MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Aircraft Design Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Find the drag at which thrust required is minimum. Consider CD0 as 0.015 and reference area is 5m2. Consider steady level flight with q of 15Pa. |
| A. | 2.25N |
| B. | 22.5N |
| C. | 225N |
| D. | 2250N |
| Answer» B. 22.5N | |
| 2. |
Find the velocity for minimum thrust required at steady level flight if wing loading is 75N/m2 and induced drag factor K is 0.0025. Consider CD0 as 0.02 and density as sea level. |
| A. | 6.45m/s |
| B. | 97m/s |
| C. | 120m/s |
| D. | 75m/s |
| Answer» B. 97m/s | |
| 3. |
Let’s consider our aircraft has to generate thrust of 150KN during cruise. If at the cruise thrust loading is 0.86 then, at which value of Lift our aircraft is flying? |
| A. | 174.4KN |
| B. | 450KN |
| C. | 100N |
| D. | 174N |
| Answer» B. 450KN | |
| 4. |
An aircraft is designed to be in steady level flight with weight of 1500N and CL of 1.0. Determine at which speed we need to design this aircraft so that it can achieve this requirement. Consider density as 1.2 kg/m3 and reference area as 2m2. |
| A. | 35.35m/s |
| B. | 56m/min |
| C. | 56m/s |
| D. | 70km/s |
| Answer» B. 56m/min | |
| 5. |
Following diagram represents ______________ |
| A. | drag polar |
| B. | weight polar |
| C. | thrust polar |
| D. | lift curve slope |
| Answer» B. weight polar | |