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Electroplater
Electroplater Set-1
Chemical cleaning, Maintenance of baths and Plating
44

Chemical cleaning, Maintenance of baths and Plating MCQ with Answers

44) How the chromium plating solution to extent it's grade to 100g/1000 AH?

By adding of high grade sulphuric acid

By adding of high grade chromic acid

By adding of chromium sulphate

By heating the solution up to 50 Degree Centigrade temperature

Answer is:

By adding of high grade chromic acid

Chemical cleaning, Maintenance of baths and Plating MCQ with Answers

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Related Chemical cleaning, Maintenance of baths and Plating MCQ with Answers

45) Which is the effect, due to the formation of trivalent chromium content with solution in bright chromium plating?

Rise in temperature to high value

Fall in solution efficiency

Rise in concentration of chromic acid

Reduce the corrosion resistance

Answer is:

Fall in solution efficiency

46) Where the conventional bright chromium plating type is employed?

Electronic components

Automobile fitting

Electrical contacts

Flatware industries

Answer is:

Automobile fitting

47) Which is used for the suspension of articles to be bright chromium plated?

Bus bars

Steel iron rods

Jigs (or) Racks

Iron angles

Answer is:

Jigs (or) Racks

48) Which defect occurs due to inefficient contacts of articles in bright chromium plating?

Brown stains on deposit

Dull, grey, rough deposit

Blistered deposits

Little chromium deposit on the article

Answer is:

Brown stains on deposit

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