AVIT 323 Final Exam Questions and
Answers11
If an airplane has positive static stability around one axis, which of the following dynamic
conditions may exist - ANSWERS -Any of these
Dihedral improves which type of static stability - ANSWERS -Lateral
The horizontal stabilizer is primarily used to increase which type of static stability - ANSWERS -
Longitudinal
When an airplane is trimmed around the lateral axis it is trimmed to a specific - ANSWERS -
Airspedd
Wing sweep increases - ANSWERS -Both of these
In a trimmed and directionally stable airplane, what happens after a yaw or side slip action
occurs but no other inputs are made - ANSWERS -The nose will try to point into the relative
wind
Roll that is due to yaw is caused by? - ANSWERS -Speed differential of the wings
Dutch roll is - ANSWERS -A coupling of lateral and directional oscillations
Of these, what is most likely the cause of an unintentional spin - ANSWERS -Skidding
uncoordinated turns
, What type of stall is indicated in the stall area of a Vg diagram? - ANSWERS -Accelerated
What's the difference between an airfoil section and a wings platform? - ANSWERS -An airfoil
section is a side-view of the wing, amd the wing's planform is a top down view
What is the difference between mean camber line and the chord line? - ANSWERS -Mean
camber: Divides an airfoil section in half between then upper and lower cambers
Chord line: A straight line from the leading edge to the trailing edge
What are the two characteristics of a laminar flow boundary layer? - ANSWERS -- Good for high
speeds
- Leaves the wing surface at low speeds
Calculate the potential energy of an Archer weighing 2,500lbs if it is 0.5ft above the ground -
ANSWERS -1250lbs
Law of Conservation of Energy - ANSWERS -Energy cannot be created or destroyed
The amount of yawing moment that the rudder can generate is affected by which two factors? -
ANSWERS -Aerodynamic force / Distance from C.G. to rudder
A 100lb. weight is dropped from a height of 20ft. What is the Ep before it is dropped? -
ANSWERS -2,000ft/lbs
What is the KE of the same weight at the moment of impact after falling 20 feet? - ANSWERS -
2,000ft/lbs
In order to increase CL, high lift devices... - ANSWERS -Any of these answers
Answers11
If an airplane has positive static stability around one axis, which of the following dynamic
conditions may exist - ANSWERS -Any of these
Dihedral improves which type of static stability - ANSWERS -Lateral
The horizontal stabilizer is primarily used to increase which type of static stability - ANSWERS -
Longitudinal
When an airplane is trimmed around the lateral axis it is trimmed to a specific - ANSWERS -
Airspedd
Wing sweep increases - ANSWERS -Both of these
In a trimmed and directionally stable airplane, what happens after a yaw or side slip action
occurs but no other inputs are made - ANSWERS -The nose will try to point into the relative
wind
Roll that is due to yaw is caused by? - ANSWERS -Speed differential of the wings
Dutch roll is - ANSWERS -A coupling of lateral and directional oscillations
Of these, what is most likely the cause of an unintentional spin - ANSWERS -Skidding
uncoordinated turns
, What type of stall is indicated in the stall area of a Vg diagram? - ANSWERS -Accelerated
What's the difference between an airfoil section and a wings platform? - ANSWERS -An airfoil
section is a side-view of the wing, amd the wing's planform is a top down view
What is the difference between mean camber line and the chord line? - ANSWERS -Mean
camber: Divides an airfoil section in half between then upper and lower cambers
Chord line: A straight line from the leading edge to the trailing edge
What are the two characteristics of a laminar flow boundary layer? - ANSWERS -- Good for high
speeds
- Leaves the wing surface at low speeds
Calculate the potential energy of an Archer weighing 2,500lbs if it is 0.5ft above the ground -
ANSWERS -1250lbs
Law of Conservation of Energy - ANSWERS -Energy cannot be created or destroyed
The amount of yawing moment that the rudder can generate is affected by which two factors? -
ANSWERS -Aerodynamic force / Distance from C.G. to rudder
A 100lb. weight is dropped from a height of 20ft. What is the Ep before it is dropped? -
ANSWERS -2,000ft/lbs
What is the KE of the same weight at the moment of impact after falling 20 feet? - ANSWERS -
2,000ft/lbs
In order to increase CL, high lift devices... - ANSWERS -Any of these answers
