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Question 19 (1 point) Test data indicate that ice, snow, or frost having a thickness and roughness similar to medium or coarse sandpaper on the leading edge and upper surface of a wing can reduce lift by as much as 30 percent and increase drag by 40 percent. () True () False Question 20 (1 point) ee refers to the accumulation of ice on the exterior of the aircraft during flight through clouds or liquid precipitation. (_) None of the above C) Over-wing icing (_) Structural icing (_) Carburetor icing Question 21 (1 point) If the aircraft airframe skin temperature is 5C and you fly through a cloud, you can expect to pickup airframe icing. (_) True (_) False Question 22 (1 point) Know the capabilities of your aircraft and how and when to use the anti-/de-icing equipment. (_) True (_) False