Galvanizing is generally done on ______.

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Question

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ALP CBT 2 Fitter Previous Paper: Held on 23 Jan 2019 Shift 1

Answer 1

Explanation:

Galvanizing:

Galvanizing protects the underlying iron or steel in the following main ways:
The zinc coating, when intact, prevents corrosive substances from reaching the underlying steel or iron.
The zinc protects iron by corroding first. For better results, the application of chromates over zinc is also seen as an industrial trend.
In the event the underlying metal becomes exposed, protection can continue as long as there is zinc close enough to be electrically coupled. After all of the zinc in the immediate area is consumed, localized corrosion of the base metal can occur.
GI pipes have a coating of zinc metal on bare steel pipe, through a molten zinc bath, ensuring natural corrosion resistance, even in outdoor conditions.
Galvanizing is done to all metal but most generally it is done on low carbon steel.