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Electroplater
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Conversion coating process
21

Conversion coating process MCQ with Answers

21) Which is the name of chemical used for etching in economical way?

Alkaline ammonia

Sulpuric - Hydrogen peroxide

Cupric chloride

Ferric chloride

Answer is:

Ferric chloride

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Related Conversion coating process MCQ with Answers

22) Which is the name of process that removing of copper present in the unmasked portion in PCB?

Etching

Desoldering

Filing

Grinding

Answer is:

Etching

23) Which is the reason that PCB taken out of the solution is to be cleaned by fresh water?

To clean surface

To stop further etching

To check condition of copper

To remove the paints

Answer is:

To stop further etching

24) Which is the composition of solution Ferric chloride?

Iron and Flouride

Iron and Chromium

Iron and Cadmium

Iron and Chlorine

Answer is:

Iron and Chlorine

25) What is the chemical formula of aluminium?

A

AM

Al

AN

Answer is:

Al

What is the chemical formula of aluminium?

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