Air Brake Practice Test

If you receive a low-pressure warning, what should be your immediate action?

1. Continue driving cautiously

2. Halt and park safely as quickly as possible

3. Adjust brake settings

4. Inspect the air compressor

The correct answer is: Halt and park safely as quickly as possible

When you receive a low-pressure warning while operating a vehicle with air brakes, the immediate and appropriate action is to halt and park safely as quickly as possible. This warning indicates that the air pressure in the brake system has fallen below a safe level, which can jeopardize the effectiveness of the brakes. Continuing to drive under these conditions could result in brake failure, creating a significant safety hazard for both the driver and others on the road. Parking safely allows the driver to address the issue without endangering themselves or others. It provides an opportunity to investigate the cause of the low pressure, whether it's due to a leak, a malfunction, or another issue within the air brake system. Taking prompt action in response to a low-pressure warning is crucial for maintaining safety and ensuring the vehicle can be brought to a standstill effectively.