MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Aerodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Why NACA 0012 airfoil is said to be symmetric airfoil? |
| A. | Because of no camber |
| B. | Because of camber |
| C. | Because of no thickness |
| D. | Because of chord line |
| Answer» B. Because of camber | |
| 2. |
What is the thickness in NACA 747A315 airfoil? |
| A. | 15% |
| B. | 25% |
| C. | 30% |
| D. | 7% |
| Answer» B. 25% | |
| 3. |
What parameter is used to decrease the stall speed? |
| A. | Chord |
| B. | Chord line |
| C. | Camber |
| D. | Camber line |
| Answer» D. Camber line | |
| 4. |
WHAT_PARAMETER_IS_USED_TO_DECREASE_THE_STALL_SPEED??$ |
| A. | Chord |
| B. | Chord line |
| C. | Camber |
| D. | Camber line |
| Answer» D. Camber line | |
| 5. |
Why NACA 0012 airfoil is said to be symmetric airfoil?$ |
| A. | Because of no camber |
| B. | Because of camber |
| C. | Because of no thickness |
| D. | Because of chord line |
| Answer» B. Because of camber | |
| 6. |
What_is_the_thickness_in_NACA_747A315_airfoil?$ |
| A. | 15% |
| B. | 25% |
| C. | 30% |
| D. | 7% |
| Answer» B. 25% | |
| 7. |
What is the thickness in NACA 2412 airfoil? |
| A. | 12% |
| B. | 24% |
| C. | 41% |
| D. | 2% |
| Answer» B. 24% | |
| 8. |
What is the shape of the airfoil at the leading edge? |
| A. | Semi-circular |
| B. | Curve |
| C. | Straight |
| D. | Circular |
| Answer» E. | |
| 9. |
What is the purpose of trailing edge? |
| A. | Airflow rejoins |
| B. | Airflow separated |
| C. | Vortex are created |
| D. | Stalling will created |
| Answer» B. Airflow separated | |
| 10. |
Purpose of leading edge is to ______________ |
| A. | allow the wing to operate at high angle of attack |
| B. | allow the wing to operate at low angle of attack |
| C. | allow the wing to operate at stall condition |
| D. | allow the wing to operate in level condition |
| Answer» B. allow the wing to operate at low angle of attack | |
| 11. |
What is a chord? |
| A. | Distance between leading edge and chord |
| B. | Distance between chord and chamber |
| C. | Distance between leading edge and trailing edge |
| D. | Distance between trailing edge and chord |
| Answer» D. Distance between trailing edge and chord | |
| 12. |
Is shape of the airfoil depends on thickness? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
Purpose of camber in an airfoil is ____________ |
| A. | to increase maximum drag |
| B. | to increase maximum lift |
| C. | to decrease maximum lift |
| D. | to decrease maximum drag |
| Answer» C. to decrease maximum lift | |
| 14. |
Who designed the nomenclature of airfoil? |
| A. | NACA series |
| B. | EULAR series |
| C. | EPPLER series |
| D. | CLARK series |
| Answer» B. EULAR series | |