Ice and Rain Flashcards
0
Q
How do the ice detectors sense icing conditions?
A
They vibrate a high frequency. Icing conditions the probe vibration decreases.
1
Q
How many ice detectors are equipped?
A
2
2
Q
What determines the temperature of the wing anti-icing skin?
A
Position of the slats. Higher temperature when slats are extended.
3
Q
What do the wing anti-ice valves fail to?
A
Closed
4
Q
When will the wing anti-ice valves close?
A
- bleed air supply pressure is removed
- loss of electrical power at the valve
- anti-ice duct failure is detected
5
Q
Can one engine supply bleed air for all the anti-icing?
A
Yes, via the crossbleed duct and valve
6
Q
With wing deice on, what does the N2 gauge change to?
A
Gauge changes white from 0-77%
7
Q
What do the cowl engine anti-ice valves fail to?
A
Open
8
Q
L (R) COWL A/I caution message
A
- switch on with no pressure detected
- switch off and pressure is detected
