PSA Airlines Canadair Regional Jet Systems (PSA-CRJ) Practice Exam

The statement that some buttons maintain functionality regardless of failure is true because the EICAS (Engine Indication and Crew Alerting System) Control Panel is designed to ensure that critical alerts and functions are still accessible to the crew even in the event of a system failure. This redundancy is vital for ensuring safety and operational awareness during abnormal conditions. The panel typically prioritizes functionality for alerts that are essential for flight safety, allowing pilots to respond to critical situations even if other non-essential features may be compromised. This design supports effective decision-making in emergencies by enabling continued access to necessary warnings and actions. In contrast, the other statements do not align with the design philosophy of the EICAS. Having all buttons become inactive would severely limit the crew's ability to respond to failures, which is not desirable in aviation safety practices. The notion that only visual warnings can be utilized overlooks the importance of audible alerts in facilitating immediate awareness of issues. Lastly, while certain systems may become limited, stating that it can still send voice alerts inaccurately suggests that all functions, including voice alerts, remain operational, which isn't guaranteed in all scenarios of failure.