A dense structure of a grinding wheel is used for

A. Hard materials

B. Brittle materials

C. Finishing cuts

D. All of these

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

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  2. In a CNC program block, N002 GO2 G91 X40 Z40......, GO2 and G91 refer to
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  16. A twist drill is specified by its
  17. In metal machining, the work-tool contact zone is a zone where heat is generated due to
  18. In centre less grinders, the maximum angular adjustment of the regulating wheel is
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  20. The in-feed grinding is used to
  21. Which of the following statement is correct as regard to up milling?
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  28. Small nose radius
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