MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Aircraft Performance knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The zero-lift drag force will decrease with decrease respect to altitude. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
The drag force is directly proportional to the dynamic pressure. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
How is the zero-lift drag force related to atmospheric pressure? |
| A. | The zero-lift drag force is directly proportional to atmospheric pressure |
| B. | The zero-lift drag force is indirectly proportional to atmospheric pressure |
| C. | The zero-lift drag force is twice multiple to atmospheric pressure |
| D. | The zero-lift drag force is half divided to atmospheric pressure |
| Answer» B. The zero-lift drag force is indirectly proportional to atmospheric pressure | |
| 4. |
The surface friction drag coefficient is not effected by reynold s number effect. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Surface friction drag corresponds to 35% of the lift independent drag whereas the profile drag leads to 65% of the lift independent drag. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Which of the following are the two types of lift independent drag? |
| A. | surface friction drag and profile drag |
| B. | induced drag and profile drag |
| C. | surface friction drag and induced drag |
| D. | parasitic drag and induced drag |
| Answer» B. induced drag and profile drag | |
| 7. |
There are three types of drag. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of the following is the correct relation between lift dependent drag, lift independent drag and drag coefficient? |
| A. | C<sub>D</sub>=C<sub>Dz</sub>+KC<sub>L</sub><sup>2</sup> |
| B. | C<sub>D</sub>=C<sub>Dz</sub>-KC<sub>L</sub><sup>2</sup> |
| C. | C<sub>D</sub>=C<sub>Dz</sub>*KC<sub>L</sub><sup>2</sup> |
| D. | C<sub>D</sub>=C<sub>Dz</sub>/KC<sub>L</sub><sup>2</sup> |
| Answer» B. C<sub>D</sub>=C<sub>Dz</sub>-KC<sub>L</sub><sup>2</sup> | |
| 9. |
In high subsonic mach number a value dependent wave drag is not induced. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Total drag is the sum of ______________ |
| A. | lift dependent drag and lift independent drag |
| B. | lift dependent drag, lift independent drag and volume dependent wave drag |
| C. | lift dependent drag and volume dependent wave drag |
| D. | volume dependent wave drag and lift independent drag |
| Answer» C. lift dependent drag and volume dependent wave drag | |