What should be verified during a Class 1A air brake test after making a reduction?

During a Class 1A air brake test, it is essential to verify that the brakes apply and remain applied on each car following a reduction in air pressure. This step ensures that the braking system is functioning correctly and that all the brakes on the train are responsive. By confirming that the brakes hold, it provides assurance that the train can come to a safe stop if necessary, which is critical for the safe operation of rail transport. A successful application of the brakes across the entire train indicates that the air brake system is effectively pressurizing and holding, thereby maintaining the integrity of the braking system under operational conditions.

While visual inspection of the cars, maintaining speed under 10 MPH, and confirming communications with the dispatcher are significant aspects of train operations and safety protocols, they are not the primary focus of the Class 1A air brake test. The main objective of this test is to ensure the proper functionality of the brake system, which directly impacts operational safety.