If the low pressure engine driven pump fails, what takes over?

When the low pressure engine driven pump fails, the system is designed for safety and redundancy. The electric boost pumps automatically take over to ensure that fuel is still delivered to the engines. This design is crucial for maintaining proper engine operation and preventing potential failures that could occur due to fuel starvation.

The electric boost pumps help maintain fuel pressure and allow for continued operation of the aircraft under various flight conditions. This feature is particularly important as it enhances the overall reliability of the fuel system and provides a backup in case of a primary system failure.

Other options, such as the main fuel tank, fuel transfer system, and auxiliary fuel tank, do not directly provide the required pressure and flow of fuel necessary for the engine's operational needs in the event of a pump failure. Instead, they play different roles in the aircraft's fuel management system.