QDB Boeing Communication&Electric Flashcards
When will the cockpit voice recorder automatically operate?
A) Anytime the battery switch is ON
B) Anytime DC power is available
C) In flight only
D) Operates when one engine is started until 5 min after last engine is shut down
D
Which communications radio system can be operated from standby electrical power? A) VHF-1 B) VHF-2 C) Both VHF-1 and VHF-2 D) VHF1-HF1
A
Which is the statement s correct about the switch selection on ASP (audio selector panel)?
A) VHF-1 is received only when VHF - 1 receiver switch is selected (pressed down)
B) The VHF-2 and cabin/service interphone receiver switches may be selected at the same time
C) VHF-2 is received only when the VHF-2 transmitter switch is selected
D) Only one receiver switch can be selected at a time
B
What is the significance of an illuminated TR UNIT light while in flight? A) Any one TRU has failed B) Only TR1 has failed C) Only TR3 has failed D) TR1 or TR2 and TR3 has failed
D
Which busses are isolated from each other when the CROSS BUS TIE RELAY opens? A) Isolate transfer bus 1 and 2 B) Isolate DC bus 1 from DC bus 2 C) Disconnect TR1 and TR3 D) Isolate DC bus 1 from standby DC bus
B
The standby power switch is in the AUTO position. When will the automatic transfer of standby power to alternate source occur?
A) AC transfer bus 2 or DC bus 1 loses power
B) AC transfer bus 1 or DC bus 2 loses power
C) AC transfer bus 2 or DC bus 2 loses power
D) AC transfer bus 1 or DC bus 1 loses power
D
What will cause the DRIVE light for the respective IDG to illuminate? A) Low oil pressure in the IDG B) Low generator frequency C) Low generator voltage D) High generator voltage
A
which statement about illumination of the GND POWER AVAILABLE light is correct?
A) Ground power has been plugged in and automatically powers both ground services busses
B) Ground power has been plugged in and meets airplane ppwer quality standards
C) Ground power has been plugged in, however airplane power quality is not measured
D) Ground power has been plugged in, and automatically powers both transfer busses
B
Which engine parameter does the EEC use to control thrust in normal mode? A) N1 B) N2 C) EGT D) Fuel Flow
A
What is the primary source of power for the thrust reverser system?
A) The pneumatic system
B) The standby hydraulic system
C) Either electrical system
D) Hydraulic system A for the N 0 1 thrust reverser, hydraulic system B for the N 0 2 thrust reverser
D
What is the power source for the right ignition system? A) DCBUS2 B) AC transfer BUS 2 C) AC standby BUS D) The Battery
C
