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Electroplater
NICKEL PLATING
Set 1
Set 1
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Q5439
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What is pickling process?
A
Buffing
B
Cleaning
C
Polishing
D
Roughening
Q5440
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Which acid is used for pickling of mild steel?
A
Hydrochloric acid
B
Nitric acid
C
Sulphonic acid
D
Hydrofluoric acid
Q5441
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Which power source is used in electroplating?
A
AC
B
Low DC
C
High AC
D
High DC
Q5442
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Which is removed on metals by using acid pickling?
A
Oxide
B
Paints
C
Oil
D
Grease
Q5443
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What is the unit of current density in electroplating?
A
Amp/ m<sup>2</sup>
B
Amp/Second
C
Amp/m
D
Amp/ Voltage
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