METAL TREATMENT CHEMICAL BATHS - Quiz

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

Hcl acid solution HF acid solution HNO₃ acid solution H₂ SO₄ acid solution

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

H₂ SO₄ acid solution HF acid solution Nitric acid solution Hcl acid solution

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

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

4) Which method is used to maintain nickel bath?

LOD metric method Titrations EDTA Method Gravity method

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

Stopping off lacquer PVC tapes Araldite Glue