Podcast
Questions and Answers
During a normal engine start cycle, at what approximate rotational speed does the engine reach self-sustaining operation?
During a normal engine start cycle, at what approximate rotational speed does the engine reach self-sustaining operation?
- 30% of maximum RPM (correct)
- 10% of maximum RPM
- 20% of maximum RPM
- 40% of maximum RPM
What is the purpose of the blowout cycle during an unsuccessful start attempt?
What is the purpose of the blowout cycle during an unsuccessful start attempt?
- To prevent potential damage by allowing unburnt fuel to drain or evaporate (correct)
- To purge the engine of any residual air
- To rapidly cool down the engine components
- To test the starter motor's functionality
What is the typical duty cycle (maximum operating time) of an air turbine starter motor in modern turbofan engines?
What is the typical duty cycle (maximum operating time) of an air turbine starter motor in modern turbofan engines?
- 6-8 minutes
- 3-5 minutes (correct)
- 9-11 minutes
- 1-2 minutes
If the engine fails to start within the starter motor's duty cycle, what action is typically taken?
If the engine fails to start within the starter motor's duty cycle, what action is typically taken?
During engine start, which two key instruments should be closely monitored?
During engine start, which two key instruments should be closely monitored?
What is the initial event that occurs during a normal engine start cycle?
What is the initial event that occurs during a normal engine start cycle?
What event causes the second rise in Exhaust Gas Temperature (EGT) during a normal start cycle?
What event causes the second rise in Exhaust Gas Temperature (EGT) during a normal start cycle?
What is the purpose of the automatic cancellation of the starter motor and igniters during a normal start cycle?
What is the purpose of the automatic cancellation of the starter motor and igniters during a normal start cycle?
Which component is responsible for regulating fuel flow during the engine start cycle?
Which component is responsible for regulating fuel flow during the engine start cycle?
What is the purpose of the starter motor during the engine start cycle?
What is the purpose of the starter motor during the engine start cycle?
Flashcards are hidden until you start studying
