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ArcelorMittal Nippon Steel
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Basic electronics and electrical questions
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
Transformers are used to increase or decrease voltage levels in electrical circuits.
They consist of two coils of wire, known as the primary and secondary coils, wrapped around a core made of iron or other magnetic materials.
Examples of transformers include power transformers used in elec...
Freaday's law states that the induced electromotive force (emf) in any closed circuit is equal to the negative rate of change of the magnetic flux through the circuit.
Freaday's law is a fundamental principle in electromagnetism.
It explains how a changing magnetic field can induce an electric current in a circuit.
The induced emf is proportional to the rate of change of the magnetic flux.
Mathematically, the equation for ...
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it and inversely proportional to the resistance.
Ohm's Law is represented by the formula V = I * R, where V is voltage, I is current, and R is resistance.
It helps in calculating the current flowing through a circuit when the voltage and resistance are known.
It also helps in determining the resistance in a circuit...
Square cage induction motors have a squirrel cage rotor with bars and end rings made of copper or aluminum, while slip ring induction motors have a wound rotor with external resistors connected to slip rings.
Square cage induction motors have a simpler and more rugged construction compared to slip ring motors.
Slip ring induction motors allow for external resistance control, enabling speed control and high starting torqu...
I applied via Campus Placement
Safety precautions in conveyor operation are crucial to prevent accidents and injuries.
Regular maintenance of conveyor belts and equipment
Proper training for employees on safe operation procedures
Use of guards and emergency stop buttons
Regular inspection of conveyor systems for wear and tear
Proper handling of materials to prevent jams or blockages
I applied via Walk-in and was interviewed in Jul 2021. There was 1 interview round.
I was interviewed in Aug 2023.
NGR (Next Generation Routing) is a networking technology that dynamically routes traffic based on real-time network conditions.
NGR uses machine learning algorithms to analyze network data and make routing decisions.
It can optimize traffic flow by selecting the best path based on factors like latency, bandwidth, and congestion.
NGR can adapt to changing network conditions in real-time, improving performance and reliabili...
Ngr stands for Next Generation Routing. It is a routing protocol used in networking to determine the best path for data packets to travel.
Ngr uses advanced algorithms to calculate the most efficient route for data packets.
It takes into account factors such as network congestion, latency, and available bandwidth.
Ngr helps in optimizing network performance and reducing packet loss.
Examples of Ngr protocols include OSPF (...
The lubrication department in a merchant mill is responsible for ensuring proper lubrication of machinery to prevent wear and tear.
The lubrication department is crucial for maintaining the efficiency and longevity of machinery in the merchant mill.
They are responsible for regularly inspecting and lubricating equipment to prevent breakdowns.
Proper lubrication helps reduce friction, heat, and wear on moving parts.
Example...
Number or alfabet in English
Aptitude test from physics
I applied via Recruitment Consulltant and was interviewed before Sep 2020. There were 3 interview rounds.
Physical and chemical quality of raw materials and sinter product is crucial for ensuring product quality and performance.
Raw materials should meet specified physical and chemical requirements to ensure desired sinter product properties.
Regular testing and analysis of raw materials and sinter product is necessary to maintain quality standards.
Factors such as particle size, composition, moisture content, and impurities ...
I was interviewed in Jan 2025.
I applied via Referral and was interviewed before Jan 2019. There were 6 interview rounds.
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