Which air brake test should be performed when rearranging locomotives in a consist?

The Locomotive Air Brake Test is the appropriate test to perform when rearranging locomotives in a consist because it ensures that the air brake system on each locomotive is functioning properly. This test checks the integrity and operational capability of the air brakes before the train or consist departs. Conducting this test helps confirm that there are no leaks in the brake system, that the brakes can engage and release as needed, and that the system pressures are appropriate.

Performing this test is crucial to maintaining safety and operational readiness, especially when locomotives are added or rearranged within a train, as changes can affect the overall braking performance of the entire consist. Ensuring that each unit's braking system is thoroughly tested helps to prevent potential issues during transit, which could lead to increased risks during operations.

The other tests mentioned, such as the Locomotive Restraint Test, Emergency Braking Test, and Dynamic Braking Test, serve different purposes and do not specifically focus on confirming the air brake functionality in the context of rearranging locomotives.