best method for examining the surface finish. Visual, touch and scratc – McqOptions

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1.	best method for examining the surface finish. Visual, touch and scratch inspection methods are not as accurate as microscopic. In these methods, minute flaws can’t be detected.
A.	0.0001 mm
B.	0.001 mm
C.	0.01 mm
D.	0.1 mm
Answer» D. 0.1 mm

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