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Electroplater
Electroplater Set-1
Metal treatment, Chemical baths
4

Metal treatment, Chemical baths MCQ with Answers

4) Which is removed on metals by using acid pickling?

Oxide

Paints

Oil

Grease

Answer is:

Oxide

Metal treatment, Chemical baths MCQ with Answers

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Related Metal treatment, Chemical baths MCQ with Answers

5) What is the unit of current density in electroplating?

Amp/ m²

Amp/Second

Amp/m

Amp/ Voltage

Answer is:

Amp/ m²

What is the unit of current density in electroplating?

6) Which depends on mass deposited as per Faraday's laws of electrolysis?

Current

Time

Current and Time

Voltage

Answer is:

Current and Time

7) Which law is applied for electroplating?

Faraday's law of electrolysis

Ohm's law

Lenz's law

Kirchoff's law

Answer is:

Faraday's law of electrolysis

8) What is the molecular weight of water?

18g/mol

20g/mol

17g/mol

16g/mol

Answer is:

18g/mol

Metal treatment, Chemical baths MCQ with Answers

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