increased visibility from the rear mirrors
Explanation
Rearward amplification is the tendency for the last trailer in a multi-trailer rig to swing out more during sudden steering changes. In doubles, the rear trailer can amplify steering movements up to two times, and in triples, it can be even more.