General Authority of Civil Aviation (GACA) Aeronautical Information Publication (AIP) Practice Exam

What is one of the main functions of the EEC?

1. Control fuel mixture

2. Regulate lift

3. Provide thrust lever inputs to automatically control the engines

4. Monitor cabin pressure

The correct answer is: Provide thrust lever inputs to automatically control the engines

The main function of the Engine Electronic Controller (EEC) is to provide thrust lever inputs to automatically control the engines. The EEC is responsible for managing the engine's performance based on pilot commands, optimizing fuel efficiency, and ensuring that engine parameters remain within safe limits. By automatically adjusting the fuel flow, ignition timing, and other parameters, the EEC helps achieve desired thrust while responding to changes in flight conditions, making it a crucial component for engine operation. Controlling fuel mixture, while related to the engine's functioning, is just one aspect of the broader capabilities of the EEC. The regulation of lift is primarily handled by the aircraft's aerodynamic surfaces, not the EEC. Similarly, monitoring cabin pressure is a task assigned to other systems onboard the aircraft, separate from the EEC's responsibilities.