When the finish symbol used is an M, the weld is finished by machining.

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Multiple Choice

When the finish symbol used is an M, the weld is finished by machining.

Explanation:
The finish symbol on a welding symbol shows what post-weld operation is required. When the symbol is M, it means machining. This requires removing material to bring the weld to the final dimensions and surface condition, which is different from polishing or simply leaving the weld as-is. Machining provides precise tolerances and surface flatness specified by the drawing, so the statement is true.

The finish symbol on a welding symbol shows what post-weld operation is required. When the symbol is M, it means machining. This requires removing material to bring the weld to the final dimensions and surface condition, which is different from polishing or simply leaving the weld as-is. Machining provides precise tolerances and surface flatness specified by the drawing, so the statement is true.

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