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Sheet Metal Structures, FAA Airframe Prepware Questions and Answers Graded A+
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Sheet Metal Structures, FAA Airframe Prepware Questions and Answers Graded A+ What is the primary advantage of aluminum alloy in aircraft sheet metal structures? Aluminum alloy is lightweight, strong, and resistant to corrosion, making it ideal for aircraft structures. Why are aircraft ...

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  • October 18, 2024
  • 21
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • sheet metal structures faa airframe prepware ques

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  • Sheet Metal Structures, FAA Airframe Prepware
  • Sheet Metal Structures, FAA Airframe Prepware

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Sheet Metal Structures, FAA Airframe
Prepware Questions and Answers
Graded A+
What is the primary advantage of aluminum alloy in aircraft sheet metal structures?


✔✔Aluminum alloy is lightweight, strong, and resistant to corrosion, making it ideal for aircraft

structures.




Why are aircraft skins often riveted rather than welded?


✔✔Riveting is used because it maintains the structural integrity of thin sheets without deforming

the metal due to heat, unlike welding.




What is a joggle in sheet metal work?


✔✔A joggle is an offset formed on the edge of a sheet metal part to allow clearance for another

part or fastener.




Why is it important to remove burrs after drilling holes in sheet metal?


✔✔Burrs can cause stress concentrations, which may lead to cracks or weakened joints over

time.




1

,What is the purpose of a doubler in sheet metal structures?


✔✔A doubler reinforces areas subjected to high stress or where additional strength is required,

such as near cutouts or holes.




How do you prevent corrosion between dissimilar metals in aircraft construction?


✔✔Corrosion is prevented by using proper insulation, coatings, or sealants between dissimilar

metals to prevent galvanic corrosion.




What is the function of a stringer in an aircraft structure?


✔✔A stringer provides longitudinal reinforcement to the fuselage or wing skin, helping maintain

its shape and strength.




Why are some rivets used in aircraft sheet metal structures installed "blind"?


✔✔Blind rivets are used when only one side of the structure is accessible for installation.




What is the significance of edge distance when installing rivets in sheet metal?


✔✔Proper edge distance ensures that the rivet does not weaken the surrounding metal or lead to

cracks.




2

, How are cracks typically stopped in sheet metal components?


✔✔Cracks are often stopped by drilling a small hole at the end of the crack, known as a "stop-

drill" hole, to prevent further propagation.




Why are flush rivets commonly used in aircraft construction?


✔✔Flush rivets are used to reduce drag by maintaining a smooth aerodynamic surface.




What is the purpose of a backing bar during riveting?


✔✔A backing bar is used to support the rivet tail while it is being driven, ensuring a proper

shape and secure installation.




How are sheets of metal typically joined when they need to be extended or reinforced?


✔✔Sheets are joined using lap joints, butt joints with doublers, or by riveting overlapping sheets

together.




What tool is used to check the grip length of a rivet before installation?


✔✔A grip gauge is used to measure the thickness of the material to ensure the correct rivet

length is selected.




3

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