Question 136General Subjects - QMED
70% to passFlux is used when soldering, in order to _______________.
Aensure proper tinning
Bmake the solder "flow"
Cdecrease the melting point of the solder
Dclean the joint area
AI Explanation
The correct answer is D) clean the joint area. Flux is used when soldering to clean the joint area and remove any oxidation or impurities on the surfaces being soldered. This allows the solder to wet and adhere properly to the surfaces, creating a strong and reliable solder joint. The other answer choices are incorrect. Flux does not ensure proper tinning (A), it helps the solder flow and adhere (B), or decrease the melting point of the solder (C). The primary function of flux in the soldering process is to clean and prepare the joint area for the solder to be applied effectively.
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