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
What position should the ENGINE ANTI-ICE selectors be in for taxiing in icing conditions?
4 / 15
Why are the WIPER selectors set to OFF during preflight?
5 / 15
Which windows are provided with backup anti-fog heat?
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
When can engine anti-ice be operated manually?
Engine anti-ice can be operated manually both on the ground and in flight. This means that the system can be activated to prevent ice from forming on the engine during both stationary and moving conditions. The option "On the ground or in flight" indicates that the anti-ice system can be used in either situation, providing flexibility and ensuring the safety and efficiency of the engine operation. The condition of the TAT (Total Air Temperature) being above 10 degrees is not relevant to the operation of the engine anti-ice system.
8 / 15
A backup anti-fogging system for the flight deck windows operates automatically if there is a primary window heat system failure.
A backup anti-fogging system is available for the forward windows only: it operates automatically if there is a primary window heat system failure.
9 / 15
A backup anti-fogging system for the forward windows can be operated manually if there is a primary window heat system failure.
A backup anti-fogging system for the forward windows operates automatically if there is a primary window heat system failure.
10 / 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.
11 / 15
The bleed air for Engine Anti-ice comes directly from the associated engine and not from the Pneumatic System ducting.
12 / 15
With the WING ANTI-ICE selectors set to AUTO in flight, the wing anti-icing valves open when icing conditions exist and bleed air pressure is available.
13 / 15
Probe Heat automatically operates when either engine is operating.
The level of heat provided to the pitot probes is automatically set a lower level on the ground to protect from over heating the elements. Full heat level is provided in flight.
14 / 15
The Wing Anti-ice system can operate automatically or can be selected ON-OFF manually by the crew.
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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