Quiz: Trike Ground Lesson 2.1

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Question 1 of 9

1. Question
What is the difference between streamline and turbulent flow?
- A. Streamline is before air flow hits any object and turbulent is after.
- B. Streamline flow is any flow over a smooth object, turbulent flow is flow over an object that has rivets or other surface roughness.
- C. Streamline flow is smooth flow over an object and turbulent flow is random unpredictable flow behind an object based on its shape.
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Question 2 of 9

2. Question
What is Bernoulli’s principle of lift?
- A. Lift is produced from air moving over a surface and speeding up.
- B. Lift is produced from faster moving air producing a low pressure.
- C. Lift is produced from air moving over an airfoil and being pushed down creating the opposite reaction for the airfoil.
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Question 3 of 9

3. Question
What is Newton’s third law principle of lift?
- A. Lift is produced from air moving over a surface and speeding up.
- B. Lift is produced from faster moving air producing a low pressure.
- C. Lift is produced from air moving over and airfoil and being pushed down creating the opposite reaction for the airfoil.
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Question 4 of 9

4. Question
What is dynamic pressure versus static pressure?
- A. Static pressure is the pressure of the atmosphere and dynamic is pressure of the air as you fly into it.
- B. Static pressure is the pressure of the air when you are on the ground and dynamic pressure is the pressure when you are at altitude.
- C. No difference they are the same.
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Question 5 of 9

5. Question
What is airspeed?
- A. How fast you are moving over the ground.
- B. How fast you are moving through the air.
- C. How fast you are moving over the ground with wind.
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Question 6 of 9

6. Question
What is an airfoil?
- A. The profile shape when looking down at the aircraft wing.
- B. A cross section of the wing designed to produce streamline flow and lift for the wing.
- C. A shape that looks like a foil used for air to flow around it.
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Question 7 of 9

7. Question
The term “angle of attack” is defined as the angle?
- A. Between the wing chord line and the relative wind.
- B. Between the aircraft's climb angle and the horizon.
- C. Formed by the longitudinal axis of the aircraft and the chord line of the wing.
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Question 8 of 9

8. Question
The angle between the chord line of an airfoil and the relative wind is known as the angle of?
- A. Lift.
- B. Attack.
- C. Incidence.
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Question 9 of 9

9. Question
What is an important concept of the lift equation?
- A. It is an equation no one uses and is not really that important for learning to fly.
- B. It lets you know where the wing will stall based on the angle of attack.
- C. It shows how lift can increase dramatically with the increase in speed.
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Quiz: Trike Ground Lesson 2.1

Quiz: Trike Ground Lesson 2.1

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