APU Flashcards
(12 cards)
Q.Will the APU shut down automatically in the event of an actual APU fire warning (not a test)?
A.Yes, both on ground and in flight.
Q.Is APU Bleed Air available in‑flight?
A.Yes, for engine start only.
Q.Is APU Bleed Air available in-flight?
A.Yes, for engine start only.
QFrom where does the APU receive its fuel?
A.The motive flow line to the left fuel ejector.
Q.What APU switch will close the APU fuel shutoff valve immediately when selected to OFF?
A. Master
Q.A normal APU shutdown is initiated by pushing the:
A. APU STOP switch.
Q.What would happen if APU air is selected on immediately after APU start?
A.The APU air would come on 1 minute later.
Q.An amber APU ESSENTIAL CAS message appears in-flight. What does this indicate?
A.A malfunction is detected while the APU is running in the Essential mode in-flight
Q.What will happen when the APU Bleed is selected ON while the engine bleeds are selected ON while on Ground?
A.There is a risk of reverse flow. The engine and APU Bleed should never be active at the same time.
