What systems are monitored by the ERJ-145's Electronic Centralized Aircraft Monitor (ECAM)?

The Electronic Centralized Aircraft Monitor (ECAM) of the ERJ-145 is designed to provide critical information about the aircraft's performance and operational status. It primarily monitors the aircraft's hydraulics, fuel management, environmental control systems, and electrical systems. This allows flight crews to have a centralized view of the aircraft's health and any potential issues that may arise during flight. The ECAM enhances situational awareness and helps with decision-making in managing these key systems effectively.

In contrast, while navigation and communication systems are essential for flight operations, they are typically monitored by other systems rather than the ECAM. Similarly, flight control surfaces and engine performance, though crucial for flying, are generally not the focus of the ECAM. Lastly, cabin pressure and passenger comfort levels, while important for overall passenger experience, do not fall under the immediate monitoring capabilities of the ECAM. Therefore, the correct answer highlights the ECAM's role in overseeing the critical operational systems that directly impact the safety and performance of the aircraft.