60+ JSW Steel Interview Questions and Answers for Freshers

Interview questions for Assistant Manager position in electrical engineering field.

• Subjects taught: Electrical machines, Control systems, Power systems, etc.

• Favorite subject: Control systems

• Electrical machine: A device that converts electrical energy into mechanical energy or vice versa

• Transformer: A device that transfers electrical energy from one circuit to another through electromagnetic induction

• Induction motor: A type of AC motor where the rotor rotates due to electromag...read more

There are various types of welding such as MIG, TIG, Stick, and Flux-Cored. MIG welding is a popular type of welding.

• MIG welding uses a wire electrode and a shielding gas to join two metal pieces together.

• TIG welding uses a tungsten electrode and a filler metal to create a weld.

• Stick welding uses a consumable electrode coated in flux to create a weld.

• Flux-Cored welding uses a wire electrode with a flux core to create a weld.

• MIG welding is commonly used in automotive and manuf...read more

NGR working principle involves converting negative feedback into positive outcomes.

• NGR stands for Negative to Positive Game Plan

• It focuses on turning negative feedback into opportunities for improvement

• By addressing issues and making necessary changes, NGR helps in achieving positive results

LIW (Last In, First Out) working principle is a method of processing data where the last item added to a stack is the first one to be removed.

• Data is added to the top of the stack and removed from the top as well

• Commonly used in programming for function calls and recursion

• Example: In a stack of plates, the last plate added is the first one to be removed

Power factor can be improved by using capacitors, reducing reactive power, and improving system design.

• Installing power factor correction capacitors can reduce reactive power and improve power factor.

• Reducing the use of inductive loads and increasing the use of capacitive loads can improve power factor.

• Improving system design by minimizing voltage drops, using efficient transformers, and properly sizing conductors can improve power factor.

• Implementing power factor correction ...read more

Yes, I am willing to do the job and am committed to giving my best effort.

• I am highly motivated and dedicated to achieving success in my role.

• I am open to learning new skills and taking on new challenges.

• I am committed to working hard and contributing to the success of the team.

Iron-carbon diagram shows the relationship between carbon content and properties of iron-carbon alloys.

• The diagram is used to determine the microstructure and properties of steel.

• It shows the different phases of iron and carbon at different temperatures.

• The phases include ferrite, austenite, cementite, and pearlite.

• The diagram is important for understanding heat treatment processes and material selection.

• For example, high carbon steel has greater hardness and wear resistance ...read more

MCB stands for Miniature Circuit Breaker. It is a type of electrical switch that automatically shuts off the electrical circuit during an overload or short circuit.

• Types of MCB include Single Pole MCB, Double Pole MCB, Triple Pole MCB, and Four Pole MCB.

• Other types of electrical instruments include Voltmeter, Ammeter, Multimeter, Oscilloscope, and Earth Tester.

• Types of electrical panels commonly used are Distribution Panels, Control Panels, and Motor Control Centers.

Corona effect in transmission lines is the phenomenon of ionization of air surrounding the conductors due to high voltage, leading to energy loss and audible noise.

• Corona effect occurs when the electric field strength around the conductor exceeds the breakdown strength of air, causing ionization of air molecules.

• This ionization results in loss of energy in the form of light, heat, and sound, leading to power loss and audible noise in the transmission line.

• Corona effect can be...read more

3 phase motors operate on the principle of electromagnetic induction to generate rotating magnetic fields.

• Three phase motors have three sets of windings spaced 120 degrees apart

• When current flows through the windings, it creates a rotating magnetic field

• The rotating magnetic field interacts with the rotor to produce motion

• Common types include induction motors and synchronous motors

Latent heat is the heat absorbed or released by a substance during a phase change without a change in temperature.

• Latent heat is the energy required to change the state of a substance without changing its temperature.

• It is the heat absorbed or released during a phase change.

• Latent heat is important in processes such as melting, freezing, vaporization, and condensation.

• Examples include the heat absorbed by ice to melt into water and the heat released by water vapor to condense...read more

Financial instruments are recognized based on their classification and measurement criteria.

• Recognition of financial instruments involves identifying the type of instrument and its classification under accounting standards.

• Measurement criteria such as fair value or amortized cost are then applied to determine the value of the instrument.

• Recognition also involves determining the timing of recognition, such as at initial recognition or subsequent measurement.

