Pure metal poses a machinability problem in turning operations. The reason is the
A
Increased length of contact due to the production of continuous chip
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B
Susceptibility to chemical reactions
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C
Tendency to from intense adhesion joint with tool face
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D
Absence of inclusions which aids chip formation
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Solution
The correct option is A Increased length of contact due to the production of continuous chip Generally pure metals have high ductility, hence the continuous chips are produced.