____ act as scavengers that combine with contaminants and float to form the slag on top of the weld.
A) Carbon and nickel
B) Silicon and manganese
C) Aluminum and copper
D) Sulfur and magnesium

Question

Quizplus · Accepted Answer

Silicon and manganese act as scavengers and form slag on top of the weld by combining with contaminants. Carbon and nickel are commonly used as alloying elements, while aluminum and copper are added for their specific properties. Sulfur and magnesium can be detrimental to the weld quality and are typically kept to low levels or removed from the weld zone.

____ Act as Scavengers That Combine with Contaminants and Float