Which type of symbol is used to express that a weld is to be completed in the field?

Which type of symbol is used to express that a weld is to be completed in the field?

• A. A secondary welding symbol.
• B. A welding symbol.
• C. A basic welding symbol.
• D. A supplementary symbol.

Answer: (D)

Field location is added to welding symbols as a supplementary instruction. supplementary symbols are used to convey extra details beyond the basic weld type, such as that the weld must be performed in the field rather than in a shop. That makes the field-on-site requirement clear to the fabricator without changing the weld itself. The basic welding symbol only shows the weld type, not where it’s done; the entire welding symbol is the full notation for the weld itself, and “secondary symbol” isn’t the standard term used to denote field work. So, using a supplementary symbol best communicates that the weld is to be completed in the field.

Field location is added to welding symbols as a supplementary instruction. supplementary symbols are used to convey extra details beyond the basic weld type, such as that the weld must be performed in the field rather than in a shop. That makes the field-on-site requirement clear to the fabricator without changing the weld itself. The basic welding symbol only shows the weld type, not where it’s done; the entire welding symbol is the full notation for the weld itself, and “secondary symbol” isn’t the standard term used to denote field work. So, using a supplementary symbol best communicates that the weld is to be completed in the field.