Ice and Rain Protection

Question 1

What is the source of heating for wing and cowl anti-ice?

Answer 1

6th and 10th stage bleed air

Question 2

When is cowl anti-ice required to be ON during ground operations?

Answer 2

OAT is 10º C or less and one of the following exist:
Visible Moisture (Fog with vis. 1 sm or less, rain, sleet, snow, or ice crystals)
Contaminated ramps, taxiways, or runways

Question 3

When is cowl anti-ice required to be ON during flight?

Answer 3

TAT is 10º C or less in visible moisture (Clouds, rain, snow, sleet, or ice crystals)
or when ICE is annunciated

Question 4

When is wing anti-icerequired to be ON during ground operations?

Answer 4

OAT is 5º C or less and one of the following exist:
Visible Moisture (Fog with vis. 1 sm or less, rain, sleet, snow, or ice crystals)
Contaminated ramps, taxiways, or runways
If Type II, Type III, or Type IV anti-ice fluid is applied turn wing anti-ice ON just prior to takeoff

Question 5

When is wing anti-ice required to be ON during flight operations?

Answer 5

TAT is 10º C or less in visible moisture (Clouds, rain, snow, sleet, or ice crystals)
with airspeed less than 230 KIAS
except when SAT is less than or equal to -40º C
or when ICE is annunciated

Question 6

What is a good ICE detector test indication?

Answer 6

ICE caution message
ICE switch/light illuminated
ADS HEAT TEST OK advisory message

Question 7

What is the purpose of the wing anti-ice cross bleed switch?

Answer 7

To allow the bleed air from one engine to anti-ice the opposite wing

Question 8

What occurs with the Windshield Heat on LOW?

Answer 8

All 4 panels are heated to 24º C

Question 9

What occurs with the Windshield Heat on HIGH?

Answer 9

Side windows are heats to 24º C

Both windshields are heated to 41º C

Question 10

The Left and Right Pitot/Static probes are:

Answer 10

Electrically Heated

Question 11

Ice Detection probes are:

Answer 11

Electrically De-iced

Question 12

Ice Detector switch light illuminates amber to indicate aircraft entry into icing with:

Answer 12

Wing and/or cowl anti-ice off

Question 13

The windshield wipers operates

Answer 13

together, at the last speed selected by either pilot

Question 14

At what point does the Air Data Sensor Heater Control energize all the Probes and sensor heaters regardless of probe or generator switch position?

Answer 14

Weight off Wheels (WOW)

Question 15

The windshield wipers will operate at the most recently selected speed. T/F

Answer 15

True

Question 16

Ice and Rain protection systems displayed Caution/Warning, Advisory/Status Messages on…

Answer 16

EICAS Primary/Status Pages

Question 17

What does the DET TEST switch light do when pressed?

Answer 17

Ice detectors and air data probes and sensor heaters