Jindal Stainless Interview Questions, Process, and Tips

Q1. What kind of nozzle use for slab cooling in continuous casting process.
Ans. 
Submerged entry nozzles (SEN) are commonly used for slab cooling in continuous casting process.
• Submerged entry nozzles (SEN) are designed to deliver cooling water directly to the slab surface.

• SEN helps in controlling the solidification process and improving the quality of the slab.

• Examples of SEN manufacturers include Vesuvius, TATA Steel, and SMS group.
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Q2. What is internal casting defect in continuous casting.
Ans. 
Internal casting defect in continuous casting refers to flaws or imperfections that occur within the casting material during the casting process.
• Internal shrinkage: caused by improper cooling or solidification of the casting material, leading to voids or cavities within the material.

• Inclusions: foreign particles or impurities that become trapped within the casting material, affecting its structural integrity.

• Segregatio...read more
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Q3. What types of external defects in continuous casting process?
Ans. 
External defects in continuous casting process include surface cracks, surface blowholes, and surface segregation.
• Surface cracks can occur due to improper cooling or excessive casting speed.

• Surface blowholes are caused by trapped gases in the molten metal.

• Surface segregation results from uneven distribution of alloying elements.

• Other external defects may include surface scabs and surface laps.
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Q4. What type of casting Machine in Jsl jajpur,
Ans. 
JSL Jajpur uses various types of casting machines including continuous casting machines and vertical casting machines.
• JSL Jajpur uses continuous casting machines for producing long, continuous shapes like rods, tubes, and beams.

• They also use vertical casting machines for producing solid shapes like ingots and slabs.

• Other types of casting machines used at JSL Jajpur may include horizontal casting machines and centrifuga
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Q5. What is miniscus level in continuous casting ?
Ans. 
Miniscus level in continuous casting refers to the level of molten metal in the mold during the casting process.
• Miniscus level should be maintained at a specific height to ensure proper solidification of the metal.

• Maintaining the miniscus level helps control the flow of metal and prevent defects in the final product.

• If the miniscus level is too high, it can lead to overflow and if it is too low, it can cause issues wit...read more
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Q6. What is the role of cromium in stainless steel making?
Ans. 
Chromium is added to stainless steel to increase its corrosion resistance and strength.
• Chromium forms a passive oxide layer on the surface of stainless steel, which prevents rusting and corrosion.

• Chromium also improves the hardenability of stainless steel, making it stronger and more durable.

• The amount of chromium added to stainless steel can vary, with higher percentages leading to better corrosion resistance.

• For exam...read more
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Q7. What is the role of Nickel in stainless steel making
Ans. 
Nickel is added to stainless steel to improve its corrosion resistance, strength, and durability.
• Nickel increases the resistance of stainless steel to corrosion and oxidation

• Nickel improves the strength and toughness of stainless steel

• Nickel helps maintain the austenitic structure of stainless steel at high temperatures

• Nickel is often used in combination with other elements like chromium and molybdenum to enhance the p
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It was preety good not much difficult.

Q1. Full form of AOD
Ans. 
AOD stands for Alcohol and Other Drugs.
• AOD refers to substances such as alcohol, tobacco, prescription drugs, and illegal drugs.

• AOD can have negative effects on physical and mental health.

• Treatment programs are available for individuals struggling with AOD use.

• Prevention efforts aim to educate about the risks of AOD use.
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Q1. What is different between buyer credit or supplier credit
Ans. 
Buyer credit is credit extended to the buyer by a financial institution, while supplier credit is credit extended to the buyer by the supplier.
• Buyer credit involves a financial institution providing credit to the buyer to make a purchase, while supplier credit involves the supplier offering credit terms to the buyer.

• Buyer credit typically involves lower interest rates compared to supplier credit.

• Buyer credit may involv...read more
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Q2. What is Lc or bg
Ans. 
LC or BG stands for Letter of Credit or Bank Guarantee, commonly used in international trade to ensure payment or performance.
• LC is a financial document issued by a bank to guarantee payment to a seller upon presentation of documents confirming shipment of goods.

• BG is a promise from a bank to cover a buyer's payment to a seller if the buyer fails to fulfill the terms of a contract.

• Both LC and BG provide security for tr...read more
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Q1. About electric arc furnace
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Q2. Electric arc furnace operation
Ans. 
Electric arc furnace operation involves melting scrap metal using high-voltage electric arcs.
• Electric arc furnaces use graphite electrodes to create an electric arc that melts scrap metal.

• The high temperature generated by the electric arc helps remove impurities from the metal.

• Operators need to monitor the furnace temperature, electrode position, and scrap metal feed rate to ensure efficient operation.
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Q1. Improve the work and kazan mechanical
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Q2. Maximum outputs and kazan process
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Q3. Different work and regular work
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Q4. Flow of work and regular process smart work
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Q5. Step ways working in the company
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Q1. Electrical questions
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Q2. Ammonia cracker , pannel digram types of questions
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Q3. Crane maintenance
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Q4. Motor maintenance
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