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Electroplater
Electroplater Set-1
Hard Chromium Plating
18

Hard Chromium Plating MCQ with Answers

18) Which acid is used for pickling and etching of metal?

Sulphuric acid

Boric acid

Phosphoric acid

Phosphorus acid

Answer is:

Sulphuric acid

Hard Chromium Plating MCQ with Answers

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Related Hard Chromium Plating MCQ with Answers

19) Which chemical is used for vapour degreasing?

Trichloroethylene

Sodium carbonate

Trisodium phosphate

Sodium hydroxide

Answer is:

Trichloroethylene

20) Which solution is used for alkaline cleaning?

Sodium carbonate

Trichloroethylene

Ammonium citrate

Sodium chloride

Answer is:

Sodium carbonate

21) Which solution is used for pickling of ferrous metal?

Hcl acid solution

HF acid solution

HNO₃ acid solution

H₂ SO₄ acid solution

Answer is:

Hcl acid solution

22) Which solution is used for pickling of non-ferrous metals?

H₂ SO₄ acid solution

HF acid solution

Nitric acid solution

Hcl acid solution

Answer is:

HF acid solution

Hard Chromium Plating MCQ with Answers

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