1) A visual inspection of a weld reveals small cavities or holes on the surface. What is the most likely defect? a) Undercut b) Slag Inclusion c) Porosity 2) It is a groove melted into the base metal at the toe of the weld, which weakens the joint. a) Incomplete Fusion b) Undercut c) Crack 3) Which of the following defects is generally considered the most serious and always requires removal before rewelding? a) Surface Porosity b) Slag Inclusion c) Crack 4) What is the primary purpose of a visual weld inspection? a) To make the weld look prettier. b) To determine the tensile strength of the weld. c) To identify surface discontinuities that could lead to weld failure. 5) An inspector sees that the weld metal has not stuck to the side of the joint, leaving a visible gap. What should be his conclusion? a) Acceptable, as long as the weld is strong. b) Needs rewelding due to incomplete fusion. c) Needs rewelding due to undercut.

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