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| Q. |
Which of the following defects occur when weld metal layer fails to fuse together? |
| A. | inclusion of slag |
| B. | inadequate penetration |
| C. | incomplete fusion |
| D. | porosity |
| Answer» C. incomplete fusion | |
| Explanation: incomplete fusion defects occur when weld metal layer fails to fuse together. it causes discontinuity in weld zone. | |
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