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Welder Red Seal · Question

A welder is examining a blueprint for a structural steel assembly. They see a weld symbol with a triangle below the reference line and a flag in the tail. What does the flag indicate?

A flag in the tail of a weld symbol indicates that the weld is to be performed in the field, meaning at the construction site rather than in a fabrication shop.

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Question: A welder is examining a blueprint for a structural steel assembly. They see a weld symbol with a triangle below the reference line and a flag in the tail. What does the flag indicate?

Answer options: ✅ Field weld

  • Shop weld
  • Intermittent weld
  • Weld all around

Correct answer: Field weld

Explanation: A flag in the tail of a weld symbol indicates that the weld is to be performed in the field, meaning at the construction site rather than in a fabrication shop. Shop welds typically do not have a flag. Intermittent welds and weld all around have different symbol modifiers.

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