Which technique can help prevent rolling back when starting on a hill?

Using the parking brake is an effective technique to prevent rolling back when starting on a hill. When a driver applies the parking brake while shifting into gear, it secures the vehicle and prevents it from rolling backward due to gravity. This method allows the driver to carefully transition from the brake pedal to the accelerator without the risk of the vehicle rolling back, especially on steep inclines.

When the driver is ready to move forward, they can release the parking brake while simultaneously applying throttle, achieving a smooth and controlled start on the hill. This technique promotes safety and helps maintain control, especially important in a commercial driving context where vehicle weight and stability are critical.

Other techniques may not provide the same level of control or might even increase the risk of rolling back. For example, fully engaging the brake only holds the vehicle in place and does not facilitate a smooth transition to moving forward. Riding the clutch can lead to premature wear and could compromise the driver's ability to control the vehicle effectively. Starting in neutral offers no assistance in preventing rollback, as it does not engage any gear to move the vehicle forward.