ICE PROTECTION Flashcards
The wing anti-ice system:
A. should be set to AUTO mode until 400 ft above field elevation.
B. is inhibited in AUTO or ON modes during takeoff.
C. is inhibited in AUTO mode during takeoff up to 1500 ft AGL or after 2 minutes.
D. should be set to AUTO mode for all phases of flight.
C
The RIGHT rotary switch on the WINDSHIELD HEAT panel controls the heater(s) for the:
A. right windshield only.
B. right windshield and the right side window.
C. right windshield and the left side window.
D. left windshield and the right side window.
C
Which source of bleed air is used to supply anti-icing for the wing leading edges and the engine cowls?
A. Engines only
B. Engines or external air
C. Engines or APU
D. APU
A
What occurs if the WING rotary switch is in the AUTO position when both ice detectors fail during icing conditions?
The crew must manually set the WIND, L and R COWL rotary swithces to ON if in icing conditions
Which source of bleed air is used to supply anti-icing for the wing leading edges and the engine cowls?
Engines only
When is the ADS PROBE HEAT soft key be used to turn on the air data smart probes (ADSPs), angle-of-attack (AOA) sensors, and total air temperature (TAT) probe heaters?
Select three responses.
A - When the airplane is in flight
B - When the airplane is on the ground
C - When the airplane is connected to a ground cart
D - When the auxiliary power unit (APU) is running
B, C and D
On the BLEED synoptic, when is the wing leading edge shown in red?
When the temperature of the leading edges is above the proper range
In flight, the L COWL and R COWL rotary switches on the ANTI-ICE panel are normally selected to what position?
A) ON or AUTO Position
B) ON Position
C) AUTO Position
D) OFF Position
C
If the WING rotary switch is in AUTO mode, when is the wing anti-ice system inhibited?
Select three responses.
A - The airplane is on the ground
B - During takeoff up to 1,500 ft AGL
C - Up to 2 minutes after takeoff
D - 1 minute after reaching an airspeed of 50 kt or greater
A, B, C
On the BLEED synoptic, when is a wing leading edge shown in amber?
A - When it is within normal operating temperature.
B - When the temperature of the wing leading edges is above the proper range
C - When bleed air is not flowing to the wing leading edge.
D - When the temperature is below the proper range.
D
When the ICE DETECTOR FAIL message is shown on the EICAS in flight, under what conditions must the wing anti-ice system be selected ON?
A - Total air temperature (TAT) is +5⁰ C and visible moisture is present
B - TAT is +5⁰ C and no visible moisture is present
C - Static air temperature (SAT) is -41⁰ C and visible moisture is present
D - SAT is -41⁰ C and no visible moisture is present
A
The L COWL and R COWL rotary switches on the ANTI-ICE panel are normally selected to AUTO.
True
False
True
How are the right windshield and left side window heated?
A - Both LEFT and RIGHT rotary switches must be selected ON
B - Windshields and windows are always heated regardless of the switch position
C - The RIGHT rotary switch must be selected ON
D - The LEFT rotary switch must be selected ON
C
What happens in icing conditions if the WING rotary switch is in AUTO and both ice detectors fail?
Select two responses.
A - The cowl anti-ice valve will be forced open, overriding the FADECs
B - An ICE DETECTOR FAIL caution message is shown on the EICAS
C - The wing and cowl anti-ice systems are automatically activated
D - The flight crew must manually select the WING, L COWL and R COWL rotary switches to ON
B and D
Which heater(s) are controlled by the RIGHT rotary switch on the WINDSHIELD HEAT panel?
Right Windshield and the left side window
Which statement about the wing anti-ice system is true?
It is inhibited in AUTO Mode during T/O up to 1500ft or after 2 min
