Engines & APU Knowledge Review Flashcards
The main airplane battery powers the APU _____.
inlet door, fuel valve and fire detection system
The APU continues to operate in the attended mode and the EICAS message
APU LIMIT displays for a ____ fault.
High EGT
Low oil pressure
•High oil temperature
There is no cool-down period when the APU is shut down after the APU LIMIT
message is displayed.
How can pilots be certain that the APU is operating normally?
The message APU RUNNING is displayed on EICAS.
Oil pressure, temperature, and quantity are _____.
displayed on the secondary engine display.
The START/IGNITION selectors control the _____ and provide continuous
ignition capability.
starter air valves
What does the autostart system NOT monitor during engine start?
Oil pressure and temperature.
The autostart system will not attempt a second start on the ground if ______.
there is no N1 rotation.
In the alternate mode, the EEC uses _____ as the controlling parameter.
N1
The normal power source for engine ignition is main AC power. The backup source for ignition is ______.
Standby AC power
Forward throttle movement is mechanically restricted until _____.
the reverse thrust lever is fully down.
Secondary engine indications are automatically displayed when _____.
Displays initially receive electrical power
FUEL CONTROL switch moved to CUTOFF in flight
Engine fire switch pulled in flight
FUEL FLOW ENG alert message displayed
Secondary engine parameter exceeded
N2 RPM below idle in flight
On the ground, the autostart system will attempt a maximum of _____ start(s) (200A/B).
2
During a ground Autostart with the FUEL CONTROL switch in RUN, at the appropriate _____ the engine valve opens and the ignitor(s) energize.
N2
