According to AST M E709-95 and API, after removing magnetization of pa – McqOptions

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1.	According to AST M E709-95 and API, after removing magnetization of parts after examination, the residual magnetism shall not exceed (1 gauss = 0.0001 tesla):
A.	3 10-4T (3gauss)
B.	4 10-4T (4 gauss)
C.	6 10-4T (6gauss)
D.	8 10-4T (8 gauss)
Answer» B. 4 10-4T (4 gauss)

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