A、Two stage centrifugal compressor design.
B、Signle stage centrifugal compressor design.
C、Three stage axial compressor design.
答案:B
A、Two stage centrifugal compressor design.
B、Signle stage centrifugal compressor design.
C、Three stage axial compressor design.
答案:B
A. On the front of each DEU.
B. On each DEU mount.
C. Only on the last DEU mount of each line.
A. Door open, gear up, door close, cancel gear up signal.
B. Door open, gear up, door close, maintain gear up signal.
C. Door open, gear up, door close, cancel door close signal.
A. At ground/flight transition.
B. At flight/ground transition.
C. Both.
A. Below 2300ft and one of the two qualifier inputs,of both qualifiers A and B, is valid.
B. Always when a windshear event is encountered.
C. When the AUTO/ON/STBY selector on the ATC/TCAS Control Unit is in STBY position.
A. On the scale of LDG ELEV switch selector
B. On the ECAM CAB PRESS page
C. No need because it is automatic
A. All four disconnect sensors.
B. One sensor on each wing.
C. Two sensors on one wing.
A. IGN START selection.
B. Flame out detected.
C. ECU failure.
A. When the AP is not engaged.
B. When the AP is engaged
C. At any time.
A. The exciter field is no longer supplied and the GCR trips.
B. The exciter field is still supplied and the GCR stays closed.
C. The exciter field is increased and the GCR trips
A. MAX mode.
B. MED mode.
C. LO mode.