Manufacturing And Production Technology
Tool life is measured by the

Time the tool is in contact with the job
Volume of material removed between tool sharpenings
All of the listed here
Number of pieces machined between tool sharpenings

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Manufacturing And Production Technology
Which of the following statement is correct regarding grinding of high carbon steel?

The grinding wheel has to be of open structure.
Grinding at high speed results in the reduction of chip thickness and cutting forces per grit.
All of these
Aluminium oxide wheels are employed.

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