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. |
An aircraft has lift to drag ratio during cruise as 2.5 and load factor as 1.2. Which value of thrust loading should be selected? |
| A. | 0.48 |
| B. | 0.58 |
| C. | 0.38 |
| D. | 0.28 |
| Answer» B. 0.58 | |
| 2. |
An aircraft is to be designed to have max lift coefficient as 2.8 and at q=10Pa. If maximum load factor n=5 then, what will be the stall speed? |
| A. | 1.80m/s |
| B. | 1.80mph |
| C. | 2.80mph |
| D. | 2.80m/s |
| Answer» B. 1.80mph | |
| 3. |
After estimating thrust and wing loading, we can proceed to the initial sizing. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
For jet aircraft, thrust loading is greater than the climb gradient. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
If climb gradient is G, then which of the following is correct? |
| A. | T/W G + 2* ( sqrt{ frac{CD0}{ *e*AR}} ) |
| B. | T/W G + 4* ( sqrt{ frac{CD0}{ *e*AR}} ) |
| C. | T/W G 2* ( sqrt{ frac{CD0}{ *e*AR}} ) |
| D. | T/W G 4* ( sqrt{ frac{CD0}{ *e*AR}} ) |
| Answer» B. T/W G + 4* ( sqrt{ frac{CD0}{ *e*AR}} ) | |
| 6. |
A designer is designing an aircraft which has climb gradient of 1.5 and has drag of 20N. If it weighs 220kg then, determine thrust to weight ratio? |
| A. | 0.097 |
| B. | 0.87 |
| C. | 20 |
| D. | 220 |
| Answer» B. 0.87 | |
| 7. |
What should be the load factor if, lift coefficient is designed as 2.1 and aircraft is operating at dynamic pressure q as 20 Pa. Given W/s =12. |
| A. | 3.5 |
| B. | 5.5 |
| C. | 3.25 |
| D. | 4.5 |
| Answer» B. 5.5 | |
| 8. |
What should be the aspect ratio (AR) of the prop aircraft if it is designed to work with maximum loiter wing loading of 32, CD0 = 0.06, dynamic pressure of 20 unit and Oswald efficiency as 0.6. |
| A. | 7.54 |
| B. | 8.54 |
| C. | 7.65 |
| D. | 9.65 |
| Answer» B. 8.54 | |
| 9. |
For estimated value of the thrust loading, we got three different values of wing loading. As a designer typically which wing loading should be considered? |
| A. | Lowest among all three |
| B. | Highest among all three |
| C. | Any value |
| D. | Always take average |
| Answer» B. Highest among all three | |
| 10. |
Low wing loading increases __________ |
| A. | weight and cost of aircraft |
| B. | weight only |
| C. | lofting |
| D. | drafting |
| Answer» B. weight only | |