A、During main engine start only.
B、In all modes of operation.
C、Never, it＇s a shutoff valve.
答案：C
A、During main engine start only.
B、In all modes of operation.
C、Never, it＇s a shutoff valve.
答案：C
A. In the cutouts of the ceiling panels.
B. In the fixed partition walls.
C. In the cutouts of the ceiling panels and lateral right sidewall linings.
A. To regulate hot air pressure
B. To adjust the temperature in the three zones
C. To regulate basic temperature
A. ISA + 15℃ （59°F）
B. ISA + 30℃ （86°F）
C. ISA + 59℃ （138°F）
A. Center tank pump start.
B. Center tank pump stop.
C. Center tank pump stay as they are.
A. As soon as the GEN 1 LINE pushbutton is released out.
B. When any GEN 1 parameter is not correct.
C. When any GEN 1 parameter is not correct and the GEN 1 pushbutton is released out.
A. To ensure control and monitoring of the avionics ventilation system
B. To control and monitor the cargo ventilation components
C. To control and monitor the packs
A. The captain uses the 3rd occupant audio equipment.
B. The 3rd occupant uses the captain audio equipment.
C. The captain uses the 3rd occupant ACP.
A. A re-centering and active mode.
B. A re-centering and damping mode.
C. An active and damping mode.
A. AMU
B. SDAC
C. FWC
A. Electrically only
B. Manually only
C. Electrically or manually