• Examples of financi...read more

Transmission lines are used to transmit electrical energy from one point to another efficiently.

• Transmission lines are used to carry electrical signals or power from a source to a load.

• They are designed to minimize losses and maintain signal integrity.

• Single line diagram represents the transmission line as a single line with symbols for components like transformers, circuit breakers, etc.

• Examples of transmission lines include overhead power lines and underground cables.

A thermal power plant diagram shows the process of generating electricity using heat energy.

• The diagram typically includes components such as boilers, turbines, generators, condensers, and cooling towers.

• Heat energy from burning fossil fuels or nuclear reactions is used to produce steam, which drives turbines to generate electricity.

• The steam is then condensed back into water and recycled in the system.

• Cooling towers are used to dissipate excess heat from the process.

• Example:...read more

Conductors, semiconductors, and insulators are materials that differ in their ability to conduct electricity.

• Conductors have high electrical conductivity and allow the flow of electric current easily.

• Semiconductors have moderate electrical conductivity, which can be controlled by adding impurities or applying voltage.

• Insulators have very low electrical conductivity and do not allow the flow of electric current.

• Conductors include metals like copper, silver, and gold.

• Semiconduc...read more

A half bridge rectifier is a type of rectifier circuit that uses two diodes to convert alternating current (AC) to direct current (DC).

• Consists of two diodes connected in a configuration that allows current to flow in only one direction

• Used in applications where a full bridge rectifier is not necessary or practical

• Produces a pulsating DC output

• Commonly used in low power applications such as battery chargers and small power supplies

Journal entry under IND AS 116

• IND AS 116 is a new accounting standard for lease accounting

• It requires lessees to recognize lease liabilities and right-of-use assets on their balance sheets

• Journal entry for lease payments includes debiting lease liability and crediting cash

• Journal entry for depreciation includes debiting depreciation expense and crediting right-of-use asset

AC and DC are two types of electrical current. There are several types of switches used in electrical circuits.

• AC stands for Alternating Current and DC stands for Direct Current.

• AC current changes direction periodically while DC current flows in one direction only.

• Types of switches include toggle switches, rocker switches, push-button switches, and rotary switches.

• Switches can be classified based on their function, such as on/off switches, selector switches, and momentary swi...read more

Renewable sources of energy are natural resources that can be replenished and are not depleted with use.

• Solar energy: harnessing the power of the sun through solar panels

• Wind energy: converting wind into electricity using wind turbines

• Hydroelectric power: generating electricity from flowing or falling water

• Geothermal energy: utilizing heat from the Earth's core

• Biomass energy: converting organic matter into fuel

• Tidal energy: capturing energy from the tides

• Wave energy: harnessi...read more

Yes, India is gradually moving towards a cashless economy.

• The government's push towards digital payments through initiatives like UPI, BHIM, and Aadhaar Pay.

• Increasing adoption of mobile wallets and online payment platforms like Paytm, Google Pay, and Amazon Pay.

• Growing popularity of contactless payments through NFC-enabled cards and mobile phones.

• Demonetization in 2016 also played a role in promoting cashless transactions.

• However, there are still challenges like low digital ...read more

The iron-carbon diagram shows the relationship between carbon content and the properties of steel and iron.

• The diagram plots the percentage of carbon in the alloy against its temperature.

• It helps in understanding the behavior of steel and iron during heating and cooling.

• The diagram shows the different phases of steel and iron, such as ferrite, austenite, and pearlite.

• The diagram is used to determine the heat treatment required to achieve desired properties in steel and iron.

• F...read more

Preventive maintenance involves regular inspections and maintenance to prevent breakdowns, while breakdown maintenance is performed after a breakdown occurs.

• Preventive maintenance is planned maintenance performed on a regular basis to prevent equipment failure.

• Breakdown maintenance is reactive maintenance performed after a breakdown has occurred to restore equipment to working condition.

• Types of couplings include rigid, flexible, and fluid couplings.

• Rigid couplings do not all...read more

The number of gearbox motor and compressor alignments varies depending on the specific machinery and requirements.

• The number of gearbox motor and compressor alignments can range from one to multiple, depending on the number of machines and their configurations.

• Each gearbox motor and compressor alignment requires careful measurement and adjustment to ensure proper alignment and efficient operation.

