1.

What is the value of frequency used in Magnetic abrasive finishing process?

A. 1 – 10 Hz
B. 12 – 25 Hz
C. 30 – 50 Hz
D. 60 – 100 Hz
Answer» C. 30 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 50 Hz


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