General Studies · Welding
What does 'lack of penetration' indicate as a welding defect?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Small gas holes distributed throughout the weld metal
- 2Cracks developed either in the weld metal or in the parent metal
- 3Failure of the weld metal to extend completely into the root of the joint✓
- 4Failure of the filler metal to fuse with the parent metal surface
Correct answer
Failure of the weld metal to extend completely into the root of the joint
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