Title: Explain the principles of arc welding.
Course: Foundations of Agriculture, Food, and Natural Resources (18001-I) > Section: Demonstrating the Use of Agriscience Tools, Equipment, and Instruments in Power, Structural, and Technical Systems

Explanation should include

- different types of arc welding
- the steps involved in the arc-welding process
- the three properties of metals
- the effects welding has on metal properties
- electrical principles involved in arc welding.

Process/Skill Questions:

- What are safety precautions an arc welder must observe?
- Why is the ground connection important in arc welding?
- What are some arc welding applications in agriculture?
- What is the difference between MIG, TIG, and shielded metal arc welding (SMAW)?
- What is the difference between alternating current (AC) and direct current (DC) arc welding?