FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

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Prepare for the FAA AMT Airframe Exam with our flashcards and multiple choice questions. Each question includes hints and explanations. Get exam-ready now!

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If too much acetylene is used in the welding of stainless steel, the metal will:

Turn brittle and crack
Lose its magnetic properties
Become more ductile
Absorb carbon and lose its resistance to corrosion

The correct answer is: Absorb carbon and lose its resistance to corrosion

When too much acetylene is used in the welding of stainless steel, the metal will absorb carbon from the acetylene flame. This carbon absorption can lead to the stainless steel losing its resistance to corrosion. Stainless steel's corrosion resistance is a critical property that makes it suitable for many applications in the aviation industry. Therefore, D is the correct answer. Choice A is incorrect because turning brittle and cracking is not a direct result of using too much acetylene in welding stainless steel. Choice B is incorrect as the magnetic properties are not affected by the use of acetylene in welding stainless steel. Choice C is also incorrect because too much acetylene does not make stainless steel more ductile.