New Jersey Air Brakes Practice Test

How can you effectively check that your service brakes are functioning properly?

1. Park on a hill and test brakes

2. Move forward slowly and apply brakes firmly after waiting

3. Check air pressure while parked

4. Accelerate and brake multiple times

The correct answer is: Move forward slowly and apply brakes firmly after waiting

To effectively check that your service brakes are functioning properly, moving forward slowly and applying the brakes firmly is a reliable method. This practice allows you to assess how the brakes respond under controlled conditions without risking a loss of control. By moving slowly, you can feel the braking response and determine if the brakes engage smoothly and effectively. This method also helps you evaluate the braking distance, ensuring that the brakes are not just responsive but also adequate for your vehicle's weight and speed. Other methods of testing may not provide an accurate reflection of the brake performance. For instance, parking on a hill can lead to an improper assessment as the incline affects the vehicle's momentum and does not replicate normal driving conditions. Checking air pressure while parked focuses more on the state of the air system rather than the actual braking capability. Lastly, accelerating and braking multiple times can be dangerous and may not yield consistent results, as varying speeds can complicate a straightforward evaluation of brake function.