AWS Certified Welding Inspector — FundamentalsWelding SymbolsEasy
A welding inspector is reviewing a blueprint for a structural steel assembly. The blueprint shows a welding symbol with the weld symbol placed on the arrow side of the reference line. Above the reference line, there is a dimension indicating '100'. Below the reference line, there is a dimension indicating '50'. What does the '100' above the reference line indicate for this specific weld?
- AThe pitch of the intermittent weld.
- BThe size of the weld leg.
- CThe number of spot welds required.
- DThe length of the weld segment.
Show answer & explanationAnswer & explanation
Correct answer: B. The size of the weld leg.
For a fillet weld symbol, the dimension placed above the reference line on the arrow side of the joint indicates the size of the weld leg. The '100' therefore represents the leg size.
Why the other options are wrong
- A. Pitch of an intermittent weld is indicated to the right of the weld length, separated by a dash.
- C. Spot weld symbols have specific dimensioning for diameter and number, not a simple '100' above the line for quantity.
- D. Weld length is typically placed to the right of the weld symbol, not above it, unless it's an intermittent weld segment length.
Fillet Weld Size Indication
The size of a fillet weld, typically its leg length, is indicated by a dimension placed on the same side of the reference line as the weld symbol.
- Dimension above for arrow side weld.
- Dimension below for other side weld.
- Dimension represents leg size.
Memory trick: Size is on the side, length is to the right.