Skin friction drag is caused by

CPL PoF Drag Revision 2

Quiz
•
Specialty, Other
•
Professional Development
•
Easy

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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sheer stress between successive layer of air
The mixing between converging airflows at the junction of various aircraft surfaces
The pressure differential between the forward are rear facing surfaces
Wingtip vortices
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Interference drag is caused by:
The pressure differential between the forward and rear facing surfaces
The shear stress between successive layers of air
The mixing between converging airflows at the junctions of various aircraft surfaces
Wingtip vortices
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Form drag is caused by:
The shear stress between successive layers of air
The pressure differential between the forward and rear facing surfaces
Wingtip vortices
The mixing between converging airflows at the junctions of various aircraft surfaces
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of drag does streamlining reduce
Induced
Form
Skin friction
Interference
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does streamlining reduce drag
By increasing the pressure differential between forward and rear facing surfaces
By decreasing the pressure differential between the forward and rear facing surfaces
By increasing the pressure differential between the upper and lower surfaces
By decreasing the pressure differential between the upper and lower surfaces
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following would be used to reduce interference drag?
Winglets
Flush riveting
Flying faster
Filleting
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
By increasing an aircrafts speed you would (Select all that apply)
Increase form drag
Increase interference drag
Increase induced drag
Decrease skin friction drag
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