As shown in the illustration of a gas turbine fuel oil system, when the engine fuel oil valves are de-energized, the remaining fuel left in the system is recirculated back to the _________. Illustration GT-0021

Correct Answer: Option D — fuel pump inlet

When the fuel shutoff valves de-energize, the system design ensures that trapped fuel is not dead-headed. The fuel is routed back to the fuel pump inlet, maintaining a closed-loop circulation path that prevents pressure spikes and ensures the system remains primed for the next engine start sequence.