AG Mechanics CDE Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

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!

Start Multiple Choice Practice Test
Start Flash Cards

Practice this question and more.

The ________ is a low spot in metal where the force of a flame has pushed out molten metal.

  1. backfire

  2. crater

  3. divot

  4. pockmark

The correct answer is: backfire

In welding, a backfire refers to a momentary sputtering of the flame at the tip of the torch. During a backfire, the flame might briefly extinguish and create a popping sound. In the context of the given question, a backfire can lead to the formation of a low spot in the metal where the force of the flame has pushed out molten metal, causing imperfections in the welding process. Therefore, the correct answer is A. Choices B, C, and D (crater, divot, and pockmark) do not accurately describe the concept of a low spot in metal caused by the force of a flame in welding, making them incorrect options in this context.

More Questions Like This