Home › CDL Practice Tests › Combination Vehicles Questions › Question 144
When driving a vehicle with ABS on all units, how should you brake in an emergency stop?
- A.Pump the pedal quickly to help the ABS cycle faster
- B.Apply the brakes firmly and hold them, steering as needed, without pumping the pedal
- C.Brake only with the trailer hand valve
- D.Release the brakes completely whenever you feel a vibration in the pedal
Correct answer
B. Apply the brakes firmly and hold them, steering as needed, without pumping the pedal
Why
ABS pumps the brakes far faster and more precisely than a driver can, and pumping the pedal yourself defeats the system. Firm, steady pressure lets ABS keep the wheels rolling while you steer.
Manual topic: Combination Vehicles - Skids and Jackknifing · From the Combination Vehicles practice bank (CV-144).