August 2010
Quiz of the Month

Shielded Arc Metal Welding Basic

1. When striking an arc, the arc length is held for a moment at about two electrode diameters... (for about 1/8" diameter electrode the arc is about 1/4")  
   a) to pre-heat the base metal  
   b) to light up the area so you can see
   
   
   
2. The width of the weld bead should be about...  
   a) one electrode width
   b) two electrode widths
   
   
   
3. The sound of a correct arc is like...
   a) a sputtering sound
   b) a continuous "frying" sound
   
   
   
4. When welding over previous deposited bead...
   a) hold a long arc to melt the solidified slag
   b) clean the previous bead thoroughly before the next weld
   
   
   
5. At the completion of the weld, the crater...
   a) should be filled to the height of the bead
   b) should remain unfilled

Answers