Aero Exam 2 Verified Exam Questions and Answers Latest update
2026/2027
Question:
1. T/F: A discontinuity in *normal* velocity exists across a vortex sheet.
Answer:
False
Question:
2. T/F: A discontinuity in *tangential* velocity exists across a vortex sheet.
Answer:
True
Question:
3. T/F: If an airfoil in a potential flow experiences *positive* lift, the starting vortex trailing
downstream of the airfoil has a *clockwise* sense of rotation.
Answer:
False
Question:
4. T/F: If an airfoil in a potential flow experiences *positive* lift, the starting vortex trailing
downstream of the airfoil has a *counter-clockwise* sense of rotation.
Answer:
True
Question:
5. T/F: If an airfoil in a potential flow experiences *negative* lift, the starting vortex trailing
downstream of the airfoil has a *clockwise* sense of rotation.
Answer:
True
Question:
6. T/F: If an airfoil in a potential flow experiences *negative* lift, the starting vortex trailing
downstream of the airfoil has a *counter-clockwise* sense of rotation.
Answer:
False
, Question:
7. T/F: The fundamental equation of thin airfoil theory states that the *chord line* is a streamline of
the flow.
Answer:
False
Question:
8. T/F: The fundamental equation of thin airfoil theory states that the *mean camber line* is a
streamline of the flow.
Answer:
True
Question:
9. T/F: The fundamental equation of thin airfoil theory states that the *surface of the airfoil* is a
streamline of the flow.
Answer:
False
Question:
10.
According to thin airfoil theory, the pressure is lowest along the surface near the airfoils at positive
angles of attack.
Answer:
Upper, Leading Edge for symmetric
Question:
11. T/F: According to thin airfoil theory, the center of pres- True sure is always at the quarter chord for
*symmetric* airfoils.
Answer:
Question:
12. T/F: According to thin airfoil theory, the center of pres- False sure is always at the quarter chord
for *cambered* airfoils.
Answer:
2026/2027
Question:
1. T/F: A discontinuity in *normal* velocity exists across a vortex sheet.
Answer:
False
Question:
2. T/F: A discontinuity in *tangential* velocity exists across a vortex sheet.
Answer:
True
Question:
3. T/F: If an airfoil in a potential flow experiences *positive* lift, the starting vortex trailing
downstream of the airfoil has a *clockwise* sense of rotation.
Answer:
False
Question:
4. T/F: If an airfoil in a potential flow experiences *positive* lift, the starting vortex trailing
downstream of the airfoil has a *counter-clockwise* sense of rotation.
Answer:
True
Question:
5. T/F: If an airfoil in a potential flow experiences *negative* lift, the starting vortex trailing
downstream of the airfoil has a *clockwise* sense of rotation.
Answer:
True
Question:
6. T/F: If an airfoil in a potential flow experiences *negative* lift, the starting vortex trailing
downstream of the airfoil has a *counter-clockwise* sense of rotation.
Answer:
False
, Question:
7. T/F: The fundamental equation of thin airfoil theory states that the *chord line* is a streamline of
the flow.
Answer:
False
Question:
8. T/F: The fundamental equation of thin airfoil theory states that the *mean camber line* is a
streamline of the flow.
Answer:
True
Question:
9. T/F: The fundamental equation of thin airfoil theory states that the *surface of the airfoil* is a
streamline of the flow.
Answer:
False
Question:
10.
According to thin airfoil theory, the pressure is lowest along the surface near the airfoils at positive
angles of attack.
Answer:
Upper, Leading Edge for symmetric
Question:
11. T/F: According to thin airfoil theory, the center of pres- True sure is always at the quarter chord for
*symmetric* airfoils.
Answer:
Question:
12. T/F: According to thin airfoil theory, the center of pres- False sure is always at the quarter chord
for *cambered* airfoils.
Answer:
