A brake accumulator provides at least _____ full brake applications:

The brake accumulator on the A320 is designed to provide at least 7 full brake applications in the event of hydraulic system pressure loss. This is crucial for safety, as it allows the pilot to stop the aircraft effectively even if the main hydraulic system fails. The design ensures that there is a sufficient reserve of hydraulic fluid stored under pressure that can be utilized for braking purposes, thereby allowing for multiple applications before the accumulator is depleted. This safety feature is integral to the operational reliability of the aircraft's braking system.

While options indicating a higher number of full brake applications might seem reasonable, the specification of 7 applications is established based on the system's design and capacity, ensuring that the aircraft can safely come to a stop under specific failure scenarios.