What does stab braking involve?

Stab braking is a technique often used in emergency situations, particularly in driving large vehicles like trucks. This method involves applying the brakes hard enough to lock up the wheels for a moment but then releasing the brakes when the wheels do lock. The purpose of this technique is to regain control of the vehicle while it's skidding. By locking the wheels for a brief period, the driver can reduce the momentum of the vehicle; however, it is essential to release the brakes once the wheels lock to allow the wheels to start turning again, which helps to regain control and steer the vehicle effectively.

The other options focus on different braking techniques or describe actions that do not align with the principles of stab braking. Gently slowing down or applying brakes gradually does not engage the same principles of the stab braking method, which is designed for rapid deceleration in critical situations. Continuously pressing the brake pedal would not allow for wheel lock control and instead would lead to a loss of steering.