What type of symbols are normally located at the tail of the welding symbol?

• A. Material grade
• B. Welding symbol type
• C. Specification, process, or other reference
• D. Tail length

Answer: (C)

The information placed in the tail of a welding symbol is meant for references to controlling documents. It normally carries specification, process, or other reference details that dictate how the weld must be made. In practice, the tail might point to the Welding Procedure Specification (WPS), the applicable code or standard (for example, AWS D1.1 or ASME IX), or other documents that govern the welding project. This separation allows the main symbol to convey the weld’s geometry while the tail directs you to the exact procedures and standards to follow. The tail is often optional if the project uses a single, overall specification; when present, it ties the weld to the appropriate procedures and references.