Question

State four ways of preventing rusting.

Answer 1

Rusting Can be prevented by :

1. Galvanising – iron metal is coated with zinc.
2. Enamelling – iron surface is baked with mixutre of silicates at high temperature.
3. Coating with red lead oxide paint or tar on iron surface.
4. Oils and grease coating on iron surface cuts off moist air and prevents rusting.