Excessive electrode extension requires an increase in what to adequately blanket the weld pool:

To reduce surface tension, the mill scale could be ground off or the use of ____________ also helps.

Undercutting and an unstable arc are more problematic with which type of shielding gas?

Porosity in a straight line is called aligned porosity.  What is it called if the porosity is all over the weld?

A crack at the end of the weld is called a:

With an improper work angle you will likely end up with ______________ or incomplete penetration.

Two similar types of incomplete fusion to the base metal are called cold lap and ______________.

An unacceptable flaw is called a _______________.

Round scattered droplets of weld metal that are unsightly and may lead to stress riser cracking is:

If the base metal at the toes of the weld are melted away, the defects or discontinuities are called ______________.

Identify what "A" represents.

Identify what "B" represents.

Identify what "C" represents.

Identify what "D" represents.