Day 5 Progress Check Flashcards
What does the Wf/P3 ratio measure?
Fuel flow vs. compressor discharge pressure
What is the consequence of excessive fuel in relation to mass airflow through the engine?
Rich blowout
How does an electronic control fine-tune the metering of fuel in hydromechanical fuel controls?
By using electronic sensors for inputs
Which type of fuel control is prevalent in modern turbine engines due to its accuracy in scheduling fuel?
FADEC
In FADEC systems, what occurs when the fuel control switch is placed to cut off?
Resetting the EEC
None listed
Correct: All listed
Initiating fault data recording
What are the three basic groups into which gas turbine engine fuel controls can be divided?
FADEC, Hydromechanical, Hydromechanical/Electronic
Which condition occurs if the fuel quantity is reduced proportionally below the air quantity in a turbine engine?
Lean flameout
What is the role of the FADEC-type control in a gas turbine engine?
Metering fuel using electronic inputs and outputs
What is the primary function of the fuel system in a gas turbine engine?
Controlling thrust for varying operating conditions
In a hydromechanical/electronic fuel control, when does it function solely as a hydromechanical control?
During electronic control failure
What is the primary role of fuel nozzles in the fuel system?
Atomizing or vaporizing fuel
What is the role of the computing section in a hydromechanical fuel control?
Scheduling fuel flow
How does the FADEC system operate when compared to other fuel controls?
The electronic controller has complete control.
What type of sensors feed engine parameter information back to the EEC?
Thermocouples
Rotary differential transformers
Linear variable differential transformers
Correct: All of the above
What is the function of the filter bypass valve?
Bypassing the filter in case of blockage
