A、Critical parameter feedback signnals
B、Acknowledgment signals and DU failure information
C、A and B
答案：C
A、Critical parameter feedback signnals
B、Acknowledgment signals and DU failure information
C、A and B
答案：C
A. Red when in presence of a corrective RA detection.
B. Green when in presence of a corrective RA detection.
C. Red or green when in presence of a corrective RA detection depending on the sector band in which they are.
A. Permanently by the AEVC.
B. By a dedicated TEST pushbutton.
C. By a manual test from the CFDS.
A. During normal and alternate braking.
B. Only during normal braking.
C. Only when the auto brake system has failed.
A. When the LOCALIZER receiver is faulty.
B. When the deviation is excessive.
C. When the aircraft is out of range.
A. In any mode.
B. In MAP mode.
C. In WX/TURB mode only.
A. Automatic system 1 fail
B. Both automatic systema fail
C. Manual system fails
A. P.F.D
B. N.D
C. E/W
A. From cabin distribution ducts
B. From pack 1
C. From pack 2
A. By the vacuum created in the waste tank.
B. By the water flushing and gravity.
C. By water pressure.
A. On the PERF page.
B. On INIT page A.
C. On INIT page B.
