ANTI ICE

Question 1

WING anti ice pb on while on the ground

Answer 1

It self tests for 30 seconds, and then the valves close until the aircraft is airborne.

Question 2

PROBE/WINDOW HEAT pb

Answer 2

Use to remove ice or fog from the windows during preflight, but it must be selected off before T/O so it operates in automatic mode.

Question 3

What part of the wing is heated?

Answer 3

the outboard 3 wing slats

Question 4

What position do the WING and ENG anti ice valves fail to if electrical power is lost?

Answer 4

Wings valves close
Engines valves open

Question 5

What significance does wing sweep have on icing?

Answer 5

The greater the sweep the lesser the ice acretion

Question 6

WING fault light

Answer 6

• valve disagreement
• low pressure

Question 7

Can wing anti ice be used on approach and landing?

Answer 7

Yes, but it should only be considered in severe icing because second segment climb could be affected if a go around is needed.

Question 8

After take off when can wing anti ice be selected on?

Answer 8

After the aircraft is in a clean wing configuration and conditions warrant its use

Question 9

TAT

Answer 9

Total Air Temperature
(RAT)

Question 10

SAT

Answer 10

Static Air Temperature
(OAT)

Question 11

TAT and SAT use?

Answer 11

TAT to turn on anti ice, and
SAT to turn off anti ice