Welspun Corp Senior Manager Interview Questions and Answers

Extraction of aluminum involves the process of electrolysis of alumina.

• Aluminum is extracted from its ore, bauxite, through the Bayer process.

• The extracted alumina is then converted into aluminum through the Hall-Héroult process.

• Electrolysis is used to separate the aluminum from the oxygen in alumina.

• The process requires a large amount of electricity and is energy-intensive.

Alumina is extracted from bauxite through a process called the Bayer process.

• Alumina is the primary component of aluminum production.

• The Bayer process involves crushing the bauxite ore, mixing it with sodium hydroxide, and heating it in a pressure vessel.

• The resulting solution is filtered to remove impurities, leaving behind alumina which is then processed into aluminum.

• Alumina is used in a variety of industries includ

Oil-filled transformers are better due to higher efficiency and lower maintenance requirements. Test runs should include insulation resistance, turns ratio, and load testing.

• Oil-filled transformers are better than dry-type transformers due to higher efficiency and lower maintenance requirements.

• Test runs should include insulation resistance testing to check for any insulation breakdown.

• Turns ratio testing should be con...read more

The Blast Furnace is equipped with multiple RIO panels and a variety of DI/DO and AI/AO channels.

• The Blast Furnace typically has several RIO panels installed for monitoring and control purposes.

• The number of DI/DO channels provided in a Blast Furnace can vary depending on the specific setup and requirements.

• During commissioning, major problems may include issues with sensor calibration, communication errors, or softwar...read more