• Examples of alignments include aligning the motor shaft with the gearbox input s...read more

To measure the width of a river, you can use various methods such as triangulation, using a measuring tape, or using a rangefinder.

• Triangulation involves measuring the distance between two known points on either side of the river and using trigonometry to calculate the width.

• Using a measuring tape involves stretching the tape across the river from one bank to the other and reading the measurement.

• Using a rangefinder involves using a laser or sound waves to measure the distanc...read more

Electrical engineering focuses on power generation and distribution, while electronics engineering deals with electronic devices and circuits.

• Electrical engineering deals with large-scale power systems, such as power plants and electrical grids.

• Electronics engineering focuses on small-scale electronic devices, such as computers, smartphones, and microchips.

• Electrical engineering involves the study of power generation, transmission, and distribution.

• Electronics engineering inv...read more

There are two types of temperature coefficient: positive and negative.

• Positive temperature coefficient (PTC) - resistance increases with temperature

• Negative temperature coefficient (NTC) - resistance decreases with temperature

• PTC is used in thermistors for overcurrent protection

• NTC is used in temperature sensors for temperature measurement

The Listcount of vernier caliper & micrometers is 2.

• The Listcount of vernier caliper is 1.

• The Listcount of micrometers is 1.

Stress and strain are related to the deformation of materials under external forces.

• Stress is the force applied per unit area, while strain is the resulting deformation or change in shape.

• Stress is a measure of the internal resistance of a material to deformation, while strain is a measure of the material's response to stress.

• Stress is typically measured in units of force per unit area (such as Pascal or psi), while strain is dimensionless.

• Stress and strain are related by the...read more

Stress and strain are related to the deformation of a material under applied forces.

• Stress is the force applied per unit area, while strain is the measure of deformation caused by stress.

• Stress is a measure of the internal resistance of a material to deformation, while strain is a measure of the material's response to stress.

• Stress is typically measured in units of force per unit area (such as Pascal or psi), while strain is a dimensionless quantity.

• Stress and strain are rela...read more

DGPS stands for Differential Global Positioning System.

• DGPS is a navigation system that improves the accuracy of GPS positioning.

• It uses a network of fixed ground-based reference stations to broadcast correction signals.

• These correction signals help in reducing errors caused by atmospheric conditions and other factors.

• DGPS is commonly used in marine navigation, land surveying, and precision agriculture.

• It provides more accurate positioning information compared to standard GPS...read more

LOTO system stands for Lockout/Tagout system, which is a safety procedure used to ensure that dangerous machines are properly shut off and not started up again until maintenance or repairs are completed.

• LOTO system is used to control hazardous energy sources during maintenance or repair work.

• It involves locking and tagging the energy-isolating devices to prevent accidental startup.

• The system helps protect workers from hazardous energy releases and potential injuries.

• It is ess...read more

There are three types of alignment: shaft alignment, belt alignment, and gear alignment.

• Shaft alignment involves aligning the rotating shafts of machines to ensure smooth operation and prevent damage.

• Belt alignment refers to aligning the belts in machines such as conveyor systems to prevent slipping and maximize efficiency.

• Gear alignment involves aligning the gears in machines to ensure proper meshing and smooth transmission of power.

A DOL starter is a direct-on-line starter used in electrical systems to start and stop motors.

• DOL stands for Direct-On-Line.

• It is the simplest and most common type of motor starter.

• The DOL starter directly connects the motor to the power supply, providing full voltage at start.

• It consists of a contactor, overload relay, and start and stop buttons.

• When the start button is pressed, the contactor closes and the motor starts.

• The overload relay protects the motor from excessive cu...read more

Coolant ON code is used to activate the coolant system in CNC programming.

• Use M08 code to turn on the coolant in CNC programming

• Make sure to specify the type of coolant (flood, mist, etc.) in the program

• Example: M08 - activates flood coolant system

A shaft is a rotating machine element used to transmit power. Tolerance is the allowable deviation from a specified dimension.

• Shaft is a mechanical component used to transmit power from one part of a machine to another.

• Tolerance is the permissible limit or limits of variation in a physical dimension.

• Types of tolerance include bilateral tolerance, unilateral tolerance, and limit tolerance.

I have handled categories such as marketing, sales, operations, and finance in my previous roles.

• Marketing

• Sales

• Operations

• Finance

There are many types of steel, each with different properties and uses.

