Home › CDL Practice Tests › Combination Vehicles Questions › Question 135
Your trailer starts to sway gently from side to side at highway speed in a crosswind. What is the generally taught response?
- A.Brake hard with the service brake to slow down as fast as possible
- B.Accelerate quickly so the trailer is pulled straight by speed
- C.Ease off the accelerator and avoid hard service-brake braking; if needed, apply the trailer hand valve gently and carefully to help stretch the combination straight
- D.Steer left and right in rhythm with the sway to cancel it
Correct answer
C. Ease off the accelerator and avoid hard service-brake braking; if needed, apply the trailer hand valve gently and carefully to help stretch the combination straight
Why
Hard service braking and sudden steering tend to feed a sway rather than calm it. Slowing gently and, when taught for the situation, a careful light application of the trailer brakes can pull the combination back into line, but the hand valve must never be yanked on.
Manual topic: Combination Vehicles - Skids and Jackknifing · From the Combination Vehicles practice bank (CV-135).