MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
What is the value of specific endurance where the lift to drag ratio is 10, weight is 50000N, efficiency is 85% , velocity is 250m/s and specific fuel consumption is 7.43 kg/kW-hr? |
| A. | 30hr |
| B. | 57.6hr |
| C. | 10hr |
| D. | 50hr |
| Answer» C. 10hr | |
| 2. |
What is the value of specific air range where the lift to drag ratio is 10, weight is 50000N, efficiency is 85% and specific fuel consumption is 7.43 kg/kW-hr? |
| A. | 3000km |
| B. | 4000 km |
| C. | 1000km |
| D. | 5000km |
| Answer» C. 1000km | |
| 3. |
Which of the following is the correct formula for specific endurance? |
| A. | SE= ( frac{V}{C} frac{L}{D} frac{1}{W} ) |
| B. | SE= ( frac{V}{PC} ) |
| C. | SE= ( frac{ eta}{C} frac{L}{D} frac{1}{W} ) |
| D. | SE= ( frac{ eta}{CV} frac{L}{D} frac{1}{W} ) |
| Answer» E. | |
| 4. |
Which of the following is the correct formula for specific air range? |
| A. | SAR= ( frac{ eta}{C} frac{L}{D} frac{1}{W} ) |
| B. | SAR= ( frac{1}{PC} ) |
| C. | SAR= ( frac{ eta W}{C} frac{L}{D} ) |
| D. | SAR= ( frac{1}{C} frac{L}{D} frac{1}{W} ) |
| Answer» B. SAR= ( frac{1}{PC} ) | |
| 5. |
What is the relation between specific air range and specific enurance? |
| A. | SAR=V*SE |
| B. | SAR= ( frac{V}{SE} ) |
| C. | SE=V*SAR |
| D. | SE= ( frac{V}{SAR} ) |
| Answer» B. SAR= ( frac{V}{SE} ) | |
| 6. |
Specific endurance is maximum when the aircraft is flying at minimum drag speed. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Specific air range is maximum when the aircraft is flying at minimum drag speed. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
What is the value of specific fuel consumption where the fuel heating is 42,800kJ/kg and power produced is 5760 kW-hr? |
| A. | 0.135 kg/kW-hr |
| B. | 7.43 kg/W-hr |
| C. | 1.546 kg/kW-hr |
| D. | 7.43 kg/kW-hr |
| Answer» E. | |
| 9. |
Which of the following is the correct formula for specific fuel consumption? |
| A. | Q<sub>f</sub>= ( frac{P}{C} ) |
| B. | Q<sub>f</sub>= ( frac{C}{P} ) |
| C. | C= ( frac{P}{Q_f} ) |
| D. | C= ( frac{Q_f}{P} ) |
| Answer» E. | |
| 10. |
What is the unit of specific fuel consumption? |
| A. | kg/kW-sec |
| B. | kg/W-hr |
| C. | kg/hr |
| D. | kg/kW-hr |
| Answer» E. | |
| 11. |
Which of the following is the correct performance equation for power-producing engines? |
| A. | V=PD |
| B. | D=PV |
| C. | P=VD |
| D. | V= PD |
| Answer» D. V= PD | |