11.12 Flashcards
How is ice detected by the electronic ice detectors?
Ice decreases the frequency of the vibrating probe tip and the frequency change is detected.
Example sentence: The ice detection system alerted the pilot to potential icing conditions.
What method is employed to remove snow and ice prior to flight?
De-ice the aircraft using de-icing fluid and by following company procedures.
Additional information: De-icing procedures are crucial for ensuring safe takeoff and flight.
Where is the heat for the wing and engine anti-ice systems supplied from?
The heat comes from the hot air of the engine bleed air system for itself and the pneumatic system for the wing.
Example sentence: The wing anti-ice system relies on pneumatic heat to prevent ice buildup.
How are the engine and wing thermal anti-icing systems operated?
Each engine anti-ice system has its own control switch the left and right wing anti ice are operated by only one switch.
Example sentence: The pilot activated the engine anti-icing system to prevent ice formation during the flight.
Which of the following statements is correct relating to aircraft windscreen wipers?
They can be switched on when the windscreen is wet and the aircraft speed is less than 250kts.
Additional information: Windscreen wipers are essential for maintaining visibility during adverse weather conditions.
What is a rotary type ice detector driven by?
A single phase AC motor.
Example sentence: The rotary ice detector’s motor failed, leading to a potential ice detection system malfunction.
How are the probe heating systems switched on?
Automatically when the engine is started.
Example sentence: The probe heating system activated as soon as the engine roared to life.
How many holes per inch are laser driller into TKS weeping wing chemical anti ice titanium panels?
Example sentence: The TKS weeping wing panels were carefully crafted with 800 holes per inch for optimal anti-icing performance.
How long will the capacity of a chemical wing anti-icing system reservoir enable the system to operate for?
1-2 hours.
Example sentence: The chemical wing anti-icing system reservoir provided enough capacity for 1-2 hours of continuous operation.
How long are pneumatic de-icing boots inflated for?
6-8 seconds.
Example sentence: The pneumatic de-icing boots inflated rapidly to remove ice accumulation on the aircraft’s surfaces.
The air source for the pneumatic de-icing boots fitted to turbine engine aircraft is supplied by which of the following components?
The engine compressor.
Example sentence: The engine compressor provided the necessary air source for the pneumatic de-icing boots on the turbine engine aircraft.
When should the pneumatic de-icing boots be cleaned?
During the aircraft scheduled wash.
Example sentence: The maintenance crew cleaned the pneumatic de-icing boots as part of the aircraft’s routine maintenance schedule.
How is electrical power supplied to the propellor de-icing boot?
Slip rings
No additional information.
To prevent thermal shock in an electrically heated windshield, power is ramped slowly for approximately how long?
4 minutes.
No additional information.
Which type of temperature coefficient do window heating system temperature sensors posses?
A positive temperature coefficient
No additional information.
