Steel Authority Of India Executive Director Interview Questions and Answers for Experienced

Iron and steel making is a process of extracting iron from iron ore and converting it into steel through various methods.

• Iron ore is first mined and then processed to remove impurities and create iron concentrate.

• The iron concentrate is then smelted in a blast furnace to produce pig iron, which contains high amounts of carbon.

• Pig iron is further processed in a basic oxygen furnace or electric arc furnace to remove exce...read more

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