Correct Answer:
The tendency of an aircraft in flight to rotate on a horizontal plane
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2. What are two other terms for YAW?
Answer
Correct Answer:
Pitch and Roll
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3. Viscosity is the internal friction in a fluid that makes it what?
Answer
Correct Answer:
Resistant to flow
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4. In a fluid, the Viscosity makes it resistant to what?
Answer
Correct Answer:
Flow
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5. What is the opposite of a TURBULENT flow?
Answer
Correct Answer:
Laminar flow
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6. What term describes a highly irregular form of flow?
Answer
Correct Answer:
Turbulent
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7. What does an airfoil need to do in order for the leading edge to hit the Stagnation Point?
Answer
Correct Answer:
Flow
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8. What is the name of the spot where airflow hits an airfoil
Answer
Correct Answer:
STAGNATION POINT
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9. What does the acronym ROLL mean?
Answer
Correct Answer:
The tendency of an aircraft in flight to rotate vertically on the axis of its fuselage
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10. What is the tendency of an aircraft in flight to do?
Answer
Correct Answer:
Rotate vertically
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11. What is the name of the tendency of an aircraft in flight to rotate vertically on the axis of its fuselage?
Answer
Correct Answer:
ROLL
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12. What does lift help an airplane fly?
Answer
Correct Answer:
Aloft
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13. What is the aerodynamic force that keeps an aircraft aloft?
Answer
Correct Answer:
Lift
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14. What is the opposite of Laminar flow?
Answer
Correct Answer:
Turbulent flow
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15. What term describes a streamlined flow?
Answer
Correct Answer:
LAMINAR
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16. What does the term DRAG mean?
Answer
Correct Answer:
The force that opposes the forward motion of an object in airflow
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17. What is the force that opposes the forward motion of an object in airflow?
Answer
Correct Answer:
DRAG
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18. What is a CHORD LINE?
Answer
Correct Answer:
The distance, along an imaginary straight line
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19. What is the distance along an imaginary straight line from the stagnation point of an airfoil to the trailing edge?
Answer
Correct Answer:
CHORD LINE
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20. When is the enhanced curvature of an airfoil known as CAMBER?
Answer
Correct Answer:
The enhanced curvature on the upper surface of an airfoil
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21. What part of an airfoil has an increase in curvature?
Answer
Correct Answer:
Upper surface
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22. What is the name of the airfoil enhancement?
Answer
Correct Answer:
CAMBER
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23. Who did Bernoulli think had the principle?
Answer
Correct Answer:
Slower-moving fluid
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24. WHO WAS DANIEL BERNOULLI?
Answer
Correct Answer:
Swiss mathematician and physicist
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25. Who is credited with Bernoulli
Answer
Correct Answer:
Daniel Bernoulli
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26. WHICH OF THE FOLLOWING IS THE ANGLE OF ATTACK?
Answer
Correct Answer:
The orientation of the airfoil
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27. What part of an airplane
Answer
Correct Answer:
Response to airflow
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28. What is the name of the design of an airplane
Answer
Correct Answer:
AIRFOIL
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29. What is the definition of applied aerodynamics?
Answer
Correct Answer:
The science of improving man-made objects
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30. What is the goal of applied aerodynamics?
Answer
Correct Answer:
Improving man-made objects
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31. What is the title of the science of improving man-made objects based on?
Answer
Correct Answer:
Applied aerodynamics
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32. What do the letters YAW stand for?
Answer
Correct Answer:
Yaw A rotational motion in which the aircraft turns around its vertical axis
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33. What is the motion an aircraft makes when it yaws?
Answer
Correct Answer:
A rotational motion
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34. What kind of control did flexible wing tips provide?
Answer
Correct Answer:
Lateral
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35. What allowed the flexible wing tips to arch?
Answer
Correct Answer:
Wires
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36. What is the purpose of a airplane
Answer
Correct Answer:
Provide lift
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37. What are the four basic types of wings?
Answer
Correct Answer:
Straight, sweep, delta and variable sweep
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38. What type of model could be used in a wind tunnel?
Answer
Correct Answer:
Airplane
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39. The model is held in place by what?
Answer
Correct Answer:
Struts
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40. What is a product of aeronautics that involves placing a model of an aircraft or part of an aircraft into a wind tunnel?
Answer
Correct Answer:
Wind tunnel testing
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41. What is the gravitational force that acts on an aircraft?
Answer
Correct Answer:
Weight
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42. In what direction does the weight force an aircraft to move?
Answer
Correct Answer:
Toward the Earth
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43. What does the vertical stabilizer help to increase?
Answer
Correct Answer:
Stability of the aircraft
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44. What part of the plane helps to increase its stability?
Answer
Correct Answer:
Vertical stabilizer
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45. What is perpendicular to the longitudinal and lateral axes?
Answer
Correct Answer:
The vertical axis
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46. In what direction is the vertical axis of the earth?
Answer
Correct Answer:
Perpendicular to
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47. What is the basic unit of velocity?
Answer
Correct Answer:
The speed of an object
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48. What is the speed of an object in a certain direction?
Answer
Correct Answer:
Velocity
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49. Where does the undercarriage provide support?
Answer
Correct Answer:
The ground
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50. What does the term undercarriage normally refer to?
Answer
Correct Answer:
Rubber tires
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51. What part of an aircraft provides support while the aircraft is on the ground?
