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Electroplater
QUALITY CONTROL TESTS
Set 7
Set 7
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Q5819
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Which solution is used for treatment after colouring?
A
Nickel acid and Boric acid
B
Copper oxide and Carbonate
C
Zinc and Zinc chloride
D
Hydrochloric acid
Q5820
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Which is the cause if the article surface on dark stain during dyeing?
A
Dyestuff not soluble
B
In sufficient dyestuff
C
Dyestuff not dipping
D
High dyestuff
Q5821
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Which process is used to colour film removal?
A
Coating
B
Bleaching
C
Dipping
D
Brushing
Q5822
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Which is the application of conversion coating?
A
Electronic industry
B
Automobile industry
C
Aerospace industry
D
Shipping industry
Q5823
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Which solution is used for conversion coating?
A
Chromic acid
B
Sulphuric acid
C
Nitric acid
D
Hydro chloric acid
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