The arrow of a welding symbol touches the left face of the stem of a T-joint. A fillet weld symbol is drawn above the reference line. Where does the fillet weld go?
- On the right side of the stem
- On the left side of the stem
- On both sides of the stem
- Across the top end of the stem
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A. On the right side of the stem
Above the reference line means other side. The arrow touches the left face, so the weld goes on the opposite, right-hand side of the stem. Welding where the arrow touches would be correct only if the symbol were below the line.
Reference: AWS A2.4, Standard Symbols for Welding, Brazing, and Nondestructive Examination: location significance of the arrow
A fillet welding symbol shows 1/4 to the left of the weld symbol and a single number, 6, to the right (inch units). What is required?
- One 1/4 in. fillet weld that is 6 in. long
- Six 1/4 in. fillet welds along the joint
- 1/4 in. fillet welds spaced 6 in. apart
- A 6 in. fillet weld made in 1/4 in. long steps
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A. One 1/4 in. fillet weld that is 6 in. long
A single number to the right of the weld symbol is the weld length. A count of welds is never shown this way, and spacing (pitch) would appear as a second number after a hyphen.
Reference: AWS A2.4, Standard Symbols for Welding, Brazing, and Nondestructive Examination: length of fillet welds
What is the main visible difference between a W-shape and an S-shape of the same depth?
- The S-shape has wider flanges with parallel inner surfaces
- The S-shape has a single flange and the W-shape has two
- The S-shape has narrower flanges with sloped inner surfaces
- The S-shape is always lighter per foot than the W-shape
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C. The S-shape has narrower flanges with sloped inner surfaces
S-shapes (American Standard beams) have relatively narrow flanges whose inside faces taper. W-shapes have wider flanges with essentially parallel faces, which makes bolting and fit-up easier.
Reference: AISC Steel Construction Manual, Part 1: W-shapes and S-shapes