EAWS Phase III Boeing EA-18G Growler Practice Test

Which component is signaled to activate the anti-icing valves when the anti-icing system is activated?

FADEC Throttle Lever Landing Gear Controller In-Flight Refueling System

Correct Answer:

FADEC

Explanation:

When the anti-icing system is activated, the FADEC (Full Authority Digital Engine Control) signals the anti-ice valves to open. FADEC is the central engine computer that manages bleed-air flow and valve positions based on the anti-ice demand and engine state, ensuring the right amount of bleed air reaches the surfaces needing protection. The valve actuation is coordinated automatically by this electronic control, not by the throttle lever, landing gear controller, or in-flight refueling system. Those other systems handle power, gear, and refueling tasks, respectively, while FADEC handles engine-related bleed-air management, including anti-ice.

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