Discussion :: Workshop Technology
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Piercing is an operation of cutting
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A.
a cylindrical hole in a sheet of metal by the punch and the die
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B.
a hole (other than cylindrical) in a sheet of metal by the punch and the die
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C.
a flat sheet to the desired shape
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D.
a number of holes evenly spaced in a regular pattern on a sheet of metal
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Answer : Option B
Explanation :
No answer description available for this question.
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