When should brakes be tested to ensure normal functioning?

Testing the brakes immediately after the vehicle is underway is essential to ensure that they are functioning correctly before engaging in road travel. This action allows the driver to confirm that the braking system is responsive and can effectively slow down or stop the vehicle if necessary. Early verification is particularly important, as relying on assumptions about brake functionality can lead to dangerous situations if there are any underlying issues that were not identified before the vehicle began moving. Proper brake testing helps enhance safety and ensures that the driver has full control over the vehicle from the start of their journey.

While other options might suggest various points at which a brake test could be performed, they do not prioritize the immediate assessment of brakes at the critical moment of vehicle operation.