New Jersey Air Brakes Practice Test

When is it necessary to perform an air brake system check?

1. Only after a failure occurs

2. Before every trip

3. Once a week

4. Only when the warning lights are activated

The correct answer is: Before every trip

Performing an air brake system check before every trip is crucial for ensuring the safety and functionality of the vehicle. This pre-trip inspection allows the driver to identify and address potential issues with the air brake system, such as leaks, insufficient air pressure, or malfunctioning components, before they lead to a breakdown or accident on the road. By conducting this check routinely, drivers can maintain a higher level of road safety, as air brakes are a critical component in the overall braking system of commercial vehicles. Regular inspections help ensure that the brakes are functioning properly, which is vital for the safe operation of large vehicles that require effective stopping power, particularly under heavy loads or adverse conditions. In contrast, waiting until a failure occurs or only checking on a weekly basis denies drivers the opportunity to catch problems early. Relying on warning lights alone may not provide a complete picture of the system's health, as some issues may not trigger a warning light until problems develop further. Hence, being proactive with air brake checks before each trip is the best practice.