What is the maximum speed for the rolling release inspection during an Initial Terminal Air Brake Test (Class I)?

What is the maximum speed for the rolling release inspection during an Initial Terminal Air Brake Test (Class I)?

• A. Not exceeding 20 mph
• B. Not exceeding 5 mph
• C. Not exceeding 10 mph
• D. No speed restriction

Answer: (C)

The rolling release inspection is about confirming that the air brakes release smoothly as the train starts to move after a stop. Doing this at a low, controlled speed lets you observe the brake indicators across the train and notice any sticking brakes, leaks, or uneven release without rushing or losing control. Not exceeding 10 mph keeps the movement slow enough to safely monitor brake release and react quickly if something isn’t releasing properly, while still allowing a real rolling check. Going faster could mask a problem, make it harder to spot a stuck brake, and increase the risk of handling issues or damage.

The rolling release inspection is about confirming that the air brakes release smoothly as the train starts to move after a stop. Doing this at a low, controlled speed lets you observe the brake indicators across the train and notice any sticking brakes, leaks, or uneven release without rushing or losing control.

Not exceeding 10 mph keeps the movement slow enough to safely monitor brake release and react quickly if something isn’t releasing properly, while still allowing a real rolling check. Going faster could mask a problem, make it harder to spot a stuck brake, and increase the risk of handling issues or damage.