Aircraft Design Practice Test 8

1. An engine has gross thrust of 150KN. If mentioned designed condition needs to be met is that the ram drag should not exceed more than 18KN then, find the net thrust by engine.

2. Mass flow rate will be affected by __________

3. If elastic constant of material is 6.6MPa then, find the value of direct stress. Given direct strain is 0.25.

4. If my factor of safety is 2 and design load of my aircraft is 1000N then, at which value of ultimate load my aircraft can withstand without breaking?

5. Uninstalled engine data is available from __________

6. An object is subjected to some force. As a result of the force object undergoes in the deformation. If deformation of length is 0.28mm and Actual length is 20 mm then, find simple strain.

7. Which of the following is an example of air load?

8. The installed net propulsive force is defined as _________

9. When an aircraft flies in air, it experiences _________

10. Determine the required thrust coefficient to produce thrust of 1000N. Given diameter is 1.2m and n=22 rps.