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 does the WINDOW HEAT R FWD EICAS message mean?
3 / 15
Which windows are heated for both anti-ice and anti-fog protection?
4 / 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.
5 / 15
Window heat - An INOP light illuminates in the respective switch when:
6 / 15
The engine anti-ice systems operate through the delivery of bleed air to the inlet cowl. The hot air for engine anti-ice is provided:
7 / 15
Does Wing Anti-ice operate when the aircraft is on the ground?
8 / 15
If the total air temperature (TAT) is above 10 deg.C, both Manual and Automatic wing anti-ice operation is inhibited for:
The TAT inhibit is removed any time TAT drops below 10 deg.C.
9 / 15
Only the forward windows have exterior surface anti-icing. The forward windows have exterior and interior surface anti-fogging protection. The side windows have interior surface anti-fogging protection only.
10 / 15
The automatic ice detection system consists of:
The detector probes normally vibrate when the detection system is operating. If ice accumulates on a probe, the probe will vibrate at a lower frequency. The probe heater will turn on to melt the ice until the vibration frequency returns to normal. Once a detector probe has ice build-up, it is automatically de-iced.
11 / 15
The bleed air for Engine Anti-ice comes directly from the associated engine and not from the Pneumatic System ducting.
12 / 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.
13 / 15
When the Engine Anti-ice is on (either in the Auto or Manual mode), the engine is selected to: Approach Idle by the EEC.
14 / 15
What does the EAI indicate when displayed on the Primary EICAS N1 indication?
The correct answer indicates that the engine anti-ice system is open. This means that the system is actively providing anti-ice protection to the engine, preventing ice from forming and potentially causing damage.
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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