FAA AMT Airframe Practice Exam 2025 – All-in-One Study Guide to Master Aviation Maintenance Technician Certification!

Question: 1 / 1030

The oxyacetylene flame for silver soldering should be

oxidizing

carburizing

neutral

Silver soldering requires a neutral flame in order to achieve the best results. An oxidizing flame, like option A, contains an excess of oxygen and can cause the silver to melt and evaporate, resulting in a poor bond. Carburizing flames, like option B, introduce carbon into the metal, which can affect the color and strength of the soldered joint. A reducing flame, like option D, contains an excess of acetylene and can cause the silver to melt too quickly, also resulting in a poor bond. For optimal silver soldering, option C - a neutral flame - is the best choice.

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reducing

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