Production Engineer Question:
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In order to prevent tool from rubbing the work __________ on tools are provided.

A. rake angles
B. relief angles

Answer:

B. relief angles

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Cemented carbide tool tips are produced by powder metallurgy.

A. True
B. False		The silicon carbide abrasive is chiefly used for grinding:

A. cemented carbide
B. ceramic
C. cast iron
D. all of these