A dark, sharply defined, straight line in the centre of the weld, and – McqOptions

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1.	A dark, sharply defined, straight line in the centre of the weld, and running parallel with the length of the weld should be interpreted as:
A.	Porosity
B.	Incomplete penetration
C.	A slag inclusion
D.	Lack of fusion
Answer» C. A slag inclusion

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