Question

(quiz#2) smaw - electrode selectio
started: sep 21 at 10:45pm
quiz instructions
students will watch the video and then answer knowledge they have learned from the video.
question 2
what happens as the flux burns off while welding?
it creates added light radiation
it prevents slag inclusions
it creates porosity in the weld
it creates a shielding gas

Explanation:

Flux in Shielded Metal Arc Welding (SMAW) when it burns off, decomposes to form a shielding gas that protects the weld pool from atmospheric contaminants like oxygen and nitrogen. This shielding gas helps in producing a sound weld. It does not create added light radiation, prevent slag inclusions (slag is a by - product and flux helps in its formation and removal in other ways), or create porosity (porosity is often due to gas entrapment during solidification and not directly related to flux burning off in this context).

Answer:

it creates a shielding gas