MIG Welding Knowledge Flashcard

Front

What is the primary purpose of wearing a welding helmet during MIG welding?

Back

To protect the welder from UV and infrared rays

Front

Which of the following is a common type of MIG welding? Gas Tungsten Arc Welding (GTAW), Shielded Metal Arc Welding (SMAW), Flux-Cored Arc Welding (FCAW), Submerged Arc Welding (SAW)

Back

Flux-Cored Arc Welding (FCAW)

Front

In MIG welding, what does the term "spray transfer" refer to?

Back

A method of transferring molten metal droplets across the arc

Front

Which welding position is considered the most difficult for beginners? Options: Flat position, Horizontal position, Vertical position, Overhead position

Back

Overhead position

Front

What is a common cause of porosity in MIG welds?

Back

Contaminated shielding gas

Front

Why is it important to clean the metal surface before welding?

Back

To prevent contamination and defects

Front

What is the recommended angle for holding the MIG welding gun in a flat position?

Back

10-15 degrees

Front

Which of the following is a safety practice to follow when MIG welding? Wearing short sleeves to stay cool, Using a water-based fire extinguisher, Ensuring proper ventilation in the welding area, Standing directly under the welding arc

Back

Ensuring proper ventilation in the welding area

Front

What is the main function of shielding gas in MIG welding?

Back

To protect the weld from atmospheric contamination

Front

Which metal preparation technique involves removing oxides and impurities from the surface?

Back

Pickling