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Electroplater
METAL TREATMENT CHEMICAL BATHS
Set 9
Set 9
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Q5426
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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
Q5427
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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
Q5428
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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
Q5429
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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
Q5430
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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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