What is the design purpose of the fuel system for fuel feed sequencing?

The design purpose of the fuel system for fuel feed sequencing is automatic. This means that the fuel system is engineered to manage the flow of fuel to the engines without the need for manual intervention from the flight crew. The automatic sequencing is crucial for maintaining optimal fuel balance and performance, as it allows the system to make real-time adjustments and selections based on the operational needs, such as fuel levels and engine requirements.

The advantages of an automatic system include reducing pilot workload and enhancing safety by minimizing human error. It ensures that engines receive the necessary fuel in a timely manner while also managing the distribution of fuel from different tanks effectively. This automatic process is integral to the overall efficiency and reliability of the aircraft’s fuel management, allowing for smooth operation throughout various phases of flight.

In contrast, options such as manual, recirculated, or redundant systems do not focus on the automatic nature of fuel feed sequencing, which is the key aspect of this function in modern aircraft like the A320.