CHEMICAL CLEANING MAINTENANCE OF BATHS

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CHEMICAL CLEANING MAINTENANCE OF BATHS
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Q4994

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Which precaution is essential for effective adherence of chromium deposit on the surface to be electroplated?

A Should be in rectangular shape

B Should be in clean condition

C Should be flat

D Should have more thickness

Q4995

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What is the use of bright chromium plating?

A For articles with brilliant bluish white appearance

B In electronics and semi conductor device

C For decorative coating iron and steel

D For electric utility to artistic sculptures

Q4996

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What is the purpose of polypropylene tank used for bright chromium plating?

A To reduce spray and the loss of solution

B For swilling drag in and drag out

C To reduce the chromium solution filled in it

D To reduce heat and evaporation losses

Q4997

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

A By adding of high grade sulphuric acid

B By adding of high grade chromic acid

C By adding of chromium sulphate

D By heating the solution up to 50 Degree Centigrade temperature

Q4998

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

A Rise in temperature to high value

B Fall in solution efficiency

C Rise in concentration of chromic acid

D Reduce the corrosion resistance

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