The machinability of steel is increased by

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A. Silicon and sulphur

B. Phosphorous, lead and sulphur

C. Sulphur, graphite and aluminium

D. Phosphorous and aluminium

Answer: Option B

Solution (By Examveda Team)

Phosphorous, lead and sulphur improves machinability and resistance to corrosion and it intensifies the effects of other alloying elements

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