SMAW Principles questions with correct answers

What is a process in which the Welding Arc is Shielded by the decomposition of the electrode covering? CORRECT ANSWER Shielded Metal Arc Welding What determines the current to be used in SMAW? CORRECT ANSWER The type of metal being welded How is heat generated for SMAW? CORRECT ANSWER When an electric Arc forms between the electrode and the base metal What does the flux coating create as the electrode burns? CORRECT ANSWER A vapor shield What does the vapor shield created in SMAW do? CORRECT ANSWER It shields the weld from outside contaminants What kind of direct current, is referred to as straight polarity? CORRECT ANSWER Direct Current Negative What kind of weld penetration does DC negative produce? CORRECT ANSWER Shallow weld penetration What kind of direct current, is referred to as reverse polarity? CORRECT ANSWER Direct Current Positive