FAA Powerplant Written Practice Test

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Prepare for the FAA Powerplant Written Test. Study with flashcards and multiple choice questions, each featuring hints and explanations. Ace your exam with confidence!

Practice this question and more.

In a FADEC system aircraft, what does the EEC control?

Only the fuel metering unit
Many engine subsystems as well as the fuel metering unit
Just the ignition system
Air inlet dynamics only

The correct answer is: Many engine subsystems as well as the fuel metering unit

In a FADEC (Full Authority Digital Engine Control) system, the Engine Electronic Control (EEC) unit has a comprehensive role that goes beyond just controlling the fuel metering unit. The EEC is designed to manage multiple engine subsystems in addition to fuel flow, which includes tasks such as controlling the ignition system, regulating engine temperature, and overseeing other vital functions like thrust management and engine performance optimization. This integrated approach allows for precise adjustments to be made in real-time based on various parameters, resulting in improved engine efficiency, performance, and reliability. Since the EEC is responsible for the overall management of engine operations—including monitoring sensor data and making necessary adjustments across different systems—it plays a crucial role in the safe and efficient operation of the aircraft's powerplant. This holistic control is essential for adapting to changing flight conditions and ensuring optimal performance.