Question 90Gas Turbine - 1st Asst/Chief70% to pass
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 which of the following? Illustration GT-0021
AI Explanation
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.
Related Questions
#88 The secondary passages on the gas turbine engine fuel nozzles shown in the illustration are designed to open at approximately what pressure? Illustration GT-0005 #89 What is the primary function of the main fuel control on the GE LM2500 gas turbine engine? #91 You are preparing for a borescope inspection of a GE LM2500 gas turbine engine. You are reviewing the correct geometric orientation nomenclature which includes which of the following? #92 When conducting a borescope inspection, you must be aware of all of the following factors EXCEPT which? #93 The six borescope ports located in the compressor rear frame casing of the marine propulsion gas turbine shown, can be used to inspect all EXCEPT which of the following components? Illustration GT-0006