PLATING PROCESS MECHANICAL CLEANING - Practice Mode

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

Hcl acid solution HF acid solution HNO<sub>3</sub> acid solution H<sub>2</sub> SO<sub>4</sub> acid solution

Correct Answer: Hcl acid solution

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

H<sub>2</sub> SO<sub>4</sub> acid solution HF acid solution Nitric acid solution Hcl acid solution

Correct Answer: HF acid solution

3) Which solution is used for pickling of magnesium alloys?

Hydrochloric acid solution Hydrofluoric acid solution Nitric acid solution Dilute sulphuric acid

Correct Answer: Dilute sulphuric acid

4) Which method is used to maintain nickel bath?

LOD metric method Titrations EDTA Method Gravity method

Correct Answer: EDTA Method

5) Which material is used for masking of hard plating?

Stopping off lacquer PVC tapes Araldite Glue

Correct Answer: Stopping off lacquer

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