Anti Ice

Question 1

With the NACELLE ANTI-ICE Switches in AUTO, bleed air opens the nacelle anti-ice valve when icing conditions are sensed :

Answer 1

In Flight - FCOM II / 3.10.2 / 3.20.1

Question 2

When will the nacelle anti-ice valves close after a landing in icing conditions?

Answer 2

Upon engine shutdown. - FCOM II / 3.10.1

Question 3

With the NACELLE ANTI-ICE Switches ON :

Answer 3

The engine igniters operate continuously. - FCOM II / 3.10.1

Question 4

What does the EICAS Advisory message >ANTI-ICE mean?

Answer 4

Any Nacelle Anti-ice switch or the Wing Anti-ice switch is ON, and TAT is more than 12°C and icing conditions do not exist. - FCOM II / 3.30.1

Question 5

Switching the WING ANTI-ICE Switch to ON, will :

Answer 5

Open the wing anti-ice valves in flight, but is ineffective when leading edge flaps are extended. - FCOM II / 3.20.2 / 3.20.3

Question 6

With the WING ANTI-ICE Switch in AUTO, the wing anti-ice valves open in response to inputs from the ice detection system, when :

Answer 6

The leading edge flaps are retracted and in flight only - FCOM II / 3.10.2

Question 7

When is Nacelle Anti-Ice Manual Operation possible?

Answer 7

On the ground and in flight - FCOM II / 3.10.1

Question 8

The WINDOW HEAT Switches Control heating for:

Answer 8

The windshields only.

Question 9

Positioning the First Officer’s Windshield (WSHLD) Air Switch ON, will direct conditioned air to :

Answer 9

Only to the first officer’s windshield.

Question 10

When are the two total air temperature probes electrically heated?

Answer 10

In flight.

Question 11

Is Nacelle Anti-Ice system operation possible when the ENGINE BLEED AIR Switch is selected OFF?

Answer 11

Yes, except when PRV has been closed due to bleed system related failures.

Question 12

What does the green NAI indication displayed beside the EICAS N1 indication mean?

Answer 12

Nacelle anti-ice valve is open.

Question 13

The Wing Anti-Ice system can be operated manually :

Answer 13

Only in flight.

Question 14

Side window heating is automatic and no flight deck controls are provided : (True of False)

Answer 14

TRUE

Question 15

When are the four pitot-static probes and two angle of attack probes electrically heated?

Answer 15

When any engine is operating.

Question 16

What should be the WING ANTI-ICE Switch position for taxiing in icing conditions?

Answer 16

AUTO

Question 17

Describe the engine anti-ice system

Answer 17

when selected, NAI uses bleed air as long as the PRV valve is open

Question 18

When is NAI required?

Answer 18

Icing conditions (10C or below and visible moisture or dew point spread < 3C) and in descent with SAT < -40C for engine flameout mitigation

Question 19

What type of engine operation must be observed before takeoff with NAI on?

Answer 19

30 second sunup to 60% N1 at intervals no more than 30 minutes if OAT < 3C

Question 20

How can you tell if NAI is on?

Answer 20

green NAI indication by respective N1 on primary EICAS

Question 21

Does WAI operate on the ground?

Answer 21

no

Question 22

Does WAI operate when the flaps are extended?

Answer 22

yes in the air but it is ineffective

Question 23

When are the pitot static and angle of attack probes heated?

Answer 23

when any engine is operating