B777 Anti-ice and Rain

Boeing 777 Anti Ice

Boeing 777 Anti Ice 15 Questions at a time (45 Questions Total)

1 / 15

What occurs when engine anti-ice is operating?

The ENGINE ANTI-ICE ON memo message displays.

Approach idle is selected.

The backup window system heat system operated.

Probe heat switches from reduced to full power.

2 / 15

Why are the WIPER selectors set to OFF during preflight?

To avoid possible injury to maintenance personel.

To avoid damage to the wiper blades.

To allow the hydrophobic coating to warm up.

To avoid wiper operation on dry windshields.

3 / 15

Why are the wipers never operated on a dry windshiled?

The bugs will be smeared all over the window.

The hydrophobic coating may be scratched.

The wipers blades will be ruined.

The wiper motor may burn out.

4 / 15

Which windows are provided with backup anti-fog heat?

Left pilot's forward window and right pilot's side window.

Both pilot's forward windows.

Left pilot's forward and side window and right pilot's forward and side window.

All windows.

5 / 15

When will wing anti-ice operate automatically?

Both on the ground and in flight.

Only on the ground.

Only in flight.

Only when TAT is above 10°C.

6 / 15

When can wing anti-ice be operated manually?

Only on the ground or in the air.

Only when TAT is above 10°C.

Only on the ground.

Only in flight.

7 / 15

What is the position of an engine anti-ice valve when the ENGINE ANTI-ICE selector is in AUTO and the EAI is displayed?

Cannot be determined.

Open.

Closed.

Inoperative.

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.

True.

False.

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.

True.

False.

10 / 15

Does Wing Anti-ice operate when the aircraft is on the ground?

True.

False.

11 / 15

There are no controls for the operation of Probe Heat.

True.

False.

12 / 15

The Wing Anti-ice system operates through the delivery of hot air to the three midwing slats.

True.

False.

13 / 15

The Wing Anti-ice system is controlled by the Wing Anti-ice switch. The switch has 3 positions. The bleed air for Wing Anti-ice comes from the Pneumatic System ducting and flows to each wing through:

A common anti-ice valve

Two identical anti-ice valves.

A separate anti-ice valve.

Three identical anti-ice valves.

14 / 15

Each engine has a dual loop anti-ice system duct leak detection system. If an anti-ice duct leak is detected:

The affected engine anti-ice switch is automatically switched off.

The affected engine anti-ice must be switched off if not automatically switched off.

The affected engine anti-ice valve closes.

The affected engine anti-ice switch must be switched off.

15 / 15

The AOA vanes are heated:

At all time when AC or DC power is on.

On the ground and in flight when either engine is operating.

At all time when AC power is on.

At all time when DC power is on.

Your score is

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