Day 4 Progress Check Flashcards
What condition in a turbine engine does a rich blowout specifically indicate?
Fuel cooling below combustion temperature
What primary purpose does a positive displacement pump serve in a turbine fuel system?
To provide stable fuel delivery despite varying conditions
What unique function does a dump valve serve in a fuel system?
It releases fuel that accumulates after shutdown to avoid fire risk
In what situation does a lean flameout occur?
When fuel quantity is reduced below air quantity
Why is fuel temperature regulation crucial in turbine engines?
To avoid ice formation in fuel filters
Which issue can result from a fuel mixture too rich during rapid engine acceleration?
Rich blowout
What is the purpose of the totalizer in a fuel quantity indicator system?
To subtract fuel flow from the initial total to show remaining fuel
Why are micron filters vital in turbine engine fuel systems?
They filter out microscopic particles to protect fuel pumps and controls
What operational challenge does a fuel heater address within turbine engines?
Ice accumulation in fuel filters
What benefit do air blast fuel nozzles provide in turbine engines?
Improved atomization and reduced local rich spots
How does the nonpositive displacement pump differ from the positive displacement pump?
It doesnâ t require a pressure relief valve
Which action is essential for maintaining fuel spray nozzles to ensure optimal performance?
Regular inspection for carbon buildup
Which feature of a duplex fuel nozzle improves its performance over a simplex nozzle?
Provides enhanced atomization at lower pressures
How do fuel flow dividers function in relation to duplex fuel nozzles?
They separate fuel into primary and secondary flows based on engine demand
Why might a pilot monitor the pressure-drop warning in a fuel filter system?
To receive alerts of ice blockages in the filter
