What does the fuel flow divider and dump valve do?

• A. Sends fuel to primary and secondary nozzles and directs purge air from the purge air accumulator into the fuel manifold during shutdown for a cleaner shutdown.
• B. Dumps excess fuel overboard.
• C. Purges fuel into the engine exhaust.
• D. Splits fuel evenly between tanks.

Answer: (A)

The main idea here is how the engine fuel control distributes fuel and clears the system at shutdown. The fuel flow divider splits the fuel to the two nozzles—the primary and the secondary—to ensure both receive the right amount for stable, balanced combustion across the operating range. At shutdown, purge air from the purge air accumulator is directed into the fuel manifold to purge any remaining fuel from the lines, giving a cleaner shutdown with less residual fuel in the lines.

It isn’t about dumping fuel overboard, and it doesn’t purge fuel into the exhaust. It also isn’t about splitting fuel between aircraft tanks; that’s a separate fuel management function.