Day 3 Progress Check Flashcards
How are most turbine ignition systems cooled?
Air cooling
What condition(s) may cause the engine to flame out in-flight, requiring to relight?
Foreign object ingestion
Severe precipitation
Flight above certain altitudes
Correct: All of the above
What should be examined for flashover and carbon tracking?
Grommet seal
What is the difference between turbine engine ignition systems and reciprocating engine ignition systems?
Turbine systems may use continuous ignition
What is the purpose of dual igniters in turbine ignition systems?
Improved safety through redundancy
What is the potential danger associated with the high energy level and voltage of turbine ignition systems?
Injury or death if carelessly handled during maintenance
What is the significance of a larger electrode gap in the igniter plug compared to a spark plug?
It allows for easier spark arcing
What caution should be emphasized when checking the igniter?
Personnel safety due to high energy and voltage
What type of electrical energy is used by the igniter plug to create the spark?
High-voltage DC
In which flight condition is continuous ignition typically used in turbine engines?
Takeoff, landing, and emergencies
What is the primary purpose of continuous ignition in turbine engines during critical flight modes?
Preventing engine flameout
What is the purpose of the annular-gap igniter plug in a turbine engine?
Projecting into the combustion chamber for a more effective spark
How is the igniter checked by maintenance personnel listening for a clicking noise?
During engine start
What differentiates the annular-gap igniter plug from the constrained-gap plug?
Projecting into the combustion chamber
What is the role of the high-energy ignition unit?
Transforming and stepping up power for igniters
