Grinding Machine

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Why is grinding sometimes the only way to remove metal from a workpiece, per the module?

A.Because it may be the only way of removing metal from a hardened workpiece

B.Because grinding wheels never wear out unlike milling cutters

C.Because grinding is always cheaper than turning operations

D.Because grinding can be done without any machine at all

What is the most widely used grain size range for grinding wheels?

A.From 10 to 120

B.From 1 to 10

C.From 200 to 1200

D.From 500 to 1000

What is a grinding wheel made of?

A.Small abrasive particles held together by a bonding material

B.A single continuous high-speed-steel cutting edge

C.Multiple tungsten carbide inserts bolted to a hub

D.A solid cast-iron disc with diamond-tipped teeth

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