7.5 icing

Question 1

one in-flight condition necessary for structural icing to form is

Answer 1

visible moisture

Question 2

how will frost on the wings of an airplane affect takeoff performance

Answer 2

frost will disrupt the smooth flow of air over the wing, adversely affecting its lifting capability

Question 3

which conditions result in the formation of frost

Answer 3

the temperature of the collecting surface is at or below the dewpoint of the adjacent air and the dewpoint is below freezing

Question 4

how does frost affect the lifting surfaces of an airplane on takeoff

Answer 4

frost may prevent the airplane from becoming airborne at normal takeoff speed

Question 5

in which environment is aircraft structural ice most likely to have the highest accumulation rate

Answer 5

freezing rain

Question 6

the presence of ice pellets at the surface is evidence that there

Answer 6

is a temperature inversion with freezing rain at a higher altitude

Question 7

why is frost considered hazardous to flight

Answer 7

frost spoils the smooth flow of air over the wings, thereby decreasing lifting capability