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Electroplater
COPPER PLATING
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1) What is pickling process?
Buffing
Cleaning
Polishing
Roughening
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Correct Answer: Cleaning
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1) What is pickling process?
Buffing
Cleaning
Polishing
Roughening
Explanation:
.
2) Which acid is used for pickling of mild steel?
Hydrochloric acid
Nitric acid
Sulphonic acid
Hydrofluoric acid
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Correct Answer: Hydrochloric acid
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2) Which acid is used for pickling of mild steel?
Hydrochloric acid
Nitric acid
Sulphonic acid
Hydrofluoric acid
3) Which power source is used in electroplating?
AC
Low DC
High AC
High DC
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Correct Answer: Low DC
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3) Which power source is used in electroplating?
AC
Low DC
High AC
High DC
4) Which is removed on metals by using acid pickling?
Oxide
Paints
Oil
Grease
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Correct Answer: Oxide
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4) Which is removed on metals by using acid pickling?
Oxide
Paints
Oil
Grease
5) What is the unit of current density in electroplating?
Amp/ m<sup>2</sup>
Amp/Second
Amp/m
Amp/ Voltage
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Correct Answer: Amp/ m<sup>2</sup>
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5) What is the unit of current density in electroplating?
Amp/ m<sup>2</sup>
Amp/Second
Amp/m
Amp/ Voltage
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