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Electroplater
Electroplater Set-1
Quality control - Tests
28

Quality control - Tests MCQ with Answers

28) Which solution is used for anodized coating?

Hydrochloric acid

Hydrofloric acid

Sulphuric acid

Carbonic acid

Answer is:

Sulphuric acid

Quality control - Tests MCQ with Answers

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Related Quality control - Tests MCQ with Answers

29) Which type of coating is to be done on the article before colouring?

Anodizing

Painting

Dipping

Phosphating

Answer is:

Anodizing

30) Which process is used for colour effect on the article ?

Stopping of process

Cleaning process

Dipping process

Pickling process

Answer is:

Stopping of process

31) Which solution is used for treatment after colouring?

Nickel acid and Boric acid

Copper oxide and Carbonate

Zinc and Zinc chloride

Hydrochloric acid

Answer is:

Nickel acid and Boric acid

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

Dyestuff not soluble

In sufficient dyestuff

Dyestuff not dipping

High dyestuff

Answer is:

Dyestuff not soluble

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