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 μmI have been asked this question by my school principal while I was bunking the class.Asked question is from USM in section Mechanical Processes of Advanced Machining

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

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 μmI have been asked this question by my school principal while I was bunking the class.Asked question is from USM in section Mechanical Processes of Advanced Machining
Answer» Right option is (C) 40 – 140 μm Best explanation: The roundness is between 40 – 140 μm while MACHINING graphite by Ultrasonic Machining.

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