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In an emergency stop without ABS, what should you do if the vehicle begins to skid because the wheels have locked?
- A.Hold the locked brakes firmly and turn the wheel hard the opposite way
- B.Ease off or release the brakes enough to get the wheels rolling again, steer in the direction you want to go, and reapply without locking if more braking is needed
- C.Apply the parking brake immediately at speed in all cases
- D.Accelerate to straighten the vehicle regardless of traffic
Correct answer
B. Ease off or release the brakes enough to get the wheels rolling again, steer in the direction you want to go, and reapply without locking if more braking is needed
Why
Rolling wheels restore both grip and steering, which is the basis of both controlled and stab braking. Keeping the wheels locked surrenders direction control and makes jackknife or trailer swing more likely.
Manual topic: Air Brakes - Stab Braking · From the Air Brakes practice bank (AB-250).