_________________ is the most suitable lubricant for drawing mild steel wires?
Correct answer: C. Sodium stearate
- A. Kerosene
- B. Water
- C. Sodium stearate
- D. Lime water
Explanation
Sodium stearate forms a soap-like lubricating film that reduces friction between the die and the steel wire during drawing. Kerosene and water provide poorer lubrication for this operation.
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