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Welder Red Seal · Question

A blueprint indicates a weld with a symbol consisting of a horizontal line and a vertical line forming a 'T' shape. This symbol is placed below the reference line, and to its left, it has a number '5'. What does this symbol represent?

A plug or slot weld symbol is a rectangle or a 'T' shape. When this symbol is below the reference line, it indicates a weld on the arrow side. The number to the

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Question: A blueprint indicates a weld with a symbol consisting of a horizontal line and a vertical line forming a 'T' shape. This symbol is placed below the reference line, and to its left, it has a number '5'. What does this symbol represent?

Answer options:

  • A spot weld on the arrow side with a diameter of 5 mm. ✅ A plug weld on the arrow side with a diameter of 5 mm.
  • A slot weld on the other side with a depth of 5 mm.
  • A seam weld on the arrow side with a width of 5 mm.

Correct answer: A plug weld on the arrow side with a diameter of 5 mm.

Explanation: A plug or slot weld symbol is a rectangle or a 'T' shape. When this symbol is below the reference line, it indicates a weld on the arrow side. The number to the left of the symbol specifies the minimum diameter (for plug) or width (for slot) of the hole, in this case, 5 mm. A spot weld has a different specific symbol.

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