What do the Digital Engine Control Units (DECUs) monitor?

What do the Digital Engine Control Units (DECUs) monitor?

• A. Engine status
• B. Hydraulic pressure
• C. Aircraft attitude
• D. Electrical load

Answer: (A)

Digital Engine Control Units focus on the engine’s health and performance to run and protect the engine. They continuously watch engine status—things like RPM, temperatures (such as turbine/EGT), pressures, fuel flow, and oil parameters—and use that data to regulate fuel delivery and timing, and to trigger protective limits if something starts to go off nominal. This is why engine status is the right choice: DECUs are centered on the engine itself, not on hydraulic systems, aircraft attitude, or electrical load. Hydraulic pressure, attitude, and electrical load are handled by other systems and sensors.

Digital Engine Control Units focus on the engine’s health and performance to run and protect the engine. They continuously watch engine status—things like RPM, temperatures (such as turbine/EGT), pressures, fuel flow, and oil parameters—and use that data to regulate fuel delivery and timing, and to trigger protective limits if something starts to go off nominal. This is why engine status is the right choice: DECUs are centered on the engine itself, not on hydraulic systems, aircraft attitude, or electrical load. Hydraulic pressure, attitude, and electrical load are handled by other systems and sensors.