Which valve indicators are associated with the GTGS Fuel System?

Which valve indicators are associated with the GTGS Fuel System?

• A. Open Fuel Pump Parallel Valve, Close Fuel Shutoff Valve, Open Fuel Shutoff Valve
• B. Open Fuel Pump Valve, Open Fuel Shutoff Valve, Close Fuel Pump Valve
• C. Open Fuel Pump Valve, Close Fuel Pump Valve, Open Fuel Pump Parallel Valve
• D. Open Fuel Pump Parallel Valve, Open Fuel Shutoff Valve, Close Fuel Pump Parallel Valve

Answer: (D)

In the GTGS Fuel System, valve indicators show the actual positions of the fuel-path valves so you know how fuel can flow. Two valves matter here: the fuel pump parallel valve and the fuel shutoff valve. You need to confirm that fuel can reach the engine when the system is supposed to be supplying fuel, and you also need to know when a valve is being isolated. Open Fuel Pump Parallel Valve indicates that the parallel valve is in the position allowing fuel from the pump(s) to feed the system. Open Fuel Shutoff Valve shows the shutoff path is allowed so fuel can flow to the engine. Close Fuel Pump Parallel Valve signals that the parallel valve is shut, isolating that path when required (such as during shutdown or pump isolation). Together these indicators give a complete, practical readout of the GTGS fuel path status: you can verify that fuel is allowed to flow and that the correct valve is either open or closed for the current operation. That combination is why these indicators are the best answer: they reflect the open status of the pump parallel path, the open status of the shutoff path, and the close status of the parallel path, providing a full picture of the fuel flow configuration.

In the GTGS Fuel System, valve indicators show the actual positions of the fuel-path valves so you know how fuel can flow. Two valves matter here: the fuel pump parallel valve and the fuel shutoff valve. You need to confirm that fuel can reach the engine when the system is supposed to be supplying fuel, and you also need to know when a valve is being isolated.

Open Fuel Pump Parallel Valve indicates that the parallel valve is in the position allowing fuel from the pump(s) to feed the system. Open Fuel Shutoff Valve shows the shutoff path is allowed so fuel can flow to the engine. Close Fuel Pump Parallel Valve signals that the parallel valve is shut, isolating that path when required (such as during shutdown or pump isolation). Together these indicators give a complete, practical readout of the GTGS fuel path status: you can verify that fuel is allowed to flow and that the correct valve is either open or closed for the current operation.

That combination is why these indicators are the best answer: they reflect the open status of the pump parallel path, the open status of the shutoff path, and the close status of the parallel path, providing a full picture of the fuel flow configuration.