CONVERSION COATING PROCESS - Quiz

1) Which solution is used for treatment after colouring?

Nickel acid and Boric acid Copper oxide and Carbonate Zinc and Zinc chloride Hydrochloric acid

2) Which is the cause if the article surface on dark stain during dyeing?

Dyestuff not soluble In sufficient dyestuff Dyestuff not dipping High dyestuff

3) Which process is used to colour film removal?

Coating Bleaching Dipping Brushing

4) Which is the application of conversion coating?

Electronic industry Automobile industry Aerospace industry Shipping industry

5) Which solution is used for conversion coating?

Chromic acid Sulphuric acid Nitric acid Hydro chloric acid