Answer
Correct Answer:
Undercarriage
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52. What is the term for landing on water?
Answer
Correct Answer:
Floats
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53. What does the term "turbulence" mean in this context?
Answer
Correct Answer:
Air flow which is not smooth and steady
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54. An airplane can unexpectedly rise, drop, roll, pitch or yaw very abruptly when it flies through what?
Answer
Correct Answer:
Turbulent air
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55. What does the term subsonic mean?
Answer
Correct Answer:
Velocity between nine tenths (.9) and one and four tenths (1.4) times the speed of sound
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56. What is the range in speed of sound that is called the transonic range?
Answer
Correct Answer:
Between nine tenths (.9) and one and four tenths (1.4) times the speed of sound
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57. Along what axis is translational motion?
Answer
Correct Answer:
A straight line
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58. What is the name of the type of motion?
Answer
Correct Answer:
Translational motion
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59. What is translational motion?
Answer
Correct Answer:
Motion along a straight line
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60. What is normally thin and sharp?
Answer
Correct Answer:
The trailing edge
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61. What feature is normally present on the trailing edge of a delta wing?
Answer
Correct Answer:
Thin and sharp
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62. What kind of devices are used in aeronautics?
Answer
Correct Answer:
Special
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63. What do the tools of aeronautics use?
Answer
Correct Answer:
Special devices
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64. What do the engines create?
Answer
Correct Answer:
Thrust
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65. What does the engines create thrust for?
Answer
Correct Answer:
Through the air
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66. What must a test pilot be able to do?
Answer
Correct Answer:
Accurately write and speak about what they see, feel and hear
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67. What do test pilots have to be able to write and speak about?
Answer
Correct Answer:
What they see, feel and hear during the testing of an aircraft
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68. Pilots who test aircraft must have a complete understanding of what two subjects?
Answer
Correct Answer:
Aeronautics and aerodynamics
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69. What type of thrust are used to start an airplane
Answer
Correct Answer:
The thrust of the engines
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70. How do engines generate lift to start an airplane flying?
Answer
Correct Answer:
Takeoff
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71. What is another name for sweepback wing?
Answer
Correct Answer:
Slanted toward the rear of the airplane
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72. What kind of wings have the F-18?
Answer
Correct Answer:
Sweepback
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73. What is the name of the type of wing that is slanted toward the back of an airplane?
Answer
Correct Answer:
Sweepback wing
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74. How many hours would it take a supersonic aircraft to fly from New York to London?
Answer
Correct Answer:
Less than two
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75. How long does it take a supersonic jet to fly from New York to London?
Answer
Correct Answer:
Less than two hours
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76. What is an example of a supercomputer that is resident at NASA Ames Research Center and is used for CFD?
Answer
Correct Answer:
Cray Y-MP
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77. Where is the Cray Y-MP located?
Answer
Correct Answer:
NASA Ames Research Center
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78. What is an example of a subsonic aircraft?
Answer
Correct Answer:
MD-11
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79. What is the object that must be streamlined in order to move through the air easily?
Answer
Correct Answer:
To shape an object so that it creates less drag and moves smoothly and easily through the air
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80. What kind of wing is a straight wing?
Answer
Correct Answer:
A wing that sticks straight out from the fuselage
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81. What does the airflow over a wing produce when it is not stalling?
Answer
Correct Answer:
More lift
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82. What happens when an airplane stalls?
Answer
Correct Answer:
It will usually drop suddenly
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83. What type of substances help food stay fresh?
Answer
Correct Answer:
Stabilizers
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84. What do stabilizers do to arrows?
Answer
Correct Answer:
Keep the arrow pointed in the right direction
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85. Stability is the property of a body that causes it when disturbed from a condition of what to develop forces or moments that restore the original condition?
Answer
Correct Answer:
Equilibrium or steady motion
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86. What property causes a body to return to its original condition after it is disturbed?
Answer
Correct Answer:
Stability
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87. What is stability?
Answer
Correct Answer:
The condition of being steady.
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88. What do pilots use to eliminate lift from their airplanes?
Answer
Correct Answer:
Spoilers
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89. Where are spoilers normally located?
Answer
Correct Answer:
On the top of the wing
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90. What is the speed at which sound waves travel?
Answer
Correct Answer:
The speed of sound
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91. What is the speed of sound?
Answer
Correct Answer:
The speed at which sound waves travel
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92. What is a skids?
Answer
Correct Answer:
A sled-like runner used as part of the landing gear for an aircraft
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93. What is an example of a simulator?
Answer
Correct Answer:
Flight simulators
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94. What is the device that creates an environment that is as close as possible to reality?
Answer
Correct Answer:
Simulator
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95. What is the name of the control surface on the vertical part of the tail?
Answer
Correct Answer:
Rudder
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96. How is the rudder controlled?
Answer
Correct Answer:
By rudder pedals
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97. Which of the three rotational motions of an airplane is it around the axis of?
Answer
Correct Answer:
Pitch
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98. Pitch, roll and yaw are the rotational motions of what?
Answer
Correct Answer:
An airplane around the lateral, longitudinal and vertical axes
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99. Pitch, roll and what are the rotational motions of an airplane around the axes?
Answer
Correct Answer:
Yaw
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100. How are regimes of flight different from other types of classification?
Answer
Correct Answer:
Based on their speeds
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