How is the Anti-skid test performed?

• A. Only self-test.
• B. By cycling the Anti-Skid switch during origin check.
• C. The Anti-Skid Control Unit is equipped with a self test feature; it is also tested during the originating check by cycling the Anti-Skid switch.
• D. There is no test routine.

Answer: (C)

Anti-skid testing relies on two things working together. The Anti-skid Control Unit includes a built-in self-test that runs when power is applied, checking the wheel speed sensors, valves, and the control logic so you know the system is healthy. In addition, during the origin (preflight) check you cycle the Anti-skid switch to force a quick test of the system and verify that the indicators behave correctly and the system responds as expected. This combination ensures both the internal functionality and the external indications are confirmed. The option that only mentions a self-test or that there’s no test routine doesn’t capture the full, real-world procedure.