Typical roundness error in glass, resulted due to lateral vibrations i – McqOptions

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1.	Typical roundness error in glass, resulted due to lateral vibrations is between?
A.	01 -20 µm
B.	20 - 40 µm
C.	40 - 140 µm
D.	150 - 250 µm
Answer» D. 150 - 250 µm

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