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For grinding of softer materials, the grinding wheel should have __________ grain size.

A. Finer

B. Coarser

C. Medium

D. Any type of

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
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  12. Compressed dry air is used as the cutting fluid, while machining
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  15. Dislocations are __________ defects.
  16. Dephosphorization of molten pig iron is favoured by
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  20. Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)
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