When executing an emergency stop in a vehicle without an anti-lock braking system (ABS), a driver chooses the stab braking procedure. Which action correctly describes how this technique is performed?
- ABrake firmly until vehicle speed drops 5 mph below the safe speed, release the brake pedal completely, and repeat the cycle.
- BPress the brake pedal fully and hold the wheels in a continuous lockup until the vehicle stops completely.
- Apply the brakes all the way until the wheels lock, release the brakes immediately, and reapply them once the wheels start rolling.Answer
- DEngage the engine retarder at its highest setting while lightly pumping the service brake pedal.
Answer
Apply the brakes all the way until the wheels lock, release the brakes immediately, and reapply them once the wheels start rolling.
The correct answer accurately describes stab braking: applying full brake pressure until the wheels lock, releasing the pedal immediately so the wheels start rolling again to maintain vehicle control, and reapplying the brakes fully as soon as rolling resumes.
Step-by-Step Solution
Key Concept
Stab Braking Procedure
Estimated Time:45s