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BPSC 63rd Prelims Exam 01 Jul 2018 Solved Paper
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Question : 4
Total: 150
Galvanized iron pipes have a coating of
zinc
mercury
lead
chromium
None of the above/More than one of the above
Validate
Solution:
Galvanization or galvanizing is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which the parts are submerged in a bath of molten zinc.
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