During flights we have come to know that the APU can be shut down shortly after the engines start running, as the energy needed can then be produce by the engines. What more can you tell about the relationship between the Engine and the APU for the B777 plane? Take the test to find out!
TO 1
D-TO
TO
TO 2
The engines will exceed the maximum rated thrust.
The engines will produce maximum climb thrust
The engines will produce maximum rated thrust.
The EEC alternate mode will automatically engage.
The engines will exceed the maximum rated thrust.
The engines will produce maximum cruise thrust.
The EEC alternate mode will automatically engage.
The engines will produce maximum rated thrust.
Engine oil pressure is low.
Engine oil pressure is high.
Engine oil temperature is low
Engine oil temperature is high.
Engine oil pressure is low.
Engine oil pressure is high.
Engine oil temperature is low.
Engine oil temperature is high.
The engine fuel valve on the left engine is closed.
The spar or engine fuel valve on the left engine has not reached its commanded position.
Both the spar and the engine fuel valves on the left engine are commanded to the same position.
The fuel/oil heat exchanger valve is not functioning.
The engine fuel valve on the right engine is open.
Both the spar and the engine fuel valves on the right engine are commanded to the same position.
The spar or engine fuel valve on the right engine has not reached its commanded position.
The fuel filter bypass valve is not functioning.
After START has been selected on the START/IGNITION selector
After reaching maximum motoring speed
After the engine stabilizes at idle
After 18% N2 has been reached
Left hydraulic system
Center hydraulic system
Left engine bleed air
Right engine bleed air
Left engine bleed air
Right engine bleed air
Center hydraulic system
Right hydraulic system
The right engine reverser will provide maximum reverse thrust for a limited time.
The right engine reverser will not deploy or will be limited to idle on landing.
The right engine reverse thrust indication is not valid.
The right engine reverse thrust is limited to rejected takeoffs only.
The secondary engine indications
The primary engine indications
The status display
There is no flight deck display for engine oil quantity
Low oil pressure
High oil temperature
Broken fanblade
Hot start
Auto-relight provides flameout protection by activating the autostart system.
Auto-relight provides flameout protection by activating both ignitors.
Auto-relight opens the start valve automatically if the engine N2 decreases.
Auto-relight provides hung start protection by deactivating the ignitor.
The APU is out of fuel.
The APU in cooldown mode.
The APU has automatically shut down.
The APU controller has shut down the packs.
The APU is out of fuel.
An APU limit has been exceeded.
The APU has automatically shut down.
The APU pneumatic output is limited.
APU controller failure
High EGT
Low oil pressure
High oil temperature
TO 1
D-TO 1
TO
D-TO
The EEC automatically uses the alternate mode.
Full rated thrust is automatically commanded on the affected engine.
The Autothrottle disconnects.
The affected engine goes to flight idle.
The engine operates in the soft alternate mode.
The EICAS message ENG CONTROL is displayed
Maximum and commanded N1 values are removed from the N1 indication.
Reference and target N1 are displayed on the N1 indication.
Control for the left engine is in the alternate mode.
A fault is detected in the left engine control system.
Left engine speed is below idle.
A limit has been exceeded on the left engine.
The right fuel control switch is in RUN at low engine RPM with the autostart switch OFF.
The right engine start valve is open when commanded close.
Autostart has failed to start the left engine.
Autostart is attempting to start the right engine, wait for further indications.
The left engine autostart switch is OFF.
Autostart has failed to start the left engine.
The left engine start/ignition selector remains in the START position or the start valve is open when commanded closed.
The left fuel control switch is in RUN at low engine RPM with the autostart switch OFF.
The displayed line is red.
The line displays with the fuel control switch in CUTOFF
The line displays with N2 RPM below idle.
The line displays at all times on the ground.
The engine RPM is below idle and the fuel control switch is in RUN.
The In-Flight Start Envelope display shows the airspeed range foe an in-flight start at the current flight level when the airplane is below the maximum flight level for an in-flight start.
The respective engine fire switch is in.
The In-Flight Start Envelope display is magenta.