AG Mechanics CDE Practice Exam

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Prepare for the AG Mechanics CDE Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

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The layer formed on top of the weld caused by the flux and impurities of the base metal floating to the top is called:

  1. bead

  2. puddle

  3. slag

  4. tack weld

The correct answer is: slag

The layer formed on top of the weld caused by the flux and impurities of the base metal floating to the top is called "slag." Slag is a byproduct of the welding process and needs to be removed after the weld has cooled. The other options: A. bead - refers to the distinctive shape left by the welding process. B. puddle - is a term used to describe the molten metal pool during welding. D. tack weld - is a temporary weld used to hold pieces in place before the final welding.

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