Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by

Adjusting the duration of current

Two plates of the same metal having equal thickness are to be butt we

1.	Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by
A.	Adjusting the current
B.	Adjusting the duration of current
C.	Changing the electrode size
D.	Changing the electrode coating
Answer» D. Changing the electrode coating

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Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by

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