A、To enable the received audio signals to be selected.
B、To enable the received audio signals and the frequencies to be selected.
C、To enable the frequencies of all the radio communication systems to be selected.
答案：C
A、To enable the received audio signals to be selected.
B、To enable the received audio signals and the frequencies to be selected.
C、To enable the frequencies of all the radio communication systems to be selected.
答案：C
A. By system 1 to Capt PFD and F/O PFD
B. By system 2 to CAPT PFD and F/O PFD
C. By system 1 to CAPT PFD and by system 2 to F/O PFD
A. Memo messages.
B. Opearational status messages.
C. Warning message
A. No.
B. Yes.
A. A DC signal which depends on the tire pressure.
B. A frequency signal which depends on the tire pressure.
C. A pneumatic signal equal to the tire pressure.
A. Spoilers 1 to 5
B. Ailerons and spoilers 3 to 5
C. Ailerons and spoilers 2 to 5
A. To produce independent pneumatic and hydraulic power.
B. To produce independent pneumatic and electrical power.
C. To produce independent electrical and hydraulic power.
A. To the top line data bus.
B. To the mid line data bus.
C. To an ARINC 429 data link.
A. One
B. Two
C. Three.
A. When aircraft on ground, ELEC PUMP pb in AUTO position and OVRD (override) pushbutton is set to ON.
B. When G & Y system are detected in low pressure configuration.
C. As soon as one engine is running and OVRD pushbutton is set to "ON".
A. The fuel booster pumps pressure decreases.
B. The Engine is shut down or the ENG FIRE pushbutton is released out.
C. The Engine fire detection system senses an engine fire.
