Question

question 13
1 pts
in the gmaw process, metallic parts are fused when they are melted by a(n) ______ between a continuously fed welding wire electrode and the workpiece.
air gap
shielding gas
electrical arc

question 14
1 pts
in the self - shielded flux cored arc welding process, how is the molten weld metal shielded?
it does not need any
shielded gas created by the external tank of shielding gas
shielded gas created by the flux

Explanation:

In GMAW (Gas - Metal Arc Welding), the heat source for melting is an electrical arc between the welding wire electrode and the workpiece. In self - shielded flux cored arc welding, the flux generates a shielding gas to protect the molten weld metal.

Answer:

Question 13: C. electrical arc
Question 14: C. Shielded gas created by the flux