AG Mechanics CDE Practice Exam

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Prepare effectively for the AG Mechanics CDE exam with our engaging quiz. Featuring multiple-choice questions and detailed explanations, you can increase your knowledge of agricultural mechanics and develop the skills necessary for success in the competition.

Practice this question and more.

The discharge of electricity through an air space is called the:

arc
electrode
slag
weld

The correct answer is: arc

The correct answer is 'arc'. When electricity travels through the air, it ionizes the air particles which creates a conducting path known as an arc. This arc is commonly used in welding processes to generate the high temperatures needed to melt metal. In contrast, 'electrode' refers to the metal rod used in welding to carry the electric current, 'slag' is the byproduct of the welding process, and 'weld' is the joint formed when two metals are fused together by the heat of the arc.