Question

The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.

a.

hard

b.

soft

c.

silicon carbide

d.

aluminium oxide

Answer: (d).aluminium oxide

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Q. The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally...

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