Questions and Answers 100% Pass
1. Aircraft movement about the longitudinal axis caused by the ailerons is best
described as movement caused by - ✔✔torque= radius* force
2. The amount of yawing moment that the rudder can generate is affected by which two
factors - ✔✔aerodynamic force/ distance from CG to the rudder
3. A 100lbs weight is dropped from a height. What is the Ep before it is dropped -
✔✔2,000'lbs
4. A 100lbs weight is dropped from a height of 20'. What is the Ek of this weight at the
moment of impact - ✔✔2,000'lbs
5. Which of the following best describes work - ✔✔a force is applied to an object that
does move some distance
6. At what height is experienced half the weight of the atmosphere - ✔✔18,000'
7. Weight is - ✔✔a force
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,8. According to Bernoulli, in a venturi, increases in speed (dynamic pressure) equals -
✔✔lower static pressure
9. Magnus effect describes - ✔✔why a ping pong ball curves with spin
10. Fowler flaps increase a wing's - ✔✔camber and surface area
11. The earth's atmosphere contains a near-constant amount of nitrogen, oxygen, and
other gases, but increases in density with an increase in altitude - ✔✔false
12. What two things in the lift equation can you control directly to affect lift while
maneuvering the aircraft - ✔✔coefficient of lift and velocity
1. Label wing - ✔✔Chord line, Mean camber line, Relative wind, Leading edge, Trailing
edge
2. What is the difference between an airfoil section and the wings plan form - ✔✔Airfoil
section is side view and wings plan form is top view
3. What is the difference between mean camber line and chord line - ✔✔The difference
between mean camber line and chord line is that the mean camber line is directly in the
middle of the upper and lower parts of the wing. It is the average between the two
parts. It splits them directly in half. The chord line is the angle at which the wing faces
the relative wind, and is not necessarily in the direct middle of the wing.
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, 4. What are two characteristics of a laminar flow boundary layer - ✔✔Smooth and
together, and holds to the surface longer, smooth regular streamlines, fluid particles do
not intermingle, thin
5. Calculate the PE of an archer weighting 2500lb if is at an altitude of 0.5' above the
ground - ✔✔1250
6. What is the law of conservation of energy - ✔✔The law of conservation of energy
states that energy can not be created or discarded. It can only change forms.
7. The amount of yawing moment that the rudder can generate is affected by which two
factors - ✔✔Aerodynamic force/ distance from CG to rudder
8. A 100lb weight is dropped from a height of 20' , what is EP - ✔✔2000
9. What is the KE of this same energy at the moment of impact - ✔✔2000
10. An airfoil is staid to be stalled when you - ✔✔Exceed the cAOA
11. In order to increase the CL that a wing can produce, high lift devices - ✔✔Any of
these: Increase camber, increase surface area, increase energy in the boundary layer
12. AOA is measured between the - ✔✔Chord line and relative wind
13. Vortex generators increase the lift by - ✔✔Adding KE to the boundary layer
14. An increase in temp affects the air density by - ✔✔Decreasing the density
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