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Electroplater
COPPER PLATING
Set 11
Set 11
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Q5179
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Which process is used to reduce the chromium solution carried over on plated components?
A
Final rinsing
B
Post treatment
C
Neutralising dip
D
Heat treatment
Q5180
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Which is the cause for soft deposit defect in hard chromium plating?
A
High current density
B
Too high temperature
C
Presence of grease
D
Too low current density
Q5181
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Which acid is used to remove chromium from copper and its alloys?
A
Dilute sulphuric acid
B
Dilute hydrochloric acid
C
Cadmium cyanide
D
Sodium cyanide
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