• Carbon steel

• Alloy steel

• Stainless steel

• Tool steel

• High-speed steel

Two stroke engine operates on two strokes of the piston to complete one power cycle

• Intake and compression happen in the first stroke

• Combustion and exhaust occur in the second stroke

• Requires a fuel-oil mixture for lubrication

• Simpler design compared to four stroke engines

• Commonly used in small engines like chainsaws, motorcycles, and mopeds

Procurement steps involve identifying needs, selecting suppliers, negotiating contracts, and managing supplier relationships.

• Identify needs and requirements

• Research potential suppliers

• Request for proposals or quotes

• Negotiate terms and pricing

• Select supplier

• Create and sign contracts

• Manage supplier relationships

Stainless steel is a type of steel alloy with a minimum of 10.5% chromium content, which gives it its corrosion-resistant properties.

• Stainless steel contains at least 10.5% chromium, which forms a protective oxide layer on the surface.

• Other common elements in stainless steel include nickel, molybdenum, and carbon.

• Different grades of stainless steel have varying compositions for specific applications.

• Examples of stainless steel grades are 304, 316, and 430.

Subjects studied include mathematics, science, history, literature, and languages.

• Mathematics - algebra, geometry, calculus

• Science - biology, chemistry, physics

• History - world history, American history

• Literature - English literature, poetry

• Languages - Spanish, French, German

Production is the process of creating goods and services using resources and labor.

• Steel is made through a process called smelting, which involves heating iron ore with carbon to create a molten metal.

• The molten metal is then poured into molds to create various shapes and sizes of steel products.

• Different types of steel can be made by adding different alloys to the molten metal.

• The production of steel requires a lot of energy and resources, including iron ore, coal, and water...read more

The number of electrodes in a furnace can vary depending on the type and size of the furnace.

• The number of electrodes in a furnace can range from 1 to 6 or more, depending on the design and capacity of the furnace.

• Electric arc furnaces typically have 3 electrodes, while some larger furnaces may have 6 or more electrodes for increased efficiency.

• The number of electrodes also depends on the power requirements and melting capacity of the furnace.

Tolerance refers to the acceptable range of variation in a product's specifications.

• Tolerance is the maximum allowable deviation from a specified dimension or value.

• It ensures that a product meets quality standards even if there are slight variations in manufacturing.

• For example, if a part is supposed to be 10 cm long with a tolerance of +/- 0.1 cm, it can be anywhere from 9.9 cm to 10.1 cm.

• Tolerance is crucial in industries like manufacturing, engineering, and quality contro...read more

Four electrodes are used in an arc furnace for melting metals.

• Four electrodes are typically arranged in a square or rectangular pattern around the furnace.

• Each electrode delivers a high-voltage current to create an arc between the electrode tip and the metal charge.

• The intense heat generated by the arc melts the metal charge, allowing it to be refined or alloyed.

• Examples of metals melted in arc furnaces include steel, aluminum, and copper.

Friction is the resistance encountered when one object is moved in contact with another. Lubrication is the process of reducing friction between surfaces in contact.

• Friction is the force that opposes the motion of one surface over another.

• Lubrication involves using a substance to reduce friction between surfaces in contact.

• Friction can be both beneficial (e.g. providing traction for walking) and detrimental (e.g. causing wear and tear on machinery).

• Examples of lubricants incl...read more

AC current changes direction periodically while DC current flows in one direction constantly.

• AC current alternates direction periodically, while DC current flows in one direction constantly

• AC current is used in homes for powering appliances, while DC current is used in batteries and electronic devices

• AC current can be easily converted to different voltages using transformers, while DC current requires more complex conversion methods

Steel industry is a crucial sector that produces steel for various applications such as construction, automotive, and manufacturing.

• Steel industry involves the production of steel from iron ore through processes like smelting and refining.

• Steel is used in various sectors such as construction, automotive, machinery, and infrastructure.

• Major players in the steel industry include companies like ArcelorMittal, Nippon Steel, and POSCO.

• The steel industry is influenced by factors li...read more

Types of pumps include centrifugal pumps, positive displacement pumps, and axial flow pumps.

• Centrifugal pumps use a rotating impeller to create a flow of fluid.

• Positive displacement pumps move fluid by trapping a fixed amount and forcing it through the discharge.

• Axial flow pumps move fluid parallel to the pump shaft.

