railway RRB JE (CBT I + CBT II) Mock Test 2024 Construction Materials and Management Miscellaneous Material
Consider the below statements with respect to dry corrosion of metals and identify correct answer.
Statement A: Dry corrosion occurs usually in the presence of gases and vapours
Statement B: Dry corrosion mainly at high temperatures in the absence of moisture.
1
Both statements are incorrect
2
Both statements are correct
3
Statement B is correct and A is incorrect
4
Statement A is correct and B is incorrect