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

The bleed air valves displayed on the ECS and A/ICE synoptic pages indicate what?

1. The intended position of the valves

2. The historical operation of the valves

3. The actual position of the valves

4. The maintenance status of the valves

The correct answer is: The actual position of the valves

The bleed air valves displayed on the ECS (Environmental Control System) and A/ICE (Anti-Ice) synoptic pages serve to provide the flight crew with real-time information about the actual position of the valves. This is crucial for the crew to understand the status of the aircraft’s systems and to make informed decisions regarding engine performance, cabin pressure, and environmental control functionalities. When monitoring these synoptic pages, observing the actual position of the bleed air valves can help in diagnosing any issues or understanding how the system is responding under different flight conditions. For instance, whether the valves are open or closed can affect how air is distributed throughout the aircraft for various systems such as air conditioning and engine de-icing. The distinction from other options lies in the fact that the system is designed to provide current operational data rather than historical performance, intended positions, or maintenance statuses. This makes the actual position displayed an essential aspect of operational safety and efficiency for the flight crew.