MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
A prop-driven aircraft is cruising with 90% propeller efficiency. If, range of aircraft is 7*106 ft, C=1.38*10-7 s-1 and L/D = 14 then what will be the fuel weight fraction for the cruise? |
| A. | 0.9216 |
| B. | 0.9261 |
| C. | 0.9289 |
| D. | 0.9365 |
| Answer» C. 0.9289 | |
| 2. |
Fuel consumption during cruise is affected by wetted area. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
If all the other factors remain unchanged and only aerodynamic efficiency of the aircraft is doubled then, what will be the cruise segment fuel weight fraction? |
| A. | Will increase |
| B. | Will decrease |
| C. | Will remain same |
| D. | Will be independent of aerodynamic efficiency |
| Answer» B. Will decrease | |
| 4. |
How will you determine climb mission weight fraction? |
| A. | Climb Endurance |
| B. | Loiter |
| C. | Always constant |
| D. | Cruise Speed |
| Answer» B. Loiter | |
| 5. |
What will be the weight fraction of the aircraft at final mission segment w.r.t. W0? |
| A. | Multiplication of individual weight fraction |
| B. | Division of individual weight fraction |
| C. | Addition of individual weight fraction |
| D. | Subtraction of individual weight fraction |
| Answer» B. Division of individual weight fraction | |
| 6. |
What will be the total fuel weight fraction for x-number of mission phases? |
| A. | W<sub>f</sub> / W<sub>0</sub> = 1 (W<sub>x</sub> / W<sub>0</sub>) |
| B. | W<sub>f</sub> / W<sub>0</sub> = 1 + (W<sub>x</sub> / W<sub>0</sub>) |
| C. | W<sub>f</sub> / W<sub>0</sub> = 1 / (W<sub>x</sub> / W<sub>0</sub>) |
| D. | W<sub>f</sub> / W<sub>0</sub> = 1 + (W<sub>x</sub> / W<sub>0</sub>) |
| Answer» B. W<sub>f</sub> / W<sub>0</sub> = 1 + (W<sub>x</sub> / W<sub>0</sub>) | |
| 7. |
A jet aircraft is cruising at 12000ft. What will be the cruise leg (mission phase n ) weight fraction? |
| A. | Wn/Wn-1 = (e^{ left(- frac{R*C}{V* frac{L}{D}} right)} ) |
| B. | Wn/Wn+1 = (e^{ left(- frac{R*C}{V* frac{L}{D}} right)} ) |
| C. | Wn/Wn-2 = (e^{ left(- frac{R*C}{V* frac{L}{D}} right)} ) |
| D. | Wn/Wn-1 = (e^{ left(- frac{R*C}{V* frac{L}{D}} right)} ) |
| Answer» B. Wn/Wn+1 = (e^{ left(- frac{R*C}{V* frac{L}{D}} right)} ) | |
| 8. |
Choose appropriate option for cruise mission leg weight fraction. |
| A. | Breguet endurance formula |
| B. | Breguet range formula |
| C. | Cruise invert method |
| D. | Breguet approximation |
| Answer» C. Cruise invert method | |
| 9. |
An Aircraft has gross weight of 10000lb. At the end of the mission segment it has weight fraction as 0.985. Determine fuel consumed for this mission. |
| A. | 150lb |
| B. | 150kg |
| C. | 60kg |
| D. | 60lb |
| Answer» B. 150kg | |
| 10. |
Which of the following is part of the fuel-fraction method? |
| A. | Developing lofting |
| B. | Empty weight fraction |
| C. | Calculating individual mission segment weight fraction |
| D. | Finding volume ratio |
| Answer» D. Finding volume ratio | |
| 11. |
For given mission leg n , mission leg weight fraction is _____ |
| A. | Wn / Wn-1 |
| B. | Wn / Wn-2 |
| C. | Wn-1 / Wn+1 |
| D. | Wn / Wn+1 |
| Answer» B. Wn / Wn-2 | |