True or False: The auxiliary battery activates automatically upon failure of the primary battery.

The correct response is that the auxiliary battery does not activate automatically upon failure of the primary battery. In typical aircraft systems, the primary battery is designed to supply power for normal operations, while the auxiliary battery serves as a backup power source for essential systems. However, it requires manual activation or specific conditions to engage, rather than automatically switching on in response to a primary battery failure.

This design ensures that the auxiliary battery is used only when needed and prevents it from draining unnecessarily during normal operations. The reliance on manual activation or specific configurations differentiates the auxiliary battery's functioning from a system that would automatically switch over upon the primary battery's failure.