Wet brakes can cause which unstable trailer behavior?

Wet brakes can cause which unstable trailer behavior?

• A. Trailer will straighten
• B. The trailer could jack knife
• C. Truck will stall
• D. Brakes will overheat

Answer: (B)

Wet brakes reduce stopping friction and can cause the trailer brakes to lock up on a slippery surface. When the trailer brakes lock, the trailer can pivot around the hitch and swing inward, creating a sharp angle between the truck and trailer. That uncontrolled fold is what we call a jackknife. So the unstable behavior you’d worry about with wet brakes is the trailer jackknifing. The trailer isn’t likely to straighten on its own, and stalling the truck or overheating the brakes aren’t the immediate issues tied to this situation.

Wet brakes reduce stopping friction and can cause the trailer brakes to lock up on a slippery surface. When the trailer brakes lock, the trailer can pivot around the hitch and swing inward, creating a sharp angle between the truck and trailer. That uncontrolled fold is what we call a jackknife. So the unstable behavior you’d worry about with wet brakes is the trailer jackknifing. The trailer isn’t likely to straighten on its own, and stalling the truck or overheating the brakes aren’t the immediate issues tied to this situation.