MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Aircraft Design knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Stick fixed neutral point is defined at 40% of chord. Choose appropriate location of Stick free neutral point. |
| A. | 0.39 |
| B. | 0.8 |
| C. | 0.65 |
| D. | 0.5 |
| Answer» B. 0.8 | |
| 2. |
Find the value of CHδe if tail angle of attack is 3 deg and CHɑt is -0.004. Consider elevator floats up by 2 degree. |
| A. | -0.006 |
| B. | -7 |
| C. | 1.223 |
| D. | 1.225 |
| Answer» B. -7 | |
| 3. |
Determine the value of tail angle of attack if, elevator floats down by 1.8 degree. Consider CHδe as 0.003 and CHɑt as -0.006. |
| A. | 0.9 |
| B. | 2.5 |
| C. | 3.4 |
| D. | 1.8 |
| Answer» B. 2.5 | |
| 4. |
Find the degree of elevator float. Consider tail AOA is 2° and CHδe= -0.005, CHɑt=-0.0052. |
| A. | 2.08 deg |
| B. | 4 |
| C. | 12 |
| D. | 2.119 |
| Answer» B. 4 | |
| 5. |
Negative stick force gradient is used to provide ___________ |
| A. | speed stability |
| B. | thrust |
| C. | propulsive force |
| D. | gliding ratio |
| Answer» B. thrust | |
| 6. |
Hinge moment coefficient depends upon ________ |
| A. | Tail AOA, elevator deflection, etc |
| B. | Only tail angle |
| C. | Only wing angle |
| D. | Lift to drag ratio of fuselage |
| Answer» B. Only tail angle | |
| 7. |
Which of the following is correct for hinge moment? |
| A. | Hinge moment coefficient is function of tail angle of attack |
| B. | Hinge moment is not dependent on the tail angle |
| C. | Downwash is used to reduces angle of attack at tail |
| D. | Lifting property of the airfoil is same as a sphere |
| Answer» B. Hinge moment is not dependent on the tail angle | |
| 8. |
Stick force is function of ___________ |
| A. | hinge moment |
| B. | lofting |
| C. | fuel air ratio |
| D. | pressure ratio of inlet |
| Answer» B. lofting | |
| 9. |
Stick fixed and stick free are similar. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Stick free stability permits ____________ |
| A. | elevator to float |
| B. | elevator to be fixed |
| C. | fixed rigid body |
| D. | lift and drag ratio |
| Answer» B. elevator to be fixed | |