What test could be conducted instead of a Light Engine Running Air Brake Test?

A Standing Locomotive Air Brake Test is appropriate as an alternative to a Light Engine Running Air Brake Test because it evaluates the functionality of the air brake system on the locomotive while it is stationary. This type of test allows for the verification of the brake system’s components, including the compressor, valves, and air reservoirs, under conditions that simulate operational scenarios without the need for the locomotive to be in motion.

Conducting a Standing Locomotive Air Brake Test ensures that all critical functions of the braking system are checked thoroughly, confirming the proper release and application of brakes, and ensuring that the air pressure remains consistent. This provides an effective assessment of the air brake system's readiness for operations while eliminating the risks and complications associated with moving equipment during the test.

In contrast, other testing options like the Emergency Brake Test or a Full System Pressure Test focus on different parameters or specific systems, which may not fully substitute for the specific evaluations performed in a Standing Locomotive Air Brake Test. Similarly, a Visual Inspection Test is limited to a review of systems without performance evaluation, making it insufficient to confirm the operational readiness of the air brakes.