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Electroplater
Electroplater Set-1
Metal treatment, Chemical baths
33

Metal treatment, Chemical baths MCQ with Answers

33) Which is the property of nickel?

Rapid soluble in hydrochloride

High mechanical strength

Dilute sulphuric acid attacks nickel

Low mechanical strength

Answer is:

High mechanical strength

Metal treatment, Chemical baths MCQ with Answers

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Related Metal treatment, Chemical baths MCQ with Answers

34) Which type of electroplating is used for decorative finishing?

Gold plating

Silver plating

Nickel plating

Cadmium plating

Answer is:

Nickel plating

35) Which type of plating tank is used for swilling, drag in and drag out operation for nickel plating?

Glass fibre tank

Enamelled tank

Stoneware tank

Stainless steel tank

Answer is:

Stainless steel tank

36) What are the chemical contains in electrolyte used for dull nickel plating?

Nickel chloride, Boric acid and Ammonium sulphate

Boric acid, Nickel sulphate and Ammonium chloride

Dilute sulphuric acid, Hydro chloric acid and Boric acid

Nickel sulphate, Sulphuric acid and Hydrochloride

Answer is:

Nickel chloride, Boric acid and Ammonium sulphate

37) What is the range of pH value is to be maintained for nickel plating solution?

2.5 to 3.0

3.2 to 4.2

3.6 to 4.2

4.5 to 5.0

Answer is:

3.6 to 4.2

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