1)CRACK 2)LOF 3)LOP 4)CONCAVITY: - Pin hole -Worm hole -Surf porosity -Burn through 5)SPATTER 6)ARC STRIKES 7)OVER LAP 8)POOR RESTART 9)CRATER 10)SLAG 11) purjing 1)Excess metal welding 2)Undercut 3)Excess cap 4) Excess penetration 5)Under fill 6)Filler metal 7) Tangestan inclusion 8)high low 9)Bad conectio ...