Question

What type of protection is galvanising?

• A. Physical protection
• B. Sacrificial protection
• C. Physical and sacrificial protection
• D. None of the above.

Answer 1

The correct option is C Physical and sacrificial protection

Galvanizing is physical and sacrificial protection.
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. When the iron or steel is exposed to moist air, initially the outer coating of zinc is oxidized, leaving the iron or steel corrosion-free.