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Answers Drawing C BS EN 22553
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Course Reference WIS 10 Copyright © 2003 TWI Ltd
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Remember in the CSWIP 3.2 Senior Welding Inspectors examination your are required to interpret a fabrication drawing and comment on the welding symbols !
Time allowed 1 hour
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The drawing will contain around 15 to 20 symbols
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Drawings and Weld Symbol Interpretation
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With the supplied drawing you are required to carry out the following 1. Reference the drawing number onto your answer sheet 2. Specify the standard to which the weld symbols apply 3. Produce a neat sketch of how you see the welds,
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numbering each weld individually. 4. Fully describe each weld symbol, example Welded arrow side: Single-V butt Welded other side: Sealing run.
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5. On completion of the welding symbol interpretation, you are then required to comment on the drawing with reference to errors and incorrect set-ups Copyright © 2003 TWI Ltd
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BS EN 22553 Answers DRG C
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1. Welded arrow side: Single-J butt, flat (flush) finish. Welded other side: 12mm leg length fillet weld.
2. Welded arrow side: Single-bevel butt partial penetration, depth of preparation 25mm. Welded other side: 6mm leg length fillet weld, welded all way around, Drawing indicates the pipe to be prepared incorrect set-up
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3. Welded both sides: 12mm leg length fillet weld, toes blended smooth, welded all way round (peripheral weld). After welding is completed MT to be carried out.
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4. Welded arrow side: Single-bevel butt weld, smooth finish. Welded other side: 12mm leg length fillet weld.
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BS EN 22553 Answers DRG C
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5. Welded both sides: Double-bevel butt weld with a broad root face, A.1 reference symbol indicates specific instructions e.g. procedure sheet.
6. Welded arrow side: Single-J butt depth of preparation 50mm with a 35mm leg length fillet weld superimposed, toes shall be blended smooth Welded other side: 8mm leg length fillet weld
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Welded arrow side: Steep-flanked single-bevel butt with a 12mm leg length fillet weld superimposed. Welded other side: 12mm leg length fillet weld.
8. Welded arrow side: Steep flanked single-bevel butt flush finish
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BS EN 22553 Answers DRG C
9.
Welded arrow side: Square butt, site or field weld.
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10. Welded arrow side: Surfacing weld (hard facing).
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11. Welded arrow side: Single-J butt with a 25mm leg length fillet weld superimposed, reference symbol indicates specific instruction.
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12. Welded arrow side: Double bevel butt weld, 16mm leg length fillet weld superimposed, weld to be made all way around component. Note: fillet weld should be placed on other side. Copyright © 2003 TWI Ltd
BS EN 22553 Answers DRG C
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13. Welded both sides: Five fillet welds 8mm leg lengths, Length of each weld 20mm distance between each weld 20mm
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14. Welded arrow side: 35mm leg length fillet weld concave profile
15. Welded arrow side: 12mm leg length, welded all way around part (peripheral) weld
16. Welded other side: 12mm leg length,concave profile welded all way around part (peripheral) weld
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BS EN 22553 Answers DRG C
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17. Welded both sides: Double-bevel butt with a 12mm leg length fillet weld superimposed peripheral weld. After welding to be inspected with UT. 25
18. Welded both sides: Three 16mm leg length fillet welds, each weld 25mm in length, gap between each weld 50mm welds to be staggered.
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19. Welded both sides: Three 12mm leg length fillet welds, each weld 50mm in length, To be welded with the MAG process.
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20. Welded arrow side: Single-bevel butt weld with a 10mm leg length fillet weld superimposed, peripheral weld. After welding weld to be inspected with UT Copyright © 2003 TWI Ltd
BS EN 22553 Answers DRG C
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21. Welded both sides: Single-J butt, flush finish, peripheral weld
22. Welded arrow side: Steep-flanked single-V butt, flat (flush finish). Welded other side: Backing run flat (flush) finish, weld to be made all around the part welded using the MAG process
23. Welded both sides: Double-U butt weld, flat (flush finish peripheral weld.
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BS EN 22553 Answers DRG C
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24. Welded arrow sides: Convex single-V butt weld with permanent backing strip.
25. Welded both sides: Concave fillet weld with 12mm leg lengths. MT inspection required.
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