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Question
The grooving is an operation of
Options:
A .  bevelling the extreme end of a workpiece
B .  embossing a diamond shaped pattern on the surface of a workpiece
C .  reducing the diameter of a workpiece over a very narrow surface
D .  enlarging the end of a hole cylindrically
Answer: Option C
Answer: (c).reducing the diameter of a workpiece over a very narrow surface

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