Home › CDL Practice Tests › Combination Vehicles Questions › Question 134
What is the safest braking technique when you must stop quickly on a wet road in a combination vehicle?
- A.Brake firmly but smoothly in a straight line, staying just short of locking the wheels (or let ABS do that work if equipped)
- B.Pump the brake pedal as fast as possible whether or not the vehicle has ABS
- C.Use only the trailer hand valve so the tractor keeps steering
- D.Alternate hard braking with full release every second
Correct answer
A. Brake firmly but smoothly in a straight line, staying just short of locking the wheels (or let ABS do that work if equipped)
Why
Smooth, controlled pressure in a straight line keeps every axle rolling and gripping. Hard, jerky applications on wet pavement are what lock wheels and start the trailer swinging.
Manual topic: Combination Vehicles - Skids and Jackknifing · From the Combination Vehicles practice bank (CV-134).