ArcelorMittal Nippon Steel PPC Engineer Interview Questions and Answers

Aptitude and Core Related ( Mine was metallurgy )

10 students in a group, 30 minutes duration, unstructured, topic was " pros and cons of WFH"

Q1. HR QUES -- INTRODUCE YOURSELF, YOUR DREAMS/GOALS, YOUR FAMILY, SPECIAL THING ABOUT YOUR HOMETOWN, INTERESTING KEYPOINTS FROM RESUME, SOCIETIES AND POSITION OF RESPONSIBILITIES.
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Q2. TECH QUESTIONS -- TYPES OF DISLOCATIONS, FE-C DIAGRAM, ELLINGHAM DIAGRAM, GIBBS FREE ENERGY, LATENT HEAT, DIFFERENT CRYSTAL STRUCTURES, SLIP PLANES, STEEL MAKING (AOD PROCESS), LE - CHATLIER'S PRINCIPLE, H...read more
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Q1. Draw Shear force and bending moment diagram of a fixed beam.
Ans. 
Shear force and bending moment diagrams show internal forces and moments in a fixed beam.
• Shear force diagram shows the variation of shear force along the length of the beam.

• Bending moment diagram shows the variation of bending moment along the length of the beam.

• At supports of a fixed beam, shear force is maximum and bending moment is zero.

• At midspan of a fixed beam, bending moment is maximum and shear force is zero.
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Q2. What is the position of reinforcement of a cantilever beam.
Ans. 
Reinforcement of a cantilever beam is positioned at the bottom to resist tension forces.
• Reinforcement is placed at the bottom of the cantilever beam to resist tension forces.

• The reinforcement helps in preventing the beam from bending or breaking under load.

• Examples of reinforcement materials include steel bars or mesh.

• Proper positioning and sizing of reinforcement is crucial for the structural integrity of the beam.
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Q3. In railway crossing, which type of sleeper is used.
Ans. 
Concrete sleepers are used in railway crossings.
• Concrete sleepers are preferred over wooden sleepers in railway crossings due to their durability and strength.

• Concrete sleepers help in maintaining the stability and alignment of the tracks at railway crossings.

• Examples of concrete sleepers used in railway crossings include monoblock sleepers and twin block sleepers.
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Discussed at infrastructure

Q1. Technical field related questions
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Q2. HR related questions.
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Q3. AI related questions
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Q1. HR related questions
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Q1. How to know if Hydraulic cylinder leakage
Ans. 
Check for hydraulic cylinder leakage by inspecting for oil puddles, decreased performance, and abnormal noises.
• Inspect the area around the hydraulic cylinder for oil puddles or stains

• Monitor the performance of the hydraulic system for any decrease in efficiency

• Listen for any abnormal noises coming from the hydraulic cylinder during operation
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Q2. What is NAS
Ans. 
NAS stands for Network Attached Storage, which is a type of storage device that connects to a network to provide shared storage space.
• NAS devices are typically used for storing and sharing files, data backups, and media streaming within a network.

• NAS devices can be accessed by multiple users and devices simultaneously over a network.

• NAS devices often have their own operating system and can run various applications such...read more
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Q1. Process of production
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Q2. Final production process
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Q1. What is the use of lubricant in roling mill
Ans. 
Lubricant in rolling mills reduces friction between metal surfaces, prevents wear and tear, and improves efficiency.
• Lubricant reduces friction between metal surfaces in rolling mills

• Prevents wear and tear on machinery

• Improves efficiency by reducing energy consumption

• Helps in cooling the metal during the rolling process

• Examples: oil-based lubricants, grease, graphite-based lubricants
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Q2. What are the major cause of roll broken
Ans. 
The major causes of roll breakage in maintenance engineering include material defects, improper setup, excessive tension, and foreign objects.
• Material defects such as weak spots or impurities can weaken the roll and lead to breakage.

• Improper setup or alignment of the roll can cause uneven stress distribution and eventual breakage.

• Excessive tension on the roll can exceed its load-bearing capacity and cause it to break.

• F...read more
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Q3. What is cause of rolling mill bearing broken
Ans. 
The main causes of rolling mill bearing breakage are lack of lubrication, contamination, overloading, and misalignment.
• Lack of lubrication can lead to increased friction and heat generation, causing the bearing to fail prematurely.

• Contamination from dirt, debris, or water can accelerate wear and tear on the bearing surfaces.

• Overloading the bearing beyond its capacity can cause excessive stress and lead to failure.

• Misal...read more
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Q4. Compressor overhead cause
Ans. 
Compressor overhead cause can be due to various factors such as high discharge pressure, low suction pressure, dirty filters, or worn out components.
• High discharge pressure can lead to overheating of the compressor.

• Low suction pressure can cause the compressor to work harder and overheat.

• Dirty filters can restrict airflow and cause the compressor to overheat.

• Worn out components such as valves or seals can lead to ineff
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Q5. How to measure wire rope condition
Ans. 
Wire rope condition can be measured by visual inspection, non-destructive testing, and load testing.
• Visual inspection for signs of wear, corrosion, broken wires, and distortion

• Non-destructive testing methods like magnetic particle inspection, ultrasonic testing, and dye penetrant testing

• Load testing to assess the strength and integrity of the wire rope under working conditions
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Q6. Lubricant chemicals property
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Gear box replacement work

Q1. Barring checking and replacement work and safety first and all ppes sure and paper work and try out and walked away clean and fresh and blumber block top cover open and old slue Barring remove and new slue...read more
Ans. 
Blumber block top cover open and old slue Barring remove and new slue Barring replace and nut tightening sure and blumber block top cover fixed and bolts nut tightening sure and paper work cancelled and conveyer belt running ok
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Q2. Motor replacement work and safety first and all ppes sure and paper work and try out and walked away clean and fresh and bolts nut open and old motor remove and new motor replace and bolts nut tightening s...read more
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Bolt nut open and old motor remove and new motor replace and bolt nut tightening sure and Dayal gauge eliminate process ok and paper work cancelled and conveyer belt running ok
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Q3. V-scraper replacement work and safety first and all ppes sure and paper work and try out and walked away clean and fresh and bolts nut open and old v-scraper remove new v-scraper replace and bolts nut tigh...read more
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Q4. Discharge Chute replacement work and safety first and all ppes sure and paper work and try out and walked away clean and fresh and bolts nut open and old discharge chute remove and new discharge chute repl...read more
Ans. 
Bolt nut open and old discharge chute remove and new discharge chute replace and bolts nut tightening sure and paper work cancelled and conveyer belt running ok
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Q5. Barring Greasing work and safety first and all ppes sure and paper work and all pulley checking and savings greasing sure and paper work cancelled
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Q6. Gear box replacement work and safety first and all ppes sure and paper work and try out and walked away clean and fresh and bolts nut open and old gear box remove and new gear box replace and bolts nut tig...read more
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Normal question based on steel manufacturing.

Q1. All about DCV, PRV, and Hydraulic.
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Q2. Miscellaneous question about Hydraulic and steps involved in manufacturing of steel, no of panels and their function etc.
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Q1. In detail of the hydraulic system.
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Q2. Function of each equipment and their application in steel plant.
Ans. 
Equipment in a steel plant have specific functions like melting, shaping, and cooling metal to produce various steel products.
• Blast furnace - melts iron ore to produce molten iron

• Electric arc furnace - uses electricity to melt scrap metal and produce steel

• Rolling mill - shapes the molten metal into various forms like sheets, bars, or beams

• Cooling bed - cools down the hot steel products after shaping process

• Annealing fu...read more
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Q1. Provide details about company
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Q2. Salary and post discussion and negotiations.
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