After each engine is started, what happens to the center tank fuel pumps?

After each engine is started, the center tank fuel pumps will run for two minutes to verify their operation. This functionality is a part of the aircraft's fuel system checks, ensuring that the pumps are functioning correctly and providing fuel from the center tank as needed.

The design of this system allows for an initial verification period right after engine start to detect any potential issues with the pumps before they are engaged for normal operation. This helps ensure the safety and reliability of fuel delivery as the aircraft prepares for the flight.

Other options present different scenarios that do not accurately reflect the system's operational procedures—such as stating that the center tank pumps become inoperative, which does not occur unless specifically commanded; or suggesting that the pumps run until certain actions related to speedbrakes or the TO CONFIG button are implemented, which relate to other aircraft systems and configurations rather than the direct operation of the fuel pumps after engine start.