Vallabh Metal inc Interview Questions and Answers

I am a graduate engineer trainee with a strong family background. My hobbies include playing guitar and my favorite subject is mechanical engineering.

• I am a graduate engineer trainee

• I come from a strong family background

• My hobbies include playing guitar

• My favorite subject is mechanical engineering

Copper is extracted from ore through several stages including crushing, grinding, and concentration.

• The ore is first crushed into small pieces

• It is then ground to a fine powder

• The powder is then concentrated using various methods such as froth flotation

• The concentrated ore is then roasted to remove any remaining impurities

• Finally, the copper is extracted using electrolysis or smelting

• The final product is usually in the

Electrorefining, electrowinning, and electroplating are all electrochemical processes used for different purposes.

• Electrorefining is used to purify metals through electrolysis, such as copper refining.

• Electrowinning is used to extract metals from their ores through electrolysis, such as zinc production.

• Electroplating is used to coat a metal object with a thin layer of another metal, such as gold plating on jewelry.

• All ...read more

Wire drawing at room temperature is cold working for both steel and tin rods.

• Wire drawing involves pulling a metal rod through a die to reduce its diameter.

• Cold working is a process where the metal is deformed at room temperature.

• Hot working is a process where the metal is deformed at high temperatures.

• Steel and tin rods can be cold worked at room temperature through wire drawing.

• Hot working is typically done at high t...read more