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This section includes 12 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 A/C is flying with thrust loading at take-off is 0.9. If thrust at take-off and cruse is equal then, determine the thrust loading during cruise. |
| A. | 0.941 |
| B. | 0.951 |
| C. | 0.961 |
| D. | 0.98 |
| Answer» B. 0.951 | |
| 2. |
An A/C is cruising with thrust to weight of 0.9. If A/C is powered by prop engine then, find maximum lift to drag? |
| A. | 1.11 |
| B. | 2.11 |
| C. | 3.12 |
| D. | 4.221 |
| Answer» B. 2.11 | |
| 3. |
A twin turbo prop is flying with power loading of 12. What will be the maximum velocity? |
| A. | 48.225 mph |
| B. | 48.225 m/s |
| C. | 48.225 km/h |
| D. | 225.48 m/h |
| Answer» B. 48.225 m/s | |
| 4. |
If weight of an aircraft is increased then, thrust loading will _______ |
| A. | increase |
| B. | decrease |
| C. | will not change |
| D. | exact half always |
| Answer» C. will not change | |
| 5. |
Consider thrust is given as 120 N of force then, find the value of thrust in terms of pound of force. |
| A. | 26.97 pound of force |
| B. | 125 pound |
| C. | 12.56 lb |
| D. | 120 KN |
| Answer» B. 125 pound | |
| 6. |
Power available for prop will vary with density. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
A jet aircraft has maximum lift to drag as 12. Find the value of the thrust loading at the cruise. |
| A. | 0.096 |
| B. | 0.0069 |
| C. | 0.96 |
| D. | 0.0096 |
| Answer» B. 0.0069 | |
| 8. |
A typical jet airliner has cruise thrust to weight ratio of 0.5. Determine at which aerodynamic efficiency this airliner is flying. |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 9. |
For an aircraft cruise aerodynamic efficiency is 10. Find the thrust loading at cruise. |
| A. | 0.1 |
| B. | 0.01 |
| C. | 0.4 |
| D. | 0.5 |
| Answer» B. 0.01 | |
| 10. |
At idle cruise condition, thrust loading is equal to ______ |
| A. | drag to lift ratio at cruise |
| B. | drag to power ratio |
| C. | lift to drag ratio |
| D. | aerodynamic efficiency |
| Answer» B. drag to power ratio | |
| 11. |
What is thrust matching? |
| A. | Comparison of the engine s available thrust at cruise to the estimated drag of aircraft |
| B. | Comparison of the engine s available thrust at cruise to the estimated weight of aircraft |
| C. | Comparison of the engine s available lift at cruise to the estimated drag of aircraft |
| D. | Comparison of the engine s available power at cruise to the estimated drag of aircraft |
| Answer» B. Comparison of the engine s available thrust at cruise to the estimated weight of aircraft | |
| 12. |
Thrust loading is defined as ____________ |
| A. | ratio of thrust produced by an engine to the weight of the aircraft |
| B. | ratio of lift to thrust |
| C. | ratio of drag to thrust |
| D. | ratio of lift to weight |
| Answer» B. ratio of lift to thrust | |