What is the state of XBLEED 1-2 when using AMSEC control?

In the context of the Dassault Falcon 7X aircraft, the configuration of the XBLEED 1-2 systems when using AMSEC control is such that they are always open. This state allows for the effective management of bleed air between the left and right engine systems, which is critical for maintaining cabin pressurization and ventilation, especially during various flight conditions.

AMSEC, or Automatic Mode Engine Start and Embark, coordinates the engines' bleed air usage for optimal efficiency. By keeping the XBLEED 1-2 always open, the system ensures that there is a consistent flow of pneumatic power available, making it easier to manage pressurization and engine start sequences without manual intervention.

Understanding that XBLEED 1-2 is designed this way helps pilots and maintenance teams predict its behavior and troubleshoot any anomalies without uncertainty about its operational state. The other choices suggest conditions or specific states that would not align with the default operational expectation of the XBLEED systems under AMSEC control.