What is the function of the vehicle’s auxiliary (parking/hand) brake?

1. Correct answer: To secure the vehicle from moving or going downhill..
2. To assist the driver during a “hill start” only.
3. Its use prevents wear of the service brakes (foot brake)?
4. To enhance the braking force of the vehicle’s brakes.

WhyThe handbrake keeps the vehicle from moving or rolling downhill while parked.