Airfoil shapes and their effects on flight MCQs – Aerospace

1. The primary function of an airfoil is to generate:
(A) Drag
(B) Lift
(C) Thrust
(D) Weight

2. A cambered airfoil generates lift at:
(A) Zero angle of attack
(B) Negative angle of attack
(C) High angle of attack only
(D) No angle of attack

3. Increasing the angle of attack beyond the critical angle results in:
(A) Increased lift
(B) Decreased drag
(C) Stall
(D) Improved efficiency

4. A symmetrical airfoil produces lift primarily by:
(A) Airfoil camber
(B) Angle of attack
(C) Shape asymmetry
(D) Boundary layer separation

5. The thickest part of an airfoil is typically found at:
(A) The leading edge
(B) The trailing edge
(C) The maximum camber point
(D) The quarter chord length

6. A high aspect ratio wing is most effective for:
(A) Reducing drag
(B) Increasing maneuverability
(C) High-speed flight
(D) Vertical takeoff

7. The trailing edge of an airfoil primarily affects:
(A) Lift generation
(B) Pressure distribution
(C) Control surface effectiveness
(D) Wave drag

8. A supercritical airfoil is designed to:
(A) Reduce transonic wave drag
(B) Increase subsonic performance
(C) Improve supersonic maneuverability
(D) Enhance structural strength

9. The Reynolds number of an airfoil determines:
(A) The transition between laminar and turbulent flow
(B) The maximum lift coefficient
(C) The structural strength
(D) The stall speed

10. Winglets at the tips of an airfoil help reduce:
(A) Form drag
(B) Induced drag
(C) Pressure drag
(D) Wave drag