Self-Evaluation: Airfoil

NACA Airfoil Series - MCQ Quiz

1. Which NACA series defines camber, position, and thickness (e.g., NACA 2412)?

NACA 4-Digit NACA 5-Digit NACA 6-Series None of the above

2. Which NACA series is a modification of the 4-digit with improved lift characteristics?

NACA 4-Digit NACA 5-Digit NACA 6-Series None of the above

3. Which NACA series is designed for laminar flow over part of the chord?

NACA 4-Digit NACA 5-Digit NACA 6-Series None of the above

4. In a NACA 4-digit airfoil, the first digit represents:

Maximum camber (%) Maximum thickness (%) Position of maximum camber None of the above

5. In a NACA 4-digit airfoil, the second digit represents:

Maximum camber (%) Position of maximum camber (tenths of chord) Maximum thickness (%) None of the above

6. In a NACA 4-digit airfoil, the last two digits represent:

Maximum camber (%) Position of maximum camber Maximum thickness (% of chord) None of the above

7. Which NACA series introduced the idea of controlling pressure distribution for laminar flow?

NACA 4-Digit NACA 5-Digit NACA 6-Series None of the above

8. Which NACA series often has designations like 23012?

NACA 4-Digit NACA 5-Digit NACA 6-Series None of the above

9. Which series was developed later for better laminar flow?

NACA 4-Digit NACA 5-Digit NACA 6-Series None of the above

10. The 6-series airfoils were designed primarily to:

Reduce drag through laminar flow Increase maximum lift Delay stall at high angles None of the above