34. Drag

Question 1

Induced drag is:

Answer 1

The byproduct of lift.

Question 2

Skin friction drag can be somewhat reduced by:

Answer 2

1. Flush riveting
2. Smooth paint
3. Waxing.

Question 3

Drag is produced by:

Answer 3

Moving the airplane through the air.

Question 4

Induced drag increases with the:

Answer 4

Increase of angle of attack.

Question 5

Induced drag:

Answer 5

Decreases with speed.

Question 6

Form drag:

Answer 6

Increases approximately as the square of the speed increases.