1. What is the primary purpose of an aircraft wing?
(A) To provide thrust
(B) To generate lift
(C) To reduce drag
(D) To stabilize the aircraft
2. Which principle explains how lift is generated on an airfoil?
(A) Newton’s First Law
(B) Bernoulli’s Principle
(C) Pascal’s Law
(D) Archimedes’ Principle
3. What type of drag is caused by the generation of lift?
(A) Parasitic drag
(B) Induced drag
(C) Form drag
(D) Skin friction drag
4. The angle between the chord line of an airfoil and the relative wind is called:
(A) Angle of incidence
(B) Angle of attack
(C) Pitch angle
(D) Yaw angle
5. Which force opposes the forward motion of an aircraft?
(A) Lift
(B) Thrust
(C) Drag
(D) Weight
6. Which of the following is NOT a component of total drag on an aircraft?
(A) Induced drag
(B) Parasite drag
(C) Wave drag
(D) Magnetic drag
7. The Reynolds number in aerodynamics is used to determine:
(A) Type of flow (laminar or turbulent)
(B) Lift coefficient
(C) Drag coefficient
(D) Mach number
8. What happens to the stall angle of attack when the aircraft speed increases?
(A) Increases
(B) Decreases
(C) Remains constant
(D) Becomes zero
9. Which parameter measures the compressibility effects of airflow around an aircraft?
(A) Reynolds number
(B) Mach number
(C) Lift coefficient
(D) Drag coefficient
10. Which type of flow occurs when the air moves smoothly in parallel layers over the wing surface?
(A) Turbulent flow
(B) Laminar flow
(C) Transitional flow
(D) Shock wave flow