After releasing the brakes during stab braking because the wheels locked up, approximately how long can it take for the wheels to start rolling again, and why does reapplying too soon matter?

Air Brakes • Free CDL Practice Question
Regulation

AAMVA CDL Manual, Section 5, subsection 5.4.3, p. 5-8; 49 CFR 383.111(b)(7)(iii) (Emergency stops)

Why This Matters

This one-second window is the difference between stab braking working as intended and a driver re-locking the wheels before the truck has a chance to track straight, which can lead to jackknifing or losing the lane. Understanding this timing is what separates correctly executed stab braking from a panic stomp on the pedal.