Question

Give tow methods for preventing corrision

Answer 1

◆Barrier coating

◆Hot dip galvanization

◆cathodic protection.

Answer 2

Two methods for preventing corrosion are as follows :-

1. $\underline {\mathfrak {Painting:}}$ By painting we are blocking the contact of the contents of the metal with air or moisture, thus preventing rusting.

2. $\underline {\mathfrak {Galvanising :}}$ Galvanisation is the process of applying a protective zinc coating to steel or iron, in order to prevent rusting. Zinc coatings prevent corrosion of the protected metal by forming a physical barrier, and by acting as a sacrificial anode even if this barrier is damaged.

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