Why is it important to repair or replace defective components found during an inspection?

Answer: B — To prevent possible accidents and ensure safety

Repairing or replacing defective components found during an inspection is crucial for preventing possible accidents and ensuring safety. The air brake system is vital for the safe operation of trains, directly influencing stopping distances and the ability to control the train effectively. If any component of the air brake system is compromised, it could lead to a malfunction during operation, significantly raising the risk of accidents that could endanger both crew and passengers. Ensuring that all parts are functioning correctly is fundamental to maintaining a safe transit environment, which is the primary responsibility of rail operators. Given the potential consequences of failure, addressing defective components promptly is essential to uphold safety standards in railway transportation.