Question 90Gas Turbine - 1st Asst/Chief

The correct answer is A) fuel pump inlet. When the engine fuel oil valves are de-energized, the remaining fuel left in the system is recirculated back to the fuel pump inlet. This is done to ensure a continuous flow of fuel through the system and prevent stagnation or pooling of fuel, which could lead to potential issues such as coking or contamination. The other answer choices are incorrect because: B) the high pressure relief valve is not the destination for the recirculated fuel, C) the day tank is not the appropriate location for the recirculated fuel, and D) the fuel purge manifold is not the intended destination for the remaining fuel in the system when the valves are de-energized.