Boeing 777 Air Systems
Boeing 777 Air Systems Revised 10/7/24
1 / 15
During preflight, what position should the APU BLEED AIR switch be in?
2 / 15
What does the MAN position on the FLT DECK TEMP control do?
3 / 15
When does the ground crew call horn sound?
4 / 15
Which system(s) supply trim air to the flight deck?
5 / 15
Which trim air valve can be moved directly by the flight crew, and how is it monitored?
6 / 15
Which component can be reset by the air conditioning reset switch.
7 / 15
What happens if the forward equipment cooling primary supply fan fails?
8 / 15
The cabin altitude limiter closes both outflow valves if cabin altitude exceeds:
9 / 15
What will cause the automatic closure of a bleed valve?
10 / 15
How many packs are there and what is their main function?
11 / 15
What determines the pack outlet temperature?
12 / 15
If a pack overheats or fails the pack shuts down and an air conditioning may be needed.
13 / 15
In the cabin altitude controller cruise mode, maximum cabin altitude is 8,000 feet. The cabin altitude controllers enter cabin altitude controller descent mode at T/D or at initial descent of approximately _____ from cruise altitude, regardless of T/D.
14 / 15
If one pack is in standby cooling and the other pack is operating normally, the pack in standby cooling mode shuts down at lower altitudes and higher outside air temperatures when ambient conditions do not permit standby cooling.
15 / 15
For Boeing 777, the APU Bleed Air is available at all altitudes.
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