- Carbon
- Manganese
- Sulphur
- Copper
- 120 dB (A)
- 130 dB (A)
- 140 dB (A)
- 115 dB (A)
- 90 dB (A)
- 85 dB (A)
Q) Which of the following is added to steel to increase resistance to corrosion?
Solution:
Addition of small quantity of copper increases resistance to corrosion
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