• Examples: Centrifugal pump - water pump, Positive displacement pump - gear pump, Axial flow pump - propeller pump

Viscosity is a measure of a fluid's resistance to flow.

• Viscosity is the internal friction of a moving fluid.

• It is the property that determines how easily a fluid can flow.

• Higher viscosity fluids flow more slowly than lower viscosity fluids.

• Examples of high viscosity fluids include honey and molasses, while water has low viscosity.

The melting point of a hot metal refers to the temperature at which the metal changes from a solid to a liquid state.

• The melting point of a metal can vary depending on the type of metal.

• Common metals like iron have a melting point of around 1,538 degrees Celsius.

• Some metals, like tungsten, have very high melting points due to their strong metallic bonds.

• The melting point can also be affected by impurities in the metal.

Reverse auction is a type of auction in which sellers compete to obtain business from a buyer by offering lower prices.

• Buyers post their requirements and sellers bid with lower prices to win the business.

• The seller with the lowest bid at the end of the auction wins the contract.

• Reverse auctions are commonly used in procurement processes to drive down prices.

• Examples include online platforms like Ariba and Procurify.

Types of gears include spur gears, helical gears, bevel gears, worm gears, rack and pinion gears, and planetary gears.

• Spur gears have straight teeth and are used for parallel shafts.

• Helical gears have angled teeth for smoother operation.

• Bevel gears are used for intersecting shafts.

• Worm gears have a screw-like appearance and are used for high torque applications.

• Rack and pinion gears convert rotational motion into linear motion.

• Planetary gears have multiple 'planet' gears that...read more

The count of vernier and micrometre tools should be listed separately.

• Count of vernier tools: 5

• Count of micrometre tools: 3

Steel is an alloy of iron and carbon, with carbon content typically between 0.2% and 2.1%.

• Steel is primarily composed of iron and carbon.

• The carbon content in steel can range from 0.2% to 2.1%.

• Steel can have various properties depending on the carbon content and other alloying elements added.

• Examples of steel types include carbon steel, stainless steel, and alloy steel.

AC drives control the speed and torque of electric motors by varying the frequency and voltage of the power supplied to the motor.

• AC drives use power electronics to convert AC power to DC power and then back to AC power at variable frequencies.

• They are commonly used in industrial applications to control the speed of pumps, fans, conveyors, and other motor-driven equipment.

• AC drives improve energy efficiency by matching motor speed to the required load, reducing energy consump...read more

The sequence of BLT in a blast furnace is B - L - T, where B stands for burden, L stands for lime, and T stands for temperature.

• Burden (B) is the material that is charged into the blast furnace, typically consisting of iron ore, coke, and fluxes.

• Lime (L) is added to the blast furnace to help remove impurities from the iron ore and create slag.

• Temperature (T) is crucial in the blast furnace process to ensure proper melting and reduction of the iron ore.

• Example: B - Iron ore, c...read more

TCD stands for Transcranial Doppler, a non-invasive ultrasound technique used to measure blood flow in the brain. CCD stands for Charge-Coupled Device, a type of image sensor commonly used in digital cameras.

• TCD is used to assess blood flow in the brain by measuring the velocity of blood in the major arteries of the brain.

• CCD is a type of image sensor that converts light into electrical signals for digital image processing.

• Example: TCD can be used to monitor blood flow in pat...read more

Iron has a melting point of 1538 degrees Celsius.

• Iron melts at 1538 degrees Celsius

• Melting point can vary slightly depending on the purity of the iron

• Iron transitions from solid to liquid state at its melting point

Viscosity is measured in units of poise or centipoise.

• Viscosity is a measure of a fluid's resistance to flow.

• Common units of viscosity include poise (P) and centipoise (cP).

• Water has a viscosity of 1 centipoise at room temperature.

• Honey has a much higher viscosity compared to water.

Ton of refrigeration is a unit of power used to describe the cooling capacity of refrigeration systems.

• 1 ton of refrigeration is equal to the cooling power of one ton of ice melting in 24 hours.

• It is commonly used in the HVAC industry to measure the cooling capacity of air conditioning systems.

• The higher the ton of refrigeration, the greater the cooling capacity of the system.

The formula of a circle is 2πr, where r is the radius of the circle.

• The formula for the circumference of a circle is C = 2πr

• The formula for the area of a circle is A = πr^2

• The value of π is approximately 3.14159