Pneumatics Flashcards
APU air is available in flight up to an altitude of approximately ____.
22,000 feet
The Equipment cooling system draws air from___.
the cabin
If CACTS Control of Cabin Temperature Zones fail, pack flow rate is modulated to achieve a pack outlet temperature between ____ and ____ degrees F.
40, 110
The left and right body bleed air pressurizes the ____.
C1 and C2 air driven hydraulic pumps
The expanded air display is presented on the EICAS when __________.
the air synoptic is displayed on an MFD
On the ground, if the equipment cooling system is inoperative, ____.
the ground crew call horn sounds and an EICAS message appears
The APU bleed air switch is normally left in the ____ position.
AUTO
The aft and bulk cargo compartment temperatures are controlled via lavatory/galley vent fans which pull air across temperature sensors for each compartment. If both vent fans fail, the cargo heat system ________.
is not provided
Equipment cooling will automatically switch to the override mode when ____.
the forward cargo fire extinguishing system is armed
What is the maximum pressure altitude for an APU to Pack takeoff?
6900
The AIR synoptic shown here indicates a bleed air loss in the ____ duct.
Left and Center body isolation valves closed
left body
- Refer to the synoptic. With a left body duct loss, which air driven hydraulic pump(s) (ADPs) is/are still available?
C2 ADP
Using info presented on this synoptic, with the APU running, is APU air available for other bleed air functions
APU air is not available for any bleed air function.