What is the position of the isolation valve when the ISOLATION VALVE switch is in AUTO?
发布于 2021-02-03 04:41:49
【单选题】 A A.The isolation valve is always open B B.The isolation valve is always closed. C C.The isolation valve automatically modulates between open & closed, depending on pneumatic load. D D.Open when any Engine Bleed Air switch or Air Conditioning pack switch is positioned OFF.
