Technician A says that drive axle wheel lock under braking is a major cause of trailer jackknife.Technician B says that even a basic 2S/2M tractor ABS can help reduce jackknife incidents.
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Drive axle wheel lock under braking can indeed lead to trailer jackknife, as it causes the trailer to lose traction and potentially swing out. A 2S/2M (2 sensors/2 modulators) ABS system on a tractor can help prevent this by modulating the brake pressure to avoid wheel lockup, thereby reducing the risk of jackknife incidents.

Technician a Says That Drive Axle Wheel Lock Under Braking