Online Test - Modern Materials

Electroplating is a -------------- process

• chemical

• electrochemical

• physical

• biological

In electroplating process, base metal acts as ----------

• cathode

• anode

• electrode

• metal sheet

In electroplating the coating metal is acts as ----------

• electrode

• metal rod

• anode

• cathode

Electroplating process is done by applying ------- current

• alternate

• direct

• impressed

• eddy

---------- reaction takes place in electroplating bath

• Oxidation

• Reduction

• Redox

• Chemical

In electroplating set up, -------------- reaction occurs at anode.

• chemical

• electrochemical

• reduction

• oxidation

In electroplating set up, -------------- reaction occurs at cathode.

• reduction

• oxidation

• redox

• chemical

------------ method is a common method for cleaning impurities present on the metal surface

• Acid cleaning

• Alkali cleaning

• buffing

• Rubbing

Current density is expressed in ----------

• Volt

• ampere

• mA/cm2

• mA

----------- concentration of metal ions will form uniform coherent coating

• High

• Moderate

• Saturated

• Low