The aircraft is on the ground. You place the WING ANTI-ICE switch to ON. Which conditions will allow the wing anti-ice valve to open?
A.A.Thrust on both engines is above the setting for takeoff thrust or the temperature inside both wing distribution ducts is above the thermal switch activation temperature.
B.B.Thrust on both engines is above the setting for takeoff thrust and the temperature inside both wing distribution ducts is below the thermal switch activation temperature.
C.C.Thrust on both engines is below the setting for takeoff thrust and the temperature inside both wing distribution ducts is below the thermal switch activation temperature.
D.D.Thrust on both engines is below the setting for takeoff thrust or the temperature inside both wing distribution ducts is above the thermal switch activation temperature.
正确答案是C