Air Systems Knowledge Review Flashcards
Recirculation fans _____ and allow packs to operate at a reduced flow.
improve cabin ventilation
The _____ cargo compartments have independent bleed air heating systems.
aft and bulk
When on the ground, the ground crew call horn will sound and an EICAS
advisory message will be displayed when _____.
the forward equipment cooling system is inoperative.
If an automatic shutdown of the cargo heat system occurs, cargo heat _____.
to the related compartment, cannon be restored in flight.
If a duct leak is detected, the appropriate valves _____ to isolate the leak.
close automatically
When the LDG ALT selector knob is pulled out/ON, _____.
the landing altitude can be set manually by rotating the knob left or right.
The LDG ALT (landing altitude) display shows _____.
when half way or more than 400 NM from departure airport.
The left pack supplies air to the cockpit at a higher pressure than the passenger cabin _____.
to prevent smoke from entering the cockpit from the passenger cabin.
Shoulder and foot heat for pilots is available _____.
in flight only.
If the EQUIP COOLING OVRD light is illuminated and AUTO is visible, the _____.
smoke override mode has been automatically selected.
For _____, pack control automatically uses standby cooling as a backup mode. The EICAS advisory message PACK MODE (L, R) displays,
Certain internal malfunctions.
When pulled ON, the LDG ALT selector removes the FMC landing altitude.
Rotating left or right manually sets the landing altitude. Pushing the selector in _____.
restores the FMC landing altitude.
Pneumatic system air can be supplied by the _____.
engines, APU, or ground air source
The _____ cargo compartments are heated and pressurized.
forward aft and bulk
If an automatic shutdown of the cargo heat system occurs, cargo heat _____.
cannot be restored in flight.
