How often should brake pedal travel checks be performed?

Answer: B — As part of routine maintenance regularly

The frequency of brake pedal travel checks is best described as being part of routine maintenance regularly. This approach ensures that any potential issues with the braking system can be identified and addressed before they become significant safety concerns. Regular checks help maintain the overall functionality of the brakes, promoting safe operation of the vehicle. Conducting these checks routinely allows drivers to stay on top of the wear and tear that may occur due to normal usage. This proactive maintenance strategy minimizes the risk of brake failure and enhances overall road safety, making it essential for commercial drivers who rely heavily on their braking systems during operation. The other options imply less frequent checks, which could result in undetected issues leading to dangerous situations. Only checking when problems occur or specifying a lengthy interval dilutes the importance of regular inspections. Maintaining a consistent practice of routine maintenance is critical for ensuring that all components of the air brake system function correctly and reliably.