Correct option is B
The
coating factor is the ratio of the total diameter of a coated electrode (including the flux coating) to the diameter of the core wire (the metallic part of the electrode). It is an important parameter in welding, as it determines the thickness of the flux coating and affects the welding process, such as arc stability, deposition rate, and slag formation.
Mathematically,
Coating Factor = Electrode Diameter(D)/ Core Diameter (d)
Electrode Diameter (D): The total diameter of the electrode, including the flux coating.
Core Diameter (d): The diameter of the metallic core wire without the coating.
