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 A — fuel pump inlet

When fuel oil valves de-energize, the system design facilitates the recirculation of trapped fuel back to the fuel pump inlet. This prevents dead-heading the high-pressure pump and ensures that fuel remains within the pressurized loop, maintaining system readiness and preventing potential cavitation or pressure surges during shutdown sequences.