PLATING ON NON CONDUCTIVE SURFACE - Practice Mode

1) Which main equipment is required for metallizing?

Metal spray gun Powder coating gun Spray painting gun Electrostic spray gun

Correct Answer: Metal spray gun

2) How should be the metallized surface?

Sealed or paint Clean and Dip Colouring and Descaling Oxidizing and Stripping

Correct Answer: Sealed or paint

3) Which is the purpose of measuring pH value of solution?

Acidity and Alkalinity Metal impurites Organic contaminating Density and Efficeincy

Correct Answer: Acidity and Alkalinity

Explanation:

The pH scale ranges from 0 to 14, with 7 being neutral. pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic). A pH meter is an instrument used to measure acidity or alkalinity of a solution - also know as pH.

4) Which method is used for determination of pH?

Colourmetric method and Electrometric methods Dipping method Transparent method Filteration method

Correct Answer: Colourmetric method and Electrometric methods

5) Which factor the quality of coating mainly depends on?

Adhesion to the base metal Weight of base metal Size of base metal Properties of base metal

Correct Answer: Adhesion to the base metal

Explanation:

Quality of coating mainly depends on Adhesion to the base metal.

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