Boeing 777 Anti Ice
Boeing 777 Anti Ice 15 Questions at a time (45 Questions Total)
1 / 15
What action should you take if the ICE DETECTORS EICAS message displays?
2 / 15
What position should the WING ANTI-ICE selector be in for taxiing in icing conditions?
3 / 15
When will the ANTI-ICE ON EICAS message be displayed?
4 / 15
What does the WINDOW HEAT R FWD EICAS message mean?
5 / 15
Why are the wipers never operated on a dry windshiled?
6 / 15
When will wing anti-ice operate automatically?
The wing anti-ice system operates automatically only in flight. This means that the system is designed to activate and de-activate itself without any manual intervention when the aircraft is in the air. It does not operate automatically on the ground, indicating that the system needs to be manually controlled during ground operations. The answer also indicates that the system does not depend on the Total Air Temperature (TAT) being above 10 degrees Celsius for automatic operation.
7 / 15
What do the EAI symbols on EICAS indicate?
8 / 15
An additional wing anti-ice inhibit for Automatic Wing Anti-ice operation (independent of the TAT inhibit), is active during the takeoff phase of flight.
Automatic wing anti-ice operation is inhibited for 10 minutes after takeoff. Manual wing anti-ice operation is not affected by this inhibit.
9 / 15
The selectors must be ON for the engine anti-ice system to operate on the ground, since AUTO does not operate on the ground.
10 / 15
There are three angle-of-attack (AOA) sensors, mounted aft of and above the pitot probes on each side of the fuselage.
11 / 15
When a Wing Anti-ice Valve is open, the wing anti-ice (WAI) annunciation is displayed below the EICAS N1 indication.
12 / 15
The Wing Anti-ice system operates through the delivery of hot air to the three midwing slats.
The hot air for wing anti-ice is provided by the pneumatic system.
13 / 15
The bleed air for Engine Anti-ice comes directly from the associated engine and not from the Pneumatic System ducting.
14 / 15
Each engine has a dual loop anti-ice system duct leak detection system. If an anti-ice duct leak is detected:
15 / 15
What is the position of an engine anti-ice valve when the ENGINE ANTI-ICE selector is in AUTO and EAI is displayed?
When the ENGINE ANTI-ICE selector is in AUTO and EAI is displayed, it indicates that the engine anti-ice valve is open. This means that the valve is allowing hot air from the engine to flow into the engine intake, preventing ice from forming.
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