TC PPL Written Exam: General Knowledge questions with correct answers

Lift acts in the direction of low pressure - Answer How does an airplane acheive lift? Left wing; clockwise Right wing; counterclockwise - Answer Describe the direction of wing tip vortices. All parts of the airplane that do not contribute to lift Sub components: 1) form drag: drag created by the shape of body 2) skin friction: tendency of air flowing over a body to cling to its surface - Answer What is parasite drag? What are the sub components of parasite drag? The parts of the aeroplane that are actively producing lift - Answer What is induced drag? The drag produced by the down going aileron. It is corrected with frise and differential ailerons. - Answer What is Aileron Drag? How is it corrected on some planes? Boundary layer: thin sheet of air lying over the surface